Update ChangeLog and bump version for release.

The run_parts() implementation used variable arguments in a bad way,
resulting in it not working properly.  Replaced va_*() code with a
simple cmd argument that's passed to each script called.

Also, the opendir()/readdir() code has been replaced with scandir()
using regular alphasort(). This simplifies the code somewhat as well.

Otherwise, minor cleanups.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

.gitignore

@@ -1,2 +1,6 @@
 *.o
+.*.d
+*.so
 *.gz
+*.map
+finit

AUTHORS

@@ -0,0 +1,6 @@
+Current Maintainer(s):
+ * Joachim Nilsson <troglobit@gmail.com>
+
+Original Author(s):
+ * Claudio Matsuoka <cmatsuoka@gmail.com>
+

ChangeLog

@@ -0,0 +1,103 @@
+1.6 (20121006)
+	- Skip . and .. in plugin loader and display error on failed plugins
+	- Support for overriding /etc/finit.d with "runparts DIR" in finit.conf
+	- Revoke support for starting services not starting with a slash.
+	- Prevent endless restart of non-existing services in finit.conf
+	- Support for sysvinit style startstop scripts in /etc/finit.d
+	- Minor fix to alsa-utils plugin to silence on non-existing cards
+
+1.5 (20121003)
+	- Use bootmisc plugin to setup standard FHS 2.3 structure in /var
+	- Added FLOG_WARN() syslog macro, for plugins
+	- Add plugin dependency resolver. Checks plugin_t for .depends
+
+1.4 (20121002)
+	- Fix I/O plugin watcher and load plugins earlier for a new hook
+	- Start refactoring helpers.c into a libite.so (-lite).  This
+	  means other user space applications/daemons can make use of
+	  the neat toolbox available in finit
+	- Use short-form -s/-w -u to work with BusyBox hwclock as well
+	- Use RTLD_GLOBAL flag to tell dynamic loader to load dependent
+	  .so files as well.  Lets other plugins use global symbols.
+	- Greatly simplify svc hook for external plugins and cleanup
+	  the plugin API.
+	- And more... see the GIT log for more details.
+
+1.3 (20120928)
+	- Cleanup public plugin API a bit and add new pid/pidfile funcs
+	- Add plugin hook to end of service startup
+	- Remove finit.h from svc.h, plugins should not need this.
+	- Move utility macros etc. to helpers.h
+	- Make finit.h daemon internal, only
+	- Move defines of FIFO, conf and rcS.d to Makefile => correct paths
+	- Add support for installing required headers in system include dir
+	- Better support for distributions and packagers with install-exec,
+	  install-data, and install-dev targets in Makefile.  Useful if you
+	  want to call targets with different $DESTDIR!
+	- Makefile fixes for installation, paths encoded wrong
+	- Strip binaries + .so files, support for $(CROSS) toolchain strip
+	- Default install is now to /sbin/finit and /usr/
+	- Note change in $PLUGIN_DIR environemnt variable to $plugindir
+
+1.2 (20120927)
+	- Fix installation paths encoded in finit binary
+	- Update README with section on building and enviroment variables
+
+1.1 (20120927)
+	- Build fixes for ARM eabi/uClibc
+	- Rename signal.[ch]-->sig.[ch] to avoid name clash w/ system headers
+
+1.0 (20120926)
+	- New plugin based system for all odd extensions
+	- New service monitor that restarts services if they die
+	- New maintainer at GitHub http://github.com/troglobit/finit
+	- Add standard LICENSE and AUTHORS files
+	- New focus: embedded systems and small headless servers
+
+0.6 (20100614)
+	- don't start consolekit manually, dbus starts it (rtp)
+	- unmount all filesystems before rebooting
+	- disable USE_VAR_RUN_RESOLVCONF for Mandriva
+	- unset terminal type in Mandriva before running X
+	- remove extra sleep in finit-alt before calling services.sh (caio)
+
+0.5 (20080821)
+	- add option to start dbus and consolekit before the X server
+	- finit-alt listens to /dev/initctl to work with reboot(8) (smurfy)
+	- write runlevel to utmp, needed by Printerdrake (Pascal Terjan)
+	- fix ownership of /var/run/utmp (reported by Pascal Terjan)
+	- remove obsolete code to load AGP drivers
+	- conditional build of /etc/resolveconf/run support
+	- add support to /var/run/resolvconf in Mandriva (blino)
+
+O.4 (20080516)
+	- default username for finit-alt configurable in Makefile
+	- create loopback device node in finit-alt (for squashfs)
+	- add option to use built-in run-parts instead of /bin/run-parts
+	- ignore signal instead of setting to an empty handler (Metalshark)
+	- handle pam_console permissions in finit-alt for Mandriva
+	- add services.sh example and nash-hotplug patch for Mandriva
+	- mount /proc/bus/usb in Mandriva
+	- add runtime debug to finit-alt if finit_debug parameter is specified
+	- read configuration from /etc/finit.conf
+	- run getty with openvt on the virtual terminal
+
+0.3 (20080223)
+	- Change poweroff method to reboot(RB_POWER_OFF) (Metalshark)
+	- Remove duplicate unionctl() reimplementation error
+	- Fix string termination in path creation
+	- Mount /var/lock and /var/run as tmpfs
+
+0.2 (20080219)
+	- replace system("touch") with touch() in finit-mod (Metalshark)
+	- disable NO_HCTOSYS by default to match stock Eeepc kernel
+	- drop system("rm -f") to clean /tmp, its a fresh mounted tmpfs
+	- write ACPI sleep state to /sys/power/state instead of
+	  /proc/acpi/sleep (Metalshark)
+	- use direct calls to set loopback instead of system("ifconfig")
+	- replace system("cat") and system("dd") with C implementation
+	- moved finit-mod and finit-alt helpers to helpers.c
+	- replace system("echo;cat") to draw shutdown splash with C calls
+
+0.1 (20080214)
+	- initial release

Changelog

@@ -1,47 +0,0 @@
-0.6 ()
-	- don't start consolekit manually, dbus starts it (rtp)
-	- unmount all filesystems before rebooting
-	- disable USE_VAR_RUN_RESOLVCONF for Mandriva
-	- unset terminal type in Mandriva before running X
-	- remove extra sleep in finit-alt before calling services.sh (caio)
-
-0.5 (20080821)
-	- add option to start dbus and consolekit before the X server
-	- finit-alt listens to /dev/initctl to work with reboot(8) (smurfy)
-	- write runlevel to utmp, needed by Printerdrake (Pascal Terjan)
-	- fix ownership of /var/run/utmp (reported by Pascal Terjan)
-	- remove obsolete code to load AGP drivers
-	- conditional build of /etc/resolveconf/run support
-	- add support to /var/run/resolvconf in Mandriva (blino)
-
-O.4 (20080516)
-	- default username for finit-alt configurable in Makefile
-	- create loopback device node in finit-alt (for squashfs)
-	- add option to use built-in run-parts instead of /bin/run-parts
-	- ignore signal instead of setting to an empty handler (Metalshark)
-	- handle pam_console permissions in finit-alt for Mandriva
-	- add services.sh example and nash-hotplug patch for Mandriva
-	- mount /proc/bus/usb in Mandriva
-	- add runtime debug to finit-alt if finit_debug parameter is specified
-	- read configuration from /etc/finit.conf
-	- run getty with openvt on the virtual terminal
-
-0.3 (20080223)
-	- Change poweroff method to reboot(RB_POWER_OFF) (Metalshark)
-	- Remove duplicate unionctl() reimplementation error
-	- Fix string termination in path creation
-	- Mount /var/lock and /var/run as tmpfs
-
-0.2 (20080219)
-	- replace system("touch") with touch() in finit-mod (Metalshark)
-	- disable NO_HCTOSYS by default to match stock Eeepc kernel
-	- drop system("rm -f") to clean /tmp, its a fresh mounted tmpfs
-	- write ACPI sleep state to /sys/power/state instead of
-	  /proc/acpi/sleep (Metalshark)
-	- use direct calls to set loopback instead of system("ifconfig")
-	- replace system("cat") and system("dd") with C implementation
-	- moved finit-mod and finit-alt helpers to helpers.c
-	- replace system("echo;cat") to draw shutdown splash with C calls
-
-0.1 (20081214)
-	- initial release

LICENSE

@@ -0,0 +1,20 @@
+Copyright (c) 2008-2010  Claudio Matsuoka <cmatsuoka@gmail.com>
+Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

Makefile

@@ -1,91 +1,168 @@
-CC	= gcc
-CFLAGS	= -Os -Wall -DVERSION=\"$(VERSION)\" -DWHOAMI=\"`whoami`@`hostname`\"
-LD	= gcc
-LDFLAGS	=
-LIBS	=
-VERSION	= 0.6-pre
-PKG	= finit-$(VERSION)
-DFILES	= Makefile README finit.c finit-mod.c finit-alt.c helpers.c helpers.h \
-	  patches/*patch contrib/services.sh* contrib/Makefile.*
-BINS	= finit-mod finit-alt finit-mdv #finit-exb
+# Finit - Extremely fast /sbin/init replacement w/ I/O, hook & service plugins
+#
+# Copyright (c) 2008-2010  Claudio Matsuoka <cmatsuoka@gmail.com>
+# Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
 
+.PHONY: all install clean distclean dist		\
+	install-exec install-data install-dev		\
+	uninstall-exec uninstall-data uninstall-dev
 
+# Top directory for building complete system, fall back to this directory
+ROOTDIR     = $(shell pwd)
 
-#### Configurable parameters
+#VERSION    ?= $(shell git tag -l | tail -1)
+VERSION    ?= 1.6
+NAME        = finit
+PKG         = $(NAME)-$(VERSION)
+DEV         = $(NAME)-dev
+ARCHIVE     = $(PKG).tar.xz
+EXEC        = finit reboot
+HEADERS     = plugin.h svc.h helpers.h queue.h
+DISTFILES   = LICENSE README ChangeLog finit.conf services
+OBJS        = finit.o conf.o helpers.o sig.o svc.o plugin.o
+OBJS       += strlcpy.o
+SRCS        = $(OBJS:.o=.c)
+DEPS        = $(addprefix .,$(SRCS:.c=.d))
 
-# Default user for finit-alt if not "user"
-#DEFUSER = fred
+# Installation paths, always prepended with DESTDIR if set
+prefix     ?= /usr
+sysconfdir ?= /etc
+sbindir    ?= /sbin
+libdir     ?= /lib
+plugindir  ?= $(libdir)/finit/plugins
+incdir      = $(prefix)/include/finit
+datadir     = $(prefix)/share/doc/finit
+mandir      = $(prefix)/share/man/man8
 
-# Disable annoying gcc warning
-CFLAGS += -U_FORTIFY_SOURCE
+# The initctl FIFO, should probably be in /run, not /dev
+FINIT_FIFO ?= /dev/initctl
+FINIT_CONF ?= $(sysconfdir)/finit.conf
+FINIT_RCSD ?= $(sysconfdir)/finit.d
 
-# Use -march=pentium-m to build for Eeepc
-#CFLAGS += -march=pentium-m
+CFLAGS     += -W -Wall -Werror -Os
+# Disable annoying gcc warning for "warn_unused_result", see GIT 37af997
+CPPFLAGS   += -U_FORTIFY_SOURCE
+CPPFLAGS   += -Ilibite -D_XOPEN_SOURCE=600 -D_BSD_SOURCE -D_GNU_SOURCE
+CPPFLAGS   += -DVERSION=\"$(VERSION)\" -DWHOAMI=\"`whoami`@`hostname`\"
+CPPFLAGS   += -DFINIT_FIFO=\"$(FINIT_FIFO)\" -DFINIT_CONF=\"$(FINIT_CONF)\"
+CPPFLAGS   += -DFINIT_RCSD=\"$(FINIT_RCSD)\" -DPLUGIN_PATH=\"$(plugindir)\"
+LDFLAGS    += -rdynamic -L$(ROOTDIR)/libite
+DEPLIBS     = libite/libite.so
+LDLIBS     += -ldl -lite
 
-# Omit the first /sbin/hwclock if CONFIG_RTC_HCTOSYS is enabled in the kernel 
-#CFLAGS += -DNO_HCTOSYS
+include common.mk
+export libdir plugindir incdir ROOTDIR CPPFLAGS LDFLAGS LDLIBS
 
-# Append -directisa to /sbin/hwclock lines if the user has disabled
-# CONFIG_GENRTC and enabled CONFIG_RTC but not enabled CONFIG_HPET_TIMER
-# and CONFIG_HPET_RTC_IRQ.
-#CFLAGS += -DDIRECTISA
+all: $(DEPLIBS) $(EXEC)
+	$(MAKE) -C plugins $@
 
-# Use built-in run-parts instead of /bin/run-parts
-CFLAGS += -DBUILTIN_RUNPARTS
+$(DEPLIBS): Makefile
+	$(MAKE) -C libite all
 
-#### End of configurable parameters
+$(OBJS): Makefile
 
+finit: $(OBJS) $(DEPLIBS)
 
+reboot: reboot.o $(DEPLIBS)
 
-ifneq ($(DEFUSER),)
-CFLAGS += -DDEFUSER=\"$(DEFUSER)\"
-endif
+install-exec: all
+	@$(INSTALL) -d $(DESTDIR)$(FINIT_RCSD)
+	@$(INSTALL) -d $(DESTDIR)$(sbindir)
+	@for file in $(EXEC); do                                        \
+		printf "  INSTALL $(DESTDIR)$(sbindir)/$$file\n";   	\
+		$(STRIPINST) $$file $(DESTDIR)$(sbindir)/$$file; 	\
+	done
+	$(MAKE) -C libite  install-exec
+	$(MAKE) -C plugins install
 
-.c.o:
-	$(CC) -c $(CFLAGS) -o $*.o $<
+install-data:
+	@$(INSTALL) -d $(DESTDIR)$(datadir)
+	@$(INSTALL) -d $(DESTDIR)$(mandir)
+	@for file in $(DISTFILES); do	                                \
+		printf "  INSTALL $(DESTDIR)$(datadir)/$$file\n";	\
+		$(INSTALL) -m 0644 $$file $(DESTDIR)$(datadir)/$$file;	\
+	done
 
-all: $(BINS)
+install-dev:
+	@$(INSTALL) -d $(DESTDIR)$(incdir)
+	@for file in $(HEADERS); do	                                \
+		printf "  INSTALL $(DESTDIR)$(incdir)/$$file\n";	\
+		$(INSTALL) -m 0644 $$file $(DESTDIR)$(incdir)/$$file;	\
+	done
+	$(MAKE) -C libite install-dev install-exec
 
-finit: finit.o
-	$(LD) $(LDFLAGS) -o $@ $+ $(LIBS)
-	strip $@
+install: install-exec install-data install-dev
 
-finit-mod: finit-mod.o helpers.o
-	$(LD) $(LDFLAGS) -o $@ $+ $(LIBS)
-	strip $@
+uninstall-exec:
+	-@for file in $(EXEC); do 					\
+		printf "  REMOVE  $(DESTDIR)$(sbindir)/$$file\n";   	\
+		rm $(DESTDIR)$(sbindir)/$$file 2>/dev/null; 		\
+	done
+	-@rmdir $(DESTDIR)$(sbindir) 2>/dev/null
+	-@rmdir $(DESTDIR)$(FINIT_RCSD) 2>/dev/null
+	$(MAKE) -C libite  uninstall
+	$(MAKE) -C plugins uninstall
 
-finit-alt: finit-alt.o helpers.o
-	$(LD) $(LDFLAGS) -o $@ $+ $(LIBS)
-	strip $@
+uninstall-data:
+	@for file in $(DISTFILES); do	                                \
+		printf "  REMOVE  $(DESTDIR)$(datadir)/$$file\n";	\
+		rm $(DESTDIR)$(datadir)/$$file 2>/dev/null;		\
+	done
+	-@rmdir $(DESTDIR)$(mandir)
+	-@rmdir $(DESTDIR)$(datadir)
 
-finit-mdv: finit-mdv.o helpers.o
-	$(LD) $(LDFLAGS) -o $@ $+ $(LIBS)
-	strip $@
+uninstall-dev:
+	-@$(RM) -rf $(DESTDIR)$(incdir)
 
-finit-mdv.o: finit-alt.c Makefile
-	$(CC) -c $(CFLAGS) -DDIST_MDV -o $@ finit-alt.c
-
-finit-exb: finit-exb.o helpers.o
-	$(LD) $(LDFLAGS) -o $@ $+ $(LIBS)
-	strip $@
-
-finit-exb.o: finit-alt.c Makefile
-	$(CC) -c $(CFLAGS) -DDIST_EEEXUBUNTU -o $@ finit-alt.c
+uninstall: uninstall-exec uninstall-data uninstall-dev
 
 clean:
-	rm -f *.o core *~ $(BINS)
+	-@$(RM) $(OBJS) $(DEPS) $(EXEC)
+	$(MAKE) -C libite  $@
+	$(MAKE) -C plugins $@
 
-finit.o: finit.c Makefile
-
-finit-mod.o: finit-mod.c Makefile
-
-helpers.o: helpers.c  Makefile
+distclean: clean
+	-@$(RM) $(JUNK) unittest *.o .*.d
+	$(MAKE) -C libite  $@
+	$(MAKE) -C plugins $@
 
 dist:
-	rm -Rf $(PKG)
-	mkdir -p $(PKG)/contrib $(PKG)/patches
-	for i in $(DFILES); do cp $$i $(PKG)/`dirname $$i`; done
-	tar cf - $(PKG) | gzip -c > $(PKG).tar.gz
-	rm -Rf $(PKG)
-	ls -l $(PKG).tar.gz
+	@echo "Building xz tarball of $(PKG) in parent dir..."
+	git archive --format=tar --prefix=$(PKG)/ $(VERSION) | xz >../$(ARCHIVE)
+	@(cd ..; md5sum $(ARCHIVE) | tee $(ARCHIVE).md5)
 
+dev: distclean
+	@echo "Building unstable xz $(DEV) in parent dir..."
+	-@$(RM) -f ../$(DEV).tar.xz*
+	@(dir=`mktemp -d`; mkdir $$dir/$(DEV); cp -a . $$dir/$(DEV); \
+	  cd $$dir; tar --exclude=.git --exclude=contrib             \
+                        -c -J -f $(DEV).tar.xz $(DEV);               \
+	  cd - >/dev/null; mv $$dir/$(DEV).tar.xz ../; cd ..;        \
+	  rm -rf $$dir; md5sum $(DEV).tar.xz | tee $(DEV).tar.xz.md5)
+
+# Include automatically generated rules, such as:
+# uncgi.o: .../some/dir/uncgi.c /usr/include/stdio.h
+# but don't bother during clean!
+ifneq ($(MAKECMDGOALS),clean)
+ifneq ($(MAKECMDGOALS),distclean)
+-include $(DEPS)
+endif
+endif

README

@@ -1,48 +0,0 @@
-
-Finit is a reimplementation of the Eeepc "fastinit" program based on its
-system calls with gaps filled with frog DNA.
-
-Finit's purpose is to build upon the general workings of fastinit and
-improve/optimize it for Xandros or alternative distributions running on
-the Eeepc. Finit comes in three flavors: finit is a replica of the Asus
-fastinit, finit-mod is an improved drop-in replacement for fastinit,
-and finit-alt is a generic replacement for other systems. Finit-mod
-and finit-alt were much improved with patches from Metalshark. 
-
-See more information at http://helllabs.org/finit/
-
-
-Usage scenarios
----------------
-
-1. Replace the original Eeepc 702 fastinit (finit-mod)
-
-2. Allow fast booting in alternative Linux distributions running on the
-   Eeepc and other netbooks (finit-alt)
-
-
-Finit-alt is distribution-specific. Currently it generates a finit-mdv
-executable for Mandriva 2008/2008.1 systems. Smurfy ported it to
-eeeXubuntu, and parts of his port have been merged to finit-alt.
-
-
-Finit-alt features
-------------------
-
-Finit-alt reads configuration information from /etc/finit.conf. See
-the source code for available options.
-
-
-Rebooting and halting
----------------------
-
-Finit handles SIGUSR1 and SIGUSR2 for reboot and halt, and listens to
-/dev/initctl so standard Linux reboot and halt commands should also
-work.
-
-
-Debugging
----------
-
-Add finit_debug to the kernel parameter line to enable trace messages
-and to run a shell after the X server.

README

@@ -0,0 +1 @@
+README.rst

README.eeexubuntu

@@ -1,4 +0,0 @@
-
-Experimental eeeXubuntu support merged from smurfy's port, see
-http://forum.eeeuser.com/viewtopic.php?id=15685
-

README.mandriva

@@ -1,33 +0,0 @@
-
-Mandriva 2008
--------------
-
-1 - Add init=/sbin/finit-mdv to the kernel boot line
-
-2 - Provide a suitable /usr/sbin/services.sh, this is the one I use in my
-    test system running e17:
-
-    mkdir /var/lock/subsys
-    chmod 1777 /var/lock/subsys
-    /etc/init.d/network start
-    dhclient eth0
-    /sbin/start_udev&
-    /etc/init.d/portmap start
-    /etc/init.d/nfs-common start
-
-    If you use KDE or need more services, see examples in contrib/
-
-3 - Create /etc/finit.conf with user, module, filesystems to check and
-    hostname parameters. See the included finit.conf for more information.
-    If no user is specified, user "user" will be used as default.
-
-4 - Set the pointer device in the X server configuration to /dev/input/mice
-
-
-
-Mandriva 2008.1
----------------
-
-If you have a stuck nash-hotplug consuming 100% of CPU after the boot, you
-may want to patch mkinitrd using patches/mkinitrd-6.0.34-nash-hotplug.patch
-

README.rst

@@ -0,0 +1,195 @@
+==============================================================================
+        Finit — A fast plugin-based /sbin/init with service monitoring
+==============================================================================
+
+Welcome to finit!
+
+This is an extremely fast /sbin/init replacement with focus on small
+embedded GNU/Linux systems.  Based on Claudio Matsuoka's original finit_
+with I/O, service and hook plugin extensions.  The original was a
+reimplementation of the EeePC fastinit_ daemon based on its system
+calls with gaps filled with frog DNA.
+
+In the world of finit we write C plugins that hook into and extend the
+``main()`` loop of ``/sbin/init``, this is what gives the system its raw
+performance and the user full control.
+
+If you chose finit you know what you want, a fast no hassles boot!
+
+
+Features
+--------
+
+**Service monitoring**
+   Restarting a service when it exits
+
+**Plugins**
+   Extend and modify finit behavior. See examples in plugins/ directory.
+   Plugin capabilities:
+   
+   * Service callbacks — should the service run/restart/stop?
+   * Hooks — hook into the boot at predefined points to extend finit
+   * I/O — listen to external events and control finit behaviour/services
+
+Most extensions and functionality not purely related to what an /sbin/init
+needs to start a system from the original finit_ has been reactored into
+plugins with either hooks or I/O demands.
+
+
+/etc/finit.conf
+---------------
+
+Contrary to most script based init alternatives (`SysV init`_, upstart_,
+OpenRC_ and the likes) finit instead reads its configuration from
+``/etc/finit.conf``, see the source code for available options.
+
+When running ``make install`` no default ``/etc/finit.conf`` will be
+provided since the system requirements differ too much.  Try out the
+Debian 6.0 example ``/usr/share/doc/finit/finit.conf`` configuration
+that is capable of service monitoring SSH, sysklogd, gdm and a console
+getty!
+
+
+/etc/finit.d
+------------
+
+At the end of the boot, when networking and all services are up, finit
+calls its built-in run-parts(8) on the ``/etc/finit.d/`` directory, akin
+to how the ``/ec/rc.local`` file works in most other inits, only finit
+runs a directory of scripts.  This replaces the earlier
+``/usr/sbin/services.sh`` support of the original finit_.
+
+
+Rebooting and Halting
+---------------------
+
+Finit handles SIGUSR1 and SIGUSR2 for reboot and halt, and listens to
+``/dev/initctl`` so standard Linux reboot and halt commands should also
+work.
+
+
+Building
+--------
+
+The finit build system does not employ the GNU Configure and Build System,
+instead standard makefiles are used. The user is encouraged to make source
+code changes, using defines and conditionally building plugins instead to
+alter the behavior of finit.
+
+The following environment variables are checked by the makefiles and control
+what is built and where resulting binaries are installed.
+
+**ROOTDIR=**
+   Top directory for building complete system, used in pretty printing
+
+**VERSION=**
+   Defaults to the currently released version of finit, e.g., 1.3 but can
+   be overridden by packages to add a suffix or completely alter the version.
+
+**CFLAGS=**
+   Standard CFLAGS are inherited from the build enviornmant.
+
+**CPPFLAGS=**
+   Standard CPPFLAGS are inherited from the build enviornmant.
+
+**LDFLAGS=**
+   Standard LDFLAGS are inherited from the build enviornmant.
+
+**LDLIBS=**
+   Standard LIBLIBS are inherited from the build enviornmant.
+
+**prefix=**
+   Base prefix path for all files, except ``sbinbdir`` and ``sysconfdir``.
+   Used in concert with the ``DESTDIR`` variable. Defaults to ``/usr``
+
+**sbindir=**
+   Path to where resulting binaries should install to. Used in concert
+   with the ``DESTDIR`` variable. Defaults to ``/sbin``
+
+**sysconfdir=**
+   Path to where finit configuration files should install to. Used in
+   concert with the ``DESTDIR`` variable.  Defaults to ``/etc``, but is
+   currently unused.
+
+**PLUGINS=**
+   List of stock finit plugins to build and install.
+
+**plugindir=**
+   Absolute path to where finit should look for dynamically loadable plugins
+   at runtime. At installation prepended by ``DESTDIR`` and ``prefix``.
+   Defaults to ``/lib/finit/plugins``
+
+**DESTDIR=**
+   Used by packagers and distributions when building a relocatable
+   bundle of files. Alwawys prepended to the ``prefix`` destination
+   directory.
+
+**Example**::
+
+  $ tar xfJ finit-1.3.tar.xz
+  $ PLUGINS="initctl.so hwclock.so" DESTDIR=/tmp/finit/dst \
+    make -C finit-1.3/ clean install
+  make: Entering directory `/home/troglobit/finit-1.3'
+    CC      finit.o
+    CC      conf.o
+    CC      helpers.o
+    CC      sig.o
+    CC      svc.o
+    CC      plugin.o
+    CC      strlcpy.o
+    LINK    finit
+    CC      plugins/initctl.o
+    PLUGIN  plugins/initctl.so
+    CC      plugins/hwclock.o
+    PLUGIN  plugins/hwclock.so
+    INSTALL /tmp/finit/dst/sbin/finit
+    INSTALL /tmp/finit/dst/lib/finit/plugins/initctl.so
+    INSTALL /tmp/finit/dst/lib/finit/plugins/hwclock.so
+  make: Leaving directory `/home/troglobit/finit-1.3'
+
+In this example the `finit-1.3.tar.xz`_ archive is unpacked to the
+user's home directory, built and installed to a temporary staging
+directory.  The enviroment variables ``DESTDIR`` and ``PLUGINS`` are
+changed to suit this particular build.
+
+
+Running
+-------
+
+The default install does not setup finit as the system default
+``/sbin/init``, neither does it setup an initial ``/etc/finit.conf``.
+
+It is assumed that users of finit are competent enough to either setup
+finit as their default ``/sbin/init`` or alter their respective Grub,
+LOADLIN, LILO, U-Boot/Barebox or RedBoot boot loader configuration to
+give the kernel the following extra command line::
+
+  init=/sbin/finit
+
+
+Debugging
+---------
+
+Add ``finit_debug``, or ``--debug``, to the kernel command line to
+enable trace messages.  A console getty is always started, see the file
+``finit.h`` for more useful comile-time tweaks::
+
+  init=/sbin/finit --debug
+
+
+Contact
+-------
+
+Finit is maintained collaborativly at http://github.com/troglobit/finit —
+please file a bug report, clone it, or send pull requests for bug fixes and
+proposed extensions, or become a co-maintainer by contacting the main author.
+
+Regards
+ /Joachim Nilsson <troglobit@gmail.com>
+
+.. _finit: http://helllabs.org/finit/
+.. _fastinit: http://wiki.eeeuser.com/boot_process:the_boot_process
+.. _`SysV init`: http://savannah.nongnu.org/projects/sysvinit
+.. _upstart: http://upstart.ubuntu.com/
+.. _openrc: http://www.gentoo.org/proj/en/base/openrc/
+.. _`finit-1.3.tar.xz`: http://github.com/downloads/troglobit/finit/finit-1.3.tar.xz

TODO

@@ -0,0 +1,6 @@
+* FHS changes, see http://askubuntu.com/questions/57297/why-has-var-run-been-migrated-to-run
+* Look at Erik Troan's nash linuxrc parser for more inspiration
+* Look at how to support a standard SysV init runlevel mechanism
+* Arguments to finit, like to SysV init "init q" to reload finit.conf at runtime, etc.
+* Implement initctl stop|start|reload <SVC> and service <SVC> stop|start|reload on top
+* Write man pages for finit and finit.conf, steal from pimd man pages...

common.mk

@@ -0,0 +1,25 @@
+# Some junk files we always want to be removed when doing a make clean.
+JUNK       = *~ *.bak *.aux *.dvi *.idx *.ind *.log *.ps *.map .*.d DEADJOE semantic.cache *.gdb *.elf core core.*
+MAKE      := @$(MAKE)
+MAKEFLAGS  = --no-print-directory --silent
+INSTALL   := install --backup=off
+STRIPINST := $(INSTALL) -s --strip-program=$(CROSS)strip -m 0755
+
+# Smart autodependecy generation via GCC -M.
+.%.d: %.c
+	@$(SHELL) -ec "$(CC) -MM $(CFLAGS) $(CPPFLAGS) $< \
+		| sed 's,.*: ,$*.o $@ : ,g' > $@; \
+                [ -s $@ ] || rm -f $@"
+
+# Override default implicit rules
+%.o: %.c
+	@printf "  CC      $(subst $(ROOTDIR)/,,$(shell pwd)/$@)\n"
+	@$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
+
+%: %.o
+	@printf "  LINK    $(subst $(ROOTDIR)/,,$(shell pwd)/$@)\n"
+	@$(CC) $(CFLAGS) $(LDFLAGS) -Wl,-Map,$@.map -o $@ $^ $(LDLIBS$(LDLIBS-$(@)))
+
+%.so: %.o
+	@printf "  PLUGIN  $(subst $(ROOTDIR)/,,$(shell pwd)/$@)\n"
+	@$(CC) $(LDFLAGS) -o $@ $^ $(LDLIBS)

conf.c

@@ -0,0 +1,150 @@
+/* Parser for finit.conf
+ *
+ * Copyright (c) 2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <string.h>
+
+#include "finit.h"
+#include "svc.h"
+#include "helpers.h"
+
+/* Match one command. */
+#define MATCH_CMD(l, c, x)					\
+	(!strncmp(l, c, strlen(c)) && (x = (l) + strlen(c)))
+
+
+static char *build_cmd(char *cmd, char *line, int len)
+{
+	int l;
+	char *c;
+
+	/* Trim leading whitespace */
+	while (*line && (*line == ' ' || *line == '\t'))
+		line++;
+
+	if (!cmd) {
+		cmd = malloc (strlen(line) + 1);
+		if (!cmd) {
+			_e("No memory left for '%s'", line);
+			return NULL;
+		}
+		*cmd = 0;
+	}
+	c = cmd + strlen(cmd);
+	for (l = 0; *line && *line != '#' && *line != '\t' && l < len; l++)
+		*c++ = *line++;
+	*c = 0;
+
+	_d("cmd = %s", cmd);
+	return cmd;
+}
+
+void parse_finit_conf(char *file)
+{
+	FILE *fp;
+	char line[LINE_SIZE];
+	char cmd[CMD_SIZE];
+
+	/* Default username and hostname */
+	username = strdup(DEFUSER);
+	hostname = strdup(DEFHOST);
+
+	if ((fp = fopen(file, "r")) != NULL) {
+		char *x;
+
+		_d("Parse %s ...", file);
+		while (!feof(fp)) {
+			if (!fgets(line, sizeof(line), fp))
+				continue;
+			chomp(line);
+
+			_d("conf: %s", line);
+
+			/* Skip comments. */
+			if (MATCH_CMD(line, "#", x)) {
+				continue;
+			}
+			/* Do this before mounting / read-write */
+			if (MATCH_CMD(line, "check ", x)) {
+				strcpy(cmd, "/sbin/fsck -C -a ");
+				build_cmd(cmd, x, CMD_SIZE);
+				run_interactive(cmd, "Checking file system integrity on %s", x);
+				continue;
+			}
+			if (MATCH_CMD(line, "user ", x)) {
+				if (username) free(username);
+				username = build_cmd(NULL, x, USERNAME_SIZE);
+				continue;
+			}
+			if (MATCH_CMD(line, "host ", x)) {
+				if (hostname) free(hostname);
+				hostname = build_cmd(NULL, x, HOSTNAME_SIZE);
+				continue;
+			}
+			if (MATCH_CMD(line, "shutdown ", x)) {
+				if (sdown) free(sdown);
+				sdown = build_cmd(NULL, x, CMD_SIZE);
+				continue;
+			}
+			if (MATCH_CMD(line, "module ", x)) {
+				strcpy(cmd, "/sbin/modprobe ");
+				build_cmd(cmd, x, CMD_SIZE);
+				run_interactive(cmd, "   Loading module %s", x);
+				continue;
+			}
+			if (MATCH_CMD(line, "mknod ", x)) {
+				strcpy(cmd, "/bin/mknod ");
+				build_cmd(cmd, x, CMD_SIZE);
+				run_interactive(cmd, "   Creating device node %s", x);
+				continue;
+			}
+			if (MATCH_CMD(line, "network ", x)) {
+				if (network) free(network);
+				network = build_cmd(NULL, x, CMD_SIZE);
+				continue;
+			}
+			if (MATCH_CMD(line, "runparts ", x)) {
+				if (rcsd) free(rcsd);
+				hostname = build_cmd(NULL, x, CMD_SIZE);
+				continue;
+			}
+			if (MATCH_CMD(line, "startx ", x)) {
+				svc_register(x, username);
+				continue;
+			}
+			if (MATCH_CMD(line, "service ", x)) {
+				svc_register(x, NULL);
+				continue;
+			}
+		}
+		fclose(fp);
+	}
+}
+
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

contrib/Makefile.gdium

@@ -1,88 +0,0 @@
-CC	= gcc
-CFLAGS	= -Os -Wall -DVERSION=\"$(VERSION)\" -DWHOAMI=\"`whoami`@`hostname`\"
-LD	= gcc
-LDFLAGS	=
-LIBS	=
-VERSION	= 0.6-pre
-PKG	= finit-$(VERSION)
-DFILES	= Makefile README finit.c finit-mod.c finit-alt.c helpers.c helpers.h \
-	  patches/*patch contrib/services.sh*
-BINS	= finit-mod finit-alt finit-mdv #finit-exb
-
-
-
-#### Configurable parameters
-
-# Default user for finit-alt if not "user"
-#DEFUSER = fred
-
-# Use -march=pentium-m to build for Eeepc
-#CFLAGS += -march=pentium-m
-
-# Omit the first /sbin/hwclock if CONFIG_RTC_HCTOSYS is enabled in the kernel 
-CFLAGS += -DNO_HCTOSYS
-
-# Append -directisa to /sbin/hwclock lines if the user has disabled
-# CONFIG_GENRTC and enabled CONFIG_RTC but not enabled CONFIG_HPET_TIMER
-# and CONFIG_HPET_RTC_IRQ.
-#CFLAGS += -DDIRECTISA
-
-# Use built-in run-parts instead of /bin/run-parts
-CFLAGS += -DBUILTIN_RUNPARTS
-
-#### End of configurable parameters
-
-
-
-ifneq ($(DEFUSER),)
-CFLAGS += -DDEFUSER=\"$(DEFUSER)\"
-endif
-
-.c.o:
-	$(CC) -c $(CFLAGS) -o $*.o $<
-
-all: $(BINS)
-
-finit: finit.o
-	$(LD) $(LDFLAGS) -o $@ $+ $(LIBS)
-	strip $@
-
-finit-mod: finit-mod.o helpers.o
-	$(LD) $(LDFLAGS) -o $@ $+ $(LIBS)
-	strip $@
-
-finit-alt: finit-alt.o helpers.o
-	$(LD) $(LDFLAGS) -o $@ $+ $(LIBS)
-	strip $@
-
-finit-mdv: finit-mdv.o helpers.o
-	$(LD) $(LDFLAGS) -o $@ $+ $(LIBS)
-	strip $@
-
-finit-mdv.o: finit-alt.c Makefile
-	$(CC) -c $(CFLAGS) -DDIST_MDV -o $@ finit-alt.c
-
-finit-exb: finit-exb.o helpers.o
-	$(LD) $(LDFLAGS) -o $@ $+ $(LIBS)
-	strip $@
-
-finit-exb.o: finit-alt.c Makefile
-	$(CC) -c $(CFLAGS) -DDIST_EEEXUBUNTU -o $@ finit-alt.c
-
-clean:
-	rm -f *.o core *~ $(BINS)
-
-finit.o: finit.c Makefile
-
-finit-mod.o: finit-mod.c Makefile
-
-helpers.o: helpers.c  Makefile
-
-dist:
-	rm -Rf $(PKG)
-	mkdir -p $(PKG)/contrib $(PKG)/patches
-	for i in $(DFILES); do cp $$i $(PKG)/`dirname $$i`; done
-	tar cf - $(PKG) | gzip -c > $(PKG).tar.gz
-	rm -Rf $(PKG)
-	ls -l $(PKG).tar.gz
-

contrib/services.sh-mdv2008

@@ -1,20 +0,0 @@
-#!/bin/sh
-#
-# Example /usr/sbin/services.sh that can be used in a Mandriva 2008 system
-# running KDE
-
-mkdir /var/lock/subsys
-chmod 1777  /var/lock/subsys
-/sbin/start_udev
-mkdir /var/run/dbus
-/etc/init.d/messagebus start
-/etc/init.d/haldaemon start
-/etc/init.d/alsa start
-/etc/init.d/sound start
-/etc/init.d/crond start
-/etc/init.d/network-up start
-/etc/init.d/network start
-#/etc/init.d/sshd start
-/etc/init.d/syslog start
-/sbin/pam_console_apply
-#kbuildsycoca --noincremental

contrib/services.sh-mdv2008.1-pterjan

@@ -1,28 +0,0 @@
-#!/bin/sh
-
-# Else oocalc will crash
-mknod /dev/random c 1 8
-
-mkdir /var/lock/subsys
-chmod 1777  /var/lock/subsys
-mkdir /var/run/dbus
-mkdir /var/run/netreport
-
-/etc/init.d/messagebus start
-
-/sbin/start_udev.simple
-for module in `/bin/grep -hv '#' /etc/modprobe.preload /etc/modprobe.preload.d/*`; do
-  /sbin/modprobe $module
-done
- 
-# Need to find a way to apply udev config
-chmod 0666 /dev/ptmx
-
-/etc/init.d/network-up start
-/etc/init.d/network start
-/etc/init.d/acpid start
-/etc/init.d/haldaemon start
-sleep 10
-for i in /etc/rc5.d/S*; do
-	$i status > /dev/null 2>&1 || $i start
-done

contrib/services.sh-miura

@@ -1,44 +0,0 @@
-#!/bin/sh
-# precaution, if the hotplug tag exists in mkinitrd
-killall nash-hotplug &
-
-#give some priority to the user processes
-renice -5 -u gdium
-
-# Else oocalc will crash
-mknod /dev/random c 1 8 &
-mkdir /var/lock/subsys &
-chmod 1777  /var/lock/subsys
-mkdir /var/run/dbus &
-mkdir /var/run/netreport &
-mkdir /var/run/ConsoleKit &
-mkdir /var/log &
-/etc/init.d/haldaemon start &
-
-sleep 25
-# postpone udev and others startup, they are too slow
-# limit the amount of udev childs, should speed up a little
-export UDEV_MAX_CHILDS=2
-export UDEV_MAX_CHILDS_RUNNING=2
-/sbin/start_udev
-/sbin/swapon -a &
-
-chmod 0666 /dev/null
-chmod 0666 /dev/ptmx
-/etc/init.d/alsa start
-/etc/init.d/network start
-for module in `/bin/grep -hv '#' /etc/modprobe.preload /etc/modprobe.preload.d/*`; do
-	  /sbin/modprobe $module
-done
-
-# restore (hopefully) the priority to the user processes
-renice 0 -u gdium
-
-# fuse status always say 0
-/sbin/service fuse start
-for i in /etc/rc5.d/S*; do
-	$i status > /dev/null 2>&1 || $i start
-done
-
-# enable this to stop bootchart when testing
-(sleep 30; /sbin/bootchartd stop)&

finit-alt.c

@@ -1,621 +0,0 @@
-/*
-Improved fast init
-
-Copyright (c) 2008 Claudio Matsuoka
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <sys/mount.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <dirent.h>
-#include <errno.h>
-#include <signal.h>
-#include <unistd.h>
-#include <sys/reboot.h>
-#include <sys/wait.h>
-#include <linux/fs.h>
-#include <utmp.h>
-
-#include "helpers.h"
-
-#ifndef DEFUSER
-#define DEFUSER "user"
-#endif
-
-/* Distribution configuration */
-
-#if defined DIST_MDV	/* Mandriva */
-#define RANDOMSEED	"/var/lib/random-seed"
-#define SYSROOT		"/sysroot"
-#define GETTY		"/usr/bin/openvt /sbin/mingetty tty2"
-#define RUNPARTS	"/usr/bin/run-parts"
-#define REMOUNT_ROOTFS_RW
-#define MAKE_DEVICES
-#define MAKE_DEV_VCS
-#define PAM_CONSOLE
-#define LISTEN_INITCTL
-#define RUNLEVEL	5
-#define USE_MESSAGE_BUS
-#elif defined DIST_EEEXUBUNTU	/* eeeXubuntu */
-#define RANDOMSEED	"/var/lib/urandom/random-seed"
-#define SYSROOT		"/sysroot"
-#define GETTY		"/usr/bin/openvt /sbin/getty 38400 tty2"
-#define RUNPARTS	"/bin/run-parts"
-#define REMOUNT_ROOTFS_RW
-#define MAKE_DEVICES
-#define TOUCH_ETC_NETWORK_RUN_IFSTATE
-#define LISTEN_INITCTL
-#else			/* original Eeepc distribution */
-#define RANDOMSEED	"/var/lib/urandom/random-seed"
-#define SYSROOT		"/mnt"
-#define GETTY		"/usr/bin/openvt /sbin/getty 38400 tty2"
-#define RUNPARTS	"/bin/run-parts"
-#define TOUCH_ETC_NETWORK_RUN_IFSTATE
-#define USE_ETC_RESOLVCONF_RUN
-#endif
-
-#ifdef DIRECTISA
-#define HWCLOCK_DIRECTISA " --directisa"
-#else
-#define HWCLOCK_DIRECTISA
-#endif
-
-
-/* From sysvinit */
-/* Set a signal handler. */
-#define SETSIG(sa, sig, fun, flags) \
-		do { \
-			sa.sa_handler = fun; \
-			sa.sa_flags = flags; \
-			sigemptyset(&sa.sa_mask); \
-			sigaction(sig, &sa, NULL); \
-		} while (0)
-
-#ifdef LISTEN_INITCTL
-
-#define INIT_MAGIC		0x03091969
-#define INIT_CMD_RUNLVL		1
-
-struct init_request {
-	int	magic;			/* Magic number                 */
-	int	cmd;			/* What kind of request         */
-	int	runlevel;		/* Runlevel to change to        */
-	int	sleeptime;		/* Time between TERM and KILL   */
-	char	data[368];
-};
-#endif
-
-#define touch(x) mknod((x), S_IFREG|0644, 0)
-#define chardev(x,m,maj,min) mknod((x), S_IFCHR|(m), makedev((maj),(min)))
-#define blkdev(x,m,maj,min) mknod((x), S_IFBLK|(m), makedev((maj),(min)))
-
-#define MATCH_CMD(l,c,x) \
-	((!strncmp((l), (c), strlen((c)))) && ((x) = (l) + strlen((c))))
-
-#define _d(x...) do { if (debug) { printf(x); printf("\n"); } } while (0)
-
-#define LINE_SIZE 1024
-#define CMD_SIZE 256
-#define USERNAME_SIZE 16
-#define HOSTNAME_SIZE 32
-
-void shutdown(int);
-void signal_handler(int);
-void chld_handler(int);
-
-static int debug = 0;
-static char sdown[CMD_SIZE];
-
-static void build_cmd(char *cmd, char *x, int len)
-{
-	int l;
-	char *c;
-
-	c = cmd + strlen(cmd);
-
-	/* skip spaces */
-	for (; *x && (*x == ' ' || *x == '\t'); x++); 
-
-	/* copy next arg */
-	for (l = 0; *x && *x != '#' && *x != '\t' && l < len; l++)
-		*c++ = *x++;
-	*c = 0;
-
-	_d("cmd = %s", cmd);
-}
-
-
-#ifdef LISTEN_INITCTL
-
-/* Standard reboot/shutdown utilities talk to init using /dev/initctl.
- * We should check if the fifo was recreated and reopen it.
- */
-static void listen_initctl()
-{
-	if (!fork()) {	
-		int ctl;	
-		fd_set fds;	
-		struct init_request request;
-
-		mkfifo("/dev/initctl", 0600);
-		ctl = open("/dev/initctl", O_RDONLY);
-
-		while (1) {
-			FD_ZERO(&fds);
-			FD_SET(ctl, &fds);
-			if (select(ctl + 1, &fds, NULL, NULL, NULL) <= 0)
-				continue;
-
-			read(ctl, &request, sizeof(request));
-
-			if (request.magic != INIT_MAGIC)
-				continue;
-
-			if (request.cmd == INIT_CMD_RUNLVL) {
-				switch (request.runlevel) {
-				case '0':
-					shutdown(SIGUSR2);
-					break;
-				case '6':
-					shutdown(SIGUSR1);
-				}
-			}
-		}
-	}
-}
-#endif
-
-
-int main()
-{
-	int i;
-	FILE *f;
-	char line[LINE_SIZE];
-	struct sigaction sa, act;
-	sigset_t nmask, nmask2;
-	char username[USERNAME_SIZE] = DEFUSER;
-	char hostname[HOSTNAME_SIZE] = "eviltwin";
-	char cmd[CMD_SIZE];
-	char startx[CMD_SIZE] = "xinit";
-#ifdef USE_ETC_RESOLVCONF_RUN
-	DIR *dir;
-	struct dirent *d;
-#endif
-#ifdef RUNLEVEL
-	struct utmp entry;
-#endif
-#ifdef PAM_CONSOLE
-	int fd;
-#endif
-
-	chdir("/");
-	umask(022);
-	
-	/*
-	 * Signal management
-	 */
-	for (i = 1; i < NSIG; i++)
-		SETSIG(sa, i, SIG_IGN, SA_RESTART);
-
-	SETSIG(sa, SIGINT,  shutdown, 0);
-	SETSIG(sa, SIGPWR,  SIG_IGN, 0);
-	SETSIG(sa, SIGUSR1, shutdown, 0);
-	SETSIG(sa, SIGUSR2, shutdown, 0);
-	SETSIG(sa, SIGTERM, SIG_IGN, 0);
-	SETSIG(sa, SIGALRM, SIG_IGN, 0);
-	SETSIG(sa, SIGHUP,  SIG_IGN, 0);
-	SETSIG(sa, SIGCONT, SIG_IGN, SA_RESTART);
-	SETSIG(sa, SIGCHLD, chld_handler, SA_RESTART);
-	
-	/* Block sigchild while forking */
-	sigemptyset(&nmask);
-	sigaddset(&nmask, SIGCHLD);
-	sigprocmask(SIG_BLOCK, &nmask, NULL);
-
-	reboot(RB_DISABLE_CAD);
-
-	mount("none", "/proc", "proc", 0, NULL);
-	mount("none", "/sys", "sysfs", 0, NULL);
-
-	/*
-	 * Parse kernel parameters
-	 */
-	if ((f = fopen("/proc/cmdline", "r")) != NULL) {
-		fgets(line, LINE_SIZE, f);
-		if ((strstr(line, "finit_debug"))) {
-			debug = 1;
-		}
-		if (strstr(line, "quiet")) {
-			close(0);
-			close(1);
-			close(2);
-		}
-		fclose(f);
-	}
-
-	_d("finit-alt " VERSION " (built " __DATE__ " " __TIME__ " by " WHOAMI ")");
-
-	setsid();
-
-	/*
-	 * Parse configuration file
-	 */
-	if ((f = fopen("/etc/finit.conf", "r")) != NULL) {
-		char *x;
-		while (!feof(f)) {
-			fgets(line, LINE_SIZE, f);
-			chomp(line);
-
-			_d("conf: %s", line);
-
-			/* Do this before mounting / read-write */
-			if (MATCH_CMD(line, "check ", x)) {
-				strcpy(cmd, "/sbin/fsck -C -a ");
-				build_cmd(cmd, x, CMD_SIZE);
-				system(cmd);
-				continue;
-			}
-			if (MATCH_CMD(line, "user ", x)) {
-				*username = 0;
-				build_cmd(username, x, USERNAME_SIZE);
-				continue;
-			}
-			if (MATCH_CMD(line, "startx ", x)) {
-				*startx = 0;
-				build_cmd(startx, x, CMD_SIZE);
-				continue;
-			}
-			if (MATCH_CMD(line, "host ", x)) {
-				*hostname = 0;
-				build_cmd(hostname, x, HOSTNAME_SIZE);
-				continue;
-			}
-			if (MATCH_CMD(line, "shutdown ", x)) {
-				*sdown = 0;
-				build_cmd(sdown, x, CMD_SIZE);
-				continue;
-			}
-			if (MATCH_CMD(line, "module ", x)) {
-				strcpy(cmd, "/sbin/modprobe ");
-				build_cmd(cmd, x, CMD_SIZE);
-				system(cmd);
-				continue;
-			}
-#ifdef MAKE_DEVICES
-			/* This is used if the system uses udev and doesn't
-			 * mount /dev as tmpfs in the initrd, or if it doesn't
-			 * use an initrd. Mount /dev as tmpfs and create basic
-			 * device nodes.
-			 */
-			if (MATCH_CMD(line, "mountdev", x)) {
-				mount("none", "/dev", "tmpfs", 0, "mode=0755");
-				chardev("/dev/null", 0666, 1, 3);
-				blkdev("/dev/sda1", 0660, 8, 1);
-				blkdev("/dev/sda2", 0660, 8, 2);
-				blkdev("/dev/sda3", 0660, 8, 3);
-				blkdev("/dev/sda4", 0660, 8, 4);
-				blkdev("/dev/sda5", 0660, 8, 5);
-				blkdev("/dev/sda6", 0660, 8, 6);
-#ifdef MAKE_DEV_VCS
-			/* Caio reports that newer X.org needs these */
-				blkdev("/dev/vcs1", 0660, 7, 1);
-				blkdev("/dev/vcs2", 0660, 7, 2);
-				blkdev("/dev/vcs3", 0660, 7, 3);
-				blkdev("/dev/vcs4", 0660, 7, 4);
-				blkdev("/dev/vcsa1", 0660, 7, 129);
-				blkdev("/dev/vcsa2", 0660, 7, 130);
-				blkdev("/dev/vcsa3", 0660, 7, 131);
-				blkdev("/dev/vcsa4", 0660, 7, 132);
-#endif
-				continue;
-			}
-			/* This works only if /dev is tmpfs! If not, create
-			 * devices statically on the filesystem
-			 */
-			if (MATCH_CMD(line, "mknod ", x)) {
-				strcpy(cmd, "/bin/mknod ");
-				build_cmd(cmd, x, CMD_SIZE);
-				system(cmd);
-				continue;
-			}
-#endif
-		}
-		fclose(f);
-	}
-
-	/*
-	 * Mount filesystems
-	 */
-	_d("mount filesystems");
-
-#ifdef REMOUNT_ROOTFS_RW
-	system("/bin/mount -n -o remount,rw /");
-#endif
-	umask(0);
-
-#ifdef MAKE_DEVICES
-	mkdir("/dev/shm", 0755);
-	mkdir("/dev/pts", 0755);
-#endif
-
-	mount("none", "/dev/pts", "devpts", 0, "gid=5,mode=620");
-	mount("none", "/dev/shm", "tmpfs", 0, NULL);
-	mount("none", "/tmp", "tmpfs", 0, "mode=1777,size=128m");
-	mount("none", "/var/run", "tmpfs", 0, "mode=0755");
-	mount("none", "/var/lock", "tmpfs", 0, "mode=1777");
-	mount("none", "/proc/bus/usb", "usbfs", 0, NULL);
-	mount(SYSROOT, "/", NULL, MS_MOVE, NULL);
-
-	_d("make devices");
-#ifdef MAKE_DEVICES
-	mkdir("/dev/input", 0755);
-	chardev("/dev/urandom", 0666, 1, 9);
-	chardev("/dev/ptmx", 0666, 5, 2);
-	chardev("/dev/null", 0666, 1, 3);
-	chmod("/dev/null", 0666);
-	chardev("/dev/mem",  0640, 1, 1);
-	chardev("/dev/tty0",  0660, 4, 0);
-	chardev("/dev/tty1",  0660, 4, 1);
-	chardev("/dev/tty2",  0660, 4, 2);
-	chardev("/dev/tty3",  0660, 4, 3);
-	chardev("/dev/input/mice",  0660, 13, 63);
-	chardev("/dev/input/event0",  0660, 13, 64);
-	chardev("/dev/agpgart",  0660, 10, 175);
-	blkdev("/dev/loop0",  0600, 7, 0);
-#endif
-
-	unlink("/etc/mtab");
-	system("mount -a");
-
-	umask(0022);
-
-	/*
-	 * Time adjustments
-	 */
-	_d("adjust clock");
-#ifndef NO_HCTOSYS
-	system("/sbin/hwclock --hctosys" HWCLOCK_DIRECTISA);
-#endif
-
-	/*
-	 * Network stuff
-	 */
-
-#ifdef USE_ETC_RESOLVCONF_RUN
-	makepath("/dev/shm/network");
-	makepath("/dev/shm/resolvconf/interface");
-
-	if ((dir = opendir("/etc/resolvconf/run/interface")) != NULL) {
-		while ((d = readdir(dir)) != NULL) {
-			if (isalnum(d->d_name[0]))
-				continue;
-			snprintf(line, LINE_SIZE,
-				"/etc/resolvconf/run/interface/%s", d->d_name);
-			unlink(line);
-		}
-
-		closedir(dir);
-	}
-#endif
-
-#ifdef USE_VAR_RUN_RESOLVCONF
-	makepath("/var/run/resolvconf/interface");
-	symlink("../../../etc/resolv.conf", "/var/run/resolvconf/resolv.conf");
-#endif
-
-	touch("/var/run/utmp");
-	chown("/var/run/utmp", 0, getgroup("utmp"));
-	chmod("/var/run/utmp", 0664);
-
-#ifdef RUNLEVEL
-	memset(&entry, 0, sizeof(struct utmp));
-	entry.ut_type = RUN_LVL;
-	entry.ut_pid = '0' + RUNLEVEL;
-	setutent();
-	pututline(&entry);
-	endutent();
-#endif
-
-#ifdef USE_ETC_RESOLVCONF_RUN
-	touch("/etc/resolvconf/run/enable-updates");
-
-	chdir("/etc/resolvconf/run/interface");
-#ifdef BUILTIN_RUNPARTS
-	run_parts("/etc/resolvconf/update.d", "-i", NULL);
-#else
-	system(RUNPARTS " --arg=i /etc/resolvconf/update.d");
-#endif
-	chdir("/");
-#endif
-	
-#ifdef TOUCH_ETC_NETWORK_RUN_IFSTATE
-	touch("/etc/network/run/ifstate");
-#endif
-
-	if ((f = fopen("/etc/hostname", "r")) != NULL) {
-		fgets(hostname, HOSTNAME_SIZE, f);	
-		chomp(hostname);
-		fclose(f);
-	}
-
-	sethostname(hostname, strlen(hostname)); 
-
-	ifconfig("lo", "127.0.0.1", "255.0.0.0", 1);
-
-	/*
-	 * Set random seed
-	 */
-	copyfile(RANDOMSEED, "/dev/urandom", 0);
-	unlink(RANDOMSEED);
-	umask(077);
-	copyfile("/dev/urandom", RANDOMSEED, 4096);
-	umask(0);
-
-	/*
-	 * Console setup (for X)
-	 */
-	makepath("/var/run/console");
-	snprintf(line, LINE_SIZE, "/var/run/console/%s", username);
-	touch(line);
-
-#ifdef PAM_CONSOLE
-	if ((fd = open("/var/run/console/console.lock", O_CREAT|O_WRONLY|O_TRUNC, 0644)) >= 0) {
-		write(fd, username, strlen(username));
-		close(fd);
-		system("/sbin/pam_console_apply");
-	}
-#endif
-
-	/*
-	 * Misc setup
-	 */
-	mkdir("/tmp/.X11-unix", 01777);
-	mkdir("/tmp/.ICE-unix", 01777);
-	umask(022);
-
-	system(GETTY "&");
-
-	_d("forking");
-	if (!fork()) {
-		/* child process */
-
-		vhangup();
-
-		close(2);
-		close(1);
-		close(0);
-
-		if (open("/dev/tty1", O_RDWR) != 0)
-			exit(1);
-
-		sigemptyset(&act.sa_mask);
-		act.sa_handler = SIG_DFL;
-
-		sigemptyset(&nmask2);
-		sigaddset(&nmask2, SIGCHLD);
-		sigprocmask(SIG_UNBLOCK, &nmask2, NULL);
-
-		for (i = 1; i < NSIG; i++)
-			sigaction(i, &sa, NULL);
-
-		dup2(0, 0);
-		dup2(0, 1);
-		dup2(0, 2);
-
-#ifdef USE_MESSAGE_BUS
-		_d("dbus");
-		mkdir("/var/run/dbus", 0755);
-		mkdir("/var/lock/subsys/messagebus", 0755);
-		system("dbus-uuidgen --ensure;dbus-daemon --system");
-#endif
-
-#ifdef LISTEN_INITCTL
-		listen_initctl();
-#endif
-
-		/* Prevents bash from running loadkeys */
-		unsetenv("TERM");
-
-		/* ConsoleKit needs this */
-		setenv("DISPLAY", ":0", 1);
-
-		while (access("/tmp/shutdown", F_OK) < 0) {
-			_d("start X as %s\n", username);
-			if (debug) {
-				snprintf(line, LINE_SIZE,
-					"su -l %s -c \"%s\"", username, startx);
-				system(line);
-				system("/bin/sh");
-			} else {
-				snprintf(line, LINE_SIZE,
-					"su -l %s -c \"%s\" &> /dev/null",
-					username, startx);
-				system(line);
-			}
-		}
-
-		exit(0);
-	}
-	
-	/* parent process */
-
-	
-	/* sleep(1); */
-	system("/usr/sbin/services.sh &>/dev/null&");
-
-	while (1) {
-		sigemptyset(&nmask);
-		pselect(0, NULL, NULL, NULL, NULL, &nmask);
-	}
-}
-
-
-/*
- * Shut down on INT USR1 USR2
- */
-void shutdown(int sig)
-{
-	touch("/tmp/shutdown");
-	if (sdown) {
-		system(sdown);
-	}
-
-	kill(-1, SIGTERM);
-
-	write(1, "\033[?25l\033[30;40m", 14);
-	copyfile("/boot/shutdown.fb", "/dev/fb/0", 0);
-	sleep(2);
-
-	system("/usr/sbin/alsactl store > /dev/null 2>&1");
-	system("/sbin/hwclock --systohc" HWCLOCK_DIRECTISA);
-
-	kill(-1, SIGKILL);
-
-	sync();
-	sync();
-	system("/bin/umount -a;/bin/mount -n -o remount,ro /");
-	//system("/sbin/unionctl.static / --remove / > /dev/null 2>&1");
-
-	if (sig == SIGINT || sig == SIGUSR1)
-		reboot(RB_AUTOBOOT);
-
-	reboot(RB_POWER_OFF);
-}
-
-
-/*
- * SIGCHLD: one of our children has died
- */
-void chld_handler(int sig)
-{
-	int status;
-
-	while (waitpid(-1, &status, WNOHANG) != 0) {
-		if (errno == ECHILD)
-			break;
-	}
-}
-

finit-mod.c

@@ -1,322 +0,0 @@
-/*
-Improved fast init
-
-Copyright (c) 2008 Claudio Matsuoka
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
-/*
-
-Changelog from the original Eeepc fastinit:
-
-- Use mknod() instead of close(open()) call to create empty file
-- Fix random seed initialization
-- Don't try to handle signal 0, SIGKILL or SIGSTOP
-- Implement makepath() to avoid system("mkdir -p")
-- Omit first hwclock if user has CONFIG_RTC_HCTOSYS in kernel (by Metalshark)
-- Add –directisa to hwclock if user has disabled CONFIG_GENRTC and enabled
-  CONFIG_RTC but not CONFIG_HPET_TIMER and CONFIG_HPET_RTC_IRQ (by Metalshark)
-- Drop system() call to clean /tmp, it's a fresh mounted tmpfs
-- Set loopback interface using direct calls instead of system("ifconfig")
-- Copy 4096 data block in C instead of system("cat") or system("dd")
-- Draw shutdown splash screen using C calls instead of system("echo;cat")
-- Change poweroff method to reboot(RB_POWER_OFF) (by Metalshark)
-- Mount /var/run and /var/lock as tmpfs
-- Use SIG_IGN instead of empty signal handler (by Metalshark)
-- Add built-in run-parts option to be used instead of system("run-parts")
-- Reuse cmdline buffer as hostname and filename buffers
-- Open terminal in vt2 using openvt
-
-*/
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <sys/mount.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <dirent.h>
-#include <errno.h>
-#include <signal.h>
-#include <unistd.h>
-#include <sys/reboot.h>
-#include <sys/wait.h>
-#include <linux/fs.h>
-
-#include "helpers.h"
-
-#ifdef DIRECTISA
-#define HWCLOCK_DIRECTISA " --directisa"
-#else
-#define HWCLOCK_DIRECTISA
-#endif
-
-
-/* From sysvinit */
-/* Set a signal handler. */
-#define SETSIG(sa, sig, fun, flags) \
-		do { \
-			sa.sa_handler = fun; \
-			sa.sa_flags = flags; \
-			sigemptyset(&sa.sa_mask); \
-			sigaction(sig, &sa, NULL); \
-		} while (0)
-
-#define touch(x) mknod((x), S_IFREG|0644, 0)
-
-#define LINE_SIZE 1024
-
-void shutdown(int);
-void chld_handler(int);
-
-
-int main()
-{
-	int i;
-	FILE *f;
-	char line[LINE_SIZE];
-	int fd;
-	DIR *dir;
-	struct dirent *d;
-	struct sigaction sa, act;
-	char *x;
-	sigset_t nmask, nmask2;
-
-	puts("finit-mod " VERSION " (built " __DATE__ " " __TIME__
-						" by " WHOAMI ")");
-
-	chdir("/");
-	umask(022);
-	
-	/*
-	 * Signal management
-	 */
-	for (i = 1; i < NSIG; i++)
-		SETSIG(sa, i, SIG_IGN, SA_RESTART);
-
-	SETSIG(sa, SIGINT,  shutdown, 0);
-	SETSIG(sa, SIGPWR,  SIG_IGN, 0);
-	SETSIG(sa, SIGUSR1, shutdown, 0);
-	SETSIG(sa, SIGUSR2, shutdown, 0);
-	SETSIG(sa, SIGTERM, SIG_IGN, 0);
-	SETSIG(sa, SIGALRM, SIG_IGN, 0);
-	SETSIG(sa, SIGHUP,  SIG_IGN, 0);
-	SETSIG(sa, SIGCONT, SIG_IGN, SA_RESTART);
-	SETSIG(sa, SIGCHLD, chld_handler, SA_RESTART);
-	
-	/* Block sigchild while forking */
-	sigemptyset(&nmask);
-	sigaddset(&nmask, SIGCHLD);
-	sigprocmask(SIG_BLOCK, &nmask, NULL);
-
-	reboot(RB_DISABLE_CAD);
-
-	/*
-	 * Parse kernel parameters
-	 */
-	if ((f = fopen("/proc/cmdline", "r")) != NULL) {
-		fgets(line, LINE_SIZE, f);
-		if (strstr(line, "quiet")) {
-			close(0);
-			close(1);
-			close(2);
-		}
-		fclose(f);
-	}
-
-	setsid();
-
-	/*
-	 * Mount filesystems
-	 */
-	mount("proc", "/proc", "proc", 0, NULL);
-	mount("sysfs", "/sys", "sysfs", 0, NULL);
-	mount("devpts", "/dev/pts", "devpts", 0, "gid=5,mode=620");
-	mount("tmpfs", "/dev/shm", "tmpfs", 0, NULL);
-	mount("tmpfs", "/tmp", "tmpfs", 0, "mode=1777,size=128m");
-	mount("tmpfs", "/var/run", "tmpfs", 0, "mode=0755");
-	mount("tmpfs", "/var/lock", "tmpfs", 0, "mode=1777");
-	mount("/mnt", "/", NULL, MS_MOVE, NULL);
-
-	/*
-	 * Time adjustments
-	 */
-	if ((fd = open("/etc/adjtime", O_CREAT|O_WRONLY|O_TRUNC, 0644)) >= 0) {
-		write(fd, "0.0 0 0.0\n", 10);
-		close(fd);
-	}
-#ifndef NO_HCTOSYS
-	system("/sbin/hwclock --hctosys --localtime" HWCLOCK_DIRECTISA);
-#endif
-
-	/*
-	 * Network stuff
-	 */
-	makepath("/dev/shm/network");
-	makepath("/dev/shm/resolvconf/interface");
-
-	if ((dir = opendir("/etc/resolvconf/run/interface")) != NULL) {
-		while ((d = readdir(dir)) != NULL) {
-			if (isalnum(d->d_name[0]))
-				continue;
-			snprintf(line, LINE_SIZE,
-				"/etc/resolvconf/run/interface/%s", d->d_name);
-			unlink(line);
-		}
-
-		closedir(dir);
-	}
-
-	touch("/var/run/utmp");
-	touch("/etc/resolvconf/run/enable-updates");
-
-	chdir("/etc/resolvconf/run/interface");
-#ifdef BUILTIN_RUNPARTS
-	run_parts("/etc/resolvconf/update.d", "-i", NULL);
-#else
-	system("/bin/run-parts --arg=-i /etc/resolvconf/update.d");
-#endif
-	chdir("/");
-	
-	touch("/etc/network/run/ifstate");
-
-	if ((f = fopen("/etc/hostname", "r")) != NULL) {
-		fgets(line, LINE_SIZE, f);	
-		if ((x = strchr(line, 0x0a)) != NULL)
-			*x = 0;
-
-		sethostname(line, strlen(line)); 
-		fclose(f);
-		
-	}
-
-	ifconfig("lo", "127.0.0.1", "255.0.0.0", 1);
-
-	/*
-	 * Set random seed
-	 */
-	copyfile("/var/lib/urandom/random-seed", "/dev/urandom", 0);
-	unlink("/var/lib/urandom/random-seed");
-	umask(077);
-	copyfile("/dev/urandom", "/var/lib/urandom/random-seed", 4096);
-
-	/*
-	 * Misc setup
-	 */
-	unlink("/var/run/.clean");
-	unlink("/var/lock/.clean");
-	umask(0);
-	mkdir("/tmp/.X11-unix", 01777);
-	mkdir("/tmp/.ICE-unix", 01777);
-	umask(022);
-
-	system("/usr/bin/openvt /sbin/getty 38400 tty2&");
-
-	if (!fork()) {
-		/* child process */
-
-		vhangup();
-
-		close(2);
-		close(1);
-		close(0);
-
-		if (open("/dev/tty1", O_RDWR) != 0)
-			exit(1);
-
-		sigemptyset(&act.sa_mask);
-		act.sa_handler = SIG_DFL;
-
-		sigemptyset(&nmask2);
-		sigaddset(&nmask2, SIGCHLD);
-		sigprocmask(SIG_UNBLOCK, &nmask2, NULL);
-
-		for (i = 1; i < NSIG; i++)
-			sigaction(i, &sa, NULL);
-
-		dup2(0, 0);
-		dup2(0, 1);
-		dup2(0, 2);
-
-		touch("/tmp/nologin");
-		
-		while (access("/tmp/shutdown", F_OK) < 0)
-			system("su -c startx -l user &> /dev/null");
-
-		exit(0);
-	}
-	
-	/* parent process */
-
-	sleep(1);
-	system("/usr/sbin/services.sh &>/dev/null&");
-
-	while (1) {
-		sigemptyset(&nmask);
-		pselect(0, NULL, NULL, NULL, NULL, &nmask);
-	}
-}
-
-
-/*
- * Shut down on INT USR1 USR2
- */
-void shutdown(int sig)
-{
-	touch("/tmp/shutdown");
-
-	kill(-1, SIGTERM);
-
-	write(1, "\033[?25l\033[30;40m", 14);
-	copyfile("/boot/shutdown.fb", "/dev/fb/0", 0);
-	sleep(2);
-
-	system("/usr/sbin/alsactl store > /dev/null 2>&1");
-	system("/sbin/hwclock --systohc --localtime" HWCLOCK_DIRECTISA);
-
-	kill(-1, SIGKILL);
-
-	sync();
-	sync();
-	system("/bin/mount -n -o remount,ro /");
-	system("/sbin/unionctl.static / --remove / > /dev/null 2>&1");
-
-	if (sig == SIGINT || sig == SIGUSR1)
-		reboot(RB_AUTOBOOT);
-
-	reboot(RB_POWER_OFF);
-}
-
-
-/*
- * SIGCHLD: one of our children has died
- */
-void chld_handler(int sig)
-{
-	int status;
-
-	while (waitpid(-1, &status, WNOHANG) != 0) {
-		if (errno == ECHILD)
-			break;
-	}
-}
-

finit.c

@@ -1,282 +1,213 @@
+/* Finit - Extremely fast /sbin/init replacement w/ I/O, hook & service plugins
+ *
+ * Copyright (c) 2008-2010  Claudio Matsuoka <cmatsuoka@gmail.com>
+ * Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <ctype.h>
 #include <sys/mount.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
+#include <ctype.h>
 #include <dirent.h>
-#include <errno.h>
-#include <signal.h>
-#include <unistd.h>
-#include <sys/reboot.h>
-#include <sys/wait.h>
-#include <linux/fs.h>
+#include <sys/stat.h>		/* umask(), mkdir() */
+
+#include "finit.h"
+#include "helpers.h"
+#include "private.h"
+#include "plugin.h"
+#include "svc.h"
+#include "sig.h"
+#include "lite.h"
+
+int   debug    = 0;
+int   verbose  = 1;
+char *sdown    = NULL;
+char *network  = NULL;
+char *username = NULL;
+char *hostname = NULL;
+char *rcsd     = FINIT_RCSD;
 
 
-/* From sysvinit */
-/* Set a signal handler. */
-#define SETSIG(sa, sig, fun, flags) \
-		do { \
-			sa.sa_handler = fun; \
-			sa.sa_flags = flags; \
-			sigemptyset(&sa.sa_mask); \
-			sigaction(sig, &sa, NULL); \
-		} while(0)
-
-#define touch(x) close(open((x), O_CREAT|O_WRONLY|O_TRUNC, 0644))
-
-
-void shutdown(int);
-void signal_handler(int);
-void chld_handler(int);
-
-
-int main()
+static void parse_kernel_cmdline(void)
 {
-	int i;
-	FILE *f;
-	char line[2096];
-	int fd;
-	DIR *dir;
-	struct dirent *d;
-	char filename[1024];
-	struct sigaction sa, act;
-	char hline[1024];
-	char *x;
-	sigset_t nmask, nmask2;
+	FILE *fp;
+	char line[LINE_SIZE];
 
-	chdir("/");
-	umask(022);
-	
+	if ((fp = fopen("/proc/cmdline", "r")) != NULL) {
+		fgets(line, sizeof(line), fp);
+		_d("Kernel command line: %s", line);
+
+		if (strstr(line, "finit_debug") || strstr(line, "--debug"))
+			debug = 1;
+
+		if (!debug && strstr(line, "quiet"))
+			verbose = 0;
+
+		fclose(fp);
+	}
+}
+
+static int run_loop(void)
+{
+	while (1) {
+		svc_monitor();
+		plugin_monitor();
+	}
+
+	return 0;
+}
+
+int main(int UNUSED(args), char *argv[])
+{
 	/*
-	 * Signal management
+	 * Initial setup of signals, ignore all until we're up.
 	 */
-	for (i = 1; i < NSIG; i++)
-		SETSIG(sa, i, SIG_IGN, SA_RESTART);
+	sig_init();
 
-	SETSIG(sa, SIGINT,  shutdown,       0);
-	SETSIG(sa, SIGPWR,  signal_handler, 0);
-	SETSIG(sa, SIGUSR1, shutdown,       0);
-	SETSIG(sa, SIGUSR2, shutdown,       0);
-	SETSIG(sa, SIGTERM, signal_handler, 0);
-	SETSIG(sa, SIGKILL, signal_handler, 0);
-	SETSIG(sa, SIGALRM, signal_handler, 0);
-	SETSIG(sa, SIGHUP,  signal_handler, 0);
-	SETSIG(sa, SIGSTOP, signal_handler, SA_RESTART);
-	SETSIG(sa, SIGCONT, signal_handler, SA_RESTART);
-	SETSIG(sa, SIGCHLD, chld_handler,   SA_RESTART);
-	
-	/* Block sigchild while forking */
-	sigemptyset(&nmask);
-	sigaddset(&nmask, SIGCHLD);
-	sigprocmask(SIG_BLOCK, &nmask, NULL);
-
-	reboot(RB_DISABLE_CAD);
+	/*
+	 * Mount base file system, kernel is assumed to run devtmpfs for /dev
+	 */
+	chdir("/");
+	umask(0);
+	mount("none", "/proc", "proc", 0, NULL);
+	mount("none", "/proc/bus/usb", "usbfs", 0, NULL);
+	mount("none", "/sys", "sysfs", 0, NULL);
+	mkdir("/dev/pts", 0755);
+	mkdir("/dev/shm", 0755);
+	mount("none", "/dev/pts", "devpts", 0, "gid=5,mode=620");
+	mount("none", "/dev/shm", "tmpfs", 0, NULL);
+	umask(022);
 
 	/*
 	 * Parse kernel parameters
 	 */
-	if ((f = fopen("/proc/cmdline", "r")) != NULL) {
-		fgets(line, 2095, f);
-		if (strstr(line, "quiet")) {
-			close(0);
-			close(1);
-			close(2);
-		}
-		fclose(f);
-	}
+	parse_kernel_cmdline();
 
-	setsid();
+	cls();
+	echo("finit " VERSION " (built " __DATE__ " " __TIME__ " by " WHOAMI ")");
+
+	/*
+	 * Populate /dev and prepare for runtime events from kernel.
+	 */
+#if defined(USE_UDEV)
+	run_interactive("udevd --daemon", "Populating device tree");
+#elif defined (MDEV)
+	run_interactive(MDEV " -s", "Populating device tree");
+#endif
+
+	/*
+	 * Parse configuration file
+	 */
+	parse_finit_conf(FINIT_CONF);
+
+	/*
+	 * Load plugins.  Must run after finit.conf has registered
+	 * all services, or service plugins won't have anything to
+	 * hook on to.
+	 */
+	print_desc("", "Loading plugins");
+	print_result(plugin_load_all(PLUGIN_PATH));
 
 	/*
 	 * Mount filesystems
 	 */
-	mount("proc", "/proc", "proc", 0, NULL);
-	mount("sysfs", "/sys", "sysfs", 0, NULL);
-	mount("devpts", "/dev/pts", "devpts", 0, "gid=5,mode=620");
-	mount("tmpfs", "/dev/shm", "tmpfs", 0, NULL);
-	mount("tmpfs", "/tmp", "tmpfs", 0, "mode=1777,size=128m");
-	mount("/mnt", "/", NULL, MS_MOVE, NULL);
+	_d("Mount filesystems in /etc/fstab ...");
+
+#ifdef REMOUNT_ROOTFS_RW
+	run("/bin/mount -n -o remount,rw /");
+#endif
+#ifdef SYSROOT
+	run(SYSROOT, "/", NULL, MS_MOVE, NULL);
+#endif
+	_d("Root FS up, calling hooks ...");
+	plugin_run_hooks(HOOK_ROOTFS_UP);
+
+	umask(0);
+	run("/bin/mount -na");
+	run("/sbin/swapon -ea");
+	umask(0022);
+
+	/* Cleanup stale files, if any still linger on. */
+	run_interactive("rm -rf /tmp/* /var/run/* /var/lock/*", "Cleanup temporary directories");
 
 	/*
-	 * Time adjustments
+	 * Base FS up, enable standard SysV init signals
 	 */
-	if ((fd = open("/etc/adjtime", O_CREAT|O_WRONLY|O_TRUNC, 0644)) >= 0) {
-		write(fd, "0.0 0 0.0\n", 10);
-		close(fd);
-	}
-	system("/sbin/hwclock --hctosys --localtime");
+	sig_setup();
+
+	_d("Base FS up, calling hooks ...");
+	plugin_run_hooks(HOOK_BASEFS_UP);
 
 	/*
 	 * Network stuff
 	 */
-	system("mkdir -p /dev/shm/network");
-	system("mkdir -p /dev/shm/resolvconf/interface");
 
-	if ((dir = opendir("/etc/resolvconf/run/interface")) != NULL) {
-		while ((d = readdir(dir)) != NULL) {
-			if (isalnum(d->d_name[0]))
-				continue;
-			sprintf(filename, "/etc/resolvconf/run/interface/%s",
-								d->d_name);
-			unlink(filename);
-		}
+	/* Setup kernel specific settings, e.g. allow broadcast ping, etc. */
+	run("/sbin/sysctl -e -p /etc/sysctl.conf >/dev/null");
 
-		closedir(dir);
-	}
+	/* Set initial hostname. */
+	set_hostname(hostname);
 
-	touch("/var/run/utmp");
-	touch("/etc/resolvconf/run/enable-updates");
-
-	chdir("/etc/resolvconf/run/interface");
-	system("/bin/run-parts --arg=-i /etc/resolvconf/update.d");
-	chdir("/");
-	
-	touch("/etc/network/run/ifstate");
-
-	if ((f = fopen("/etc/hostname", "r")) != NULL) {
-		fgets(hline, 1023, f);	
-		if ((x = strchr(hline, 0x0a)) != NULL)
-			*x = 0;
-
-		sethostname(hline, strlen(hline)); 
-		fclose(f);
-		
-	}
-
-	system("/sbin/ifconfig lo 127.0.0.1 netmask 255.0.0.0 up > /dev/null");
-
-	/*
-	 * Set random seed
-	 */
-	/* Bug: the eeepc never sets its random seed from file */
-	system("/bin/cat /var/lib/urandom/random-seed >/dev/urandom "
-						"> /dev/null 2>&1");
-	unlink("/var/lib/urandom/random-seed");
-
-	umask(077);
-	system("/bin/dd if=/dev/urandom of=/var/lib/urandom/random-seed "
-					"bs=4096 count=1 >/dev/null 2>&1");
-
-	/*
-	 * Misc setup
-	 */
-	/* not really needed, /tmp is a fresh mounted tmpfs */
-	system("/bin/rm -rf /tmp/* /tmp/.* 2>/dev/null");
-
-	unlink("/var/run/.clean");
-	unlink("/var/lock/.clean");
-	umask(0);
-	mkdir("/tmp/.X11-unix", 01777);
-	mkdir("/tmp/.ICE-unix", 01777);
+	ifconfig("lo", "127.0.0.1", "255.0.0.0", 1);
+	if (network)
+		run_interactive(network, "Starting networking: %s", network);
 	umask(022);
 
-	if (!fork()) {
-		/* child process */
+	/*
+	 * Hooks that rely on loopback, or basic networking being up.
+	 */
+	plugin_run_hooks(HOOK_NETWORK_UP);
 
-		vhangup();
+	/*
+	 * Start service monitor framework
+	 */
+	_d("Starting all static services from %s", FINIT_CONF);
+	svc_start_all();
 
-		close(2);
-		close(1);
-		close(0);
-
-		if (open("/dev/tty1", O_RDWR, 0))
-			exit(1);
-
-		sigemptyset(&act.sa_mask);
-		act.sa_handler = SIG_DFL;
-
-		sigemptyset(&nmask2);
-		sigaddset(&nmask2, SIGCHLD);
-		sigprocmask(SIG_UNBLOCK, &nmask2, NULL);
-
-		/* Bug: no signal 0 */
-		for (i = 0; i < NSIG; i++)
-			sigaction(i, &sa, NULL);
-
-		dup2(0, 0);
-		dup2(0, 1);
-		dup2(0, 2);
-
-		touch("/tmp/nologin");
-		
-		while (access("/tmp/shutdown", F_OK) < 0)
-			system("su -c startx -l user &> /dev/null");
-
-		exit(0);
+	/*
+	 * Run startup scripts in /etc/finit.d/, if any.
+	 */
+	if (rcsd && fisdir(rcsd)) {
+		_d("Running startup scripts in %s ...", rcsd);
+		run_parts(rcsd, NULL);
 	}
-	
-	/* parent process */
 
-	system("/sbin/getty 38400 tty3 &");
-	sleep(1);
-	system("/usr/sbin/services.sh &> /dev/null &");
+	/*
+	 * Hooks that should run at the very end
+	 */
+	plugin_run_hooks(HOOK_SYSTEM_UP);
 
-	while (1) {
-		sigemptyset(&nmask);
-		pselect(0, NULL, NULL, NULL, NULL, &nmask);
-	}
+	/* Start GETTY on console */
+	_d("Starting getty on console ...");
+	run_getty(GETTY, argv);
+
+	/*
+	 * Enter main loop to monior /dev/initctl and services
+	 */
+	_d("Entering main loop ...");
+	return run_loop();
 }
 
-
-/*
- * Shut down on INT USR1 USR2
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
  */
-void shutdown(int sig)
-{
-	int fd;
-
-	system("/usr/bin/touch /tmp/shutdown");
-
-	kill(-1, SIGTERM);
-
-	system("/bin/echo -e \"\033[?25l\033[30;40m\"; "
-				"/bin/cp /boot/shutdown.fb /dev/fb/0");
-	sleep(1);
-	sleep(1);
-
-	system("/usr/sbin/alsactl store > /dev/null 2>&1");
-	system("/sbin/hwclock --systohc --localtime");
-
-	kill(-1, SIGKILL);
-
-	sync();
-	sync();
-	system("/bin/mount -n -o remount,ro /");
-	system("/sbin/unionctl.static / --remove / > /dev/null 2>&1");
-
-	if (sig == SIGINT || sig == SIGUSR1)
-		reboot(RB_AUTOBOOT);
-
-	if ((fd = open("/proc/acpi/sleep", O_WRONLY)) >= 0) {
-		write(fd, "5", 1);
-		close(fd);
-	}
-}
-
-
-/*
- * SIGCHLD: one of our children has died
- */
-void chld_handler(int sig)
-{
-	int status;
-
-	while (waitpid(-1, &status, WNOHANG) != 0) {
-		if (errno == ECHILD)
-			break;
-	}
-}
-
-
-/*
- * We got a signal (PWR TERM ALRM HUP STOP CONT)
- */
-void signal_handler(int sig)
-{
-	/* do nothing */
-}
-

finit.conf

@@ -1,6 +1,12 @@
-user fred
-module intel-agp
-module p4-clockmod
-check /dev/sda3
-host eviltwin
-startx /usr/bin/startx
+# Simple Debian finit.conf
+check /dev/vda1
+module evdev
+module loop
+module psmouse
+user admin
+host testbed
+network service networking start
+service /sbin/klogd -n -- Kernel logging server
+service /sbin/syslogd -n -- Syslog server
+service /usr/sbin/sshd -D -- OpenSSH server
+service /usr/sbin/gdm -- GNOME Display Manager

finit.h

@@ -0,0 +1,82 @@
+/* Finit - Extremely fast /sbin/init replacement w/ I/O, hook & service plugins
+ *
+ * Copyright (c) 2008-2010  Claudio Matsuoka <cmatsuoka@gmail.com>
+ * Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef FINIT_H_
+#define FINIT_H_
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+/* Distribution configuration */
+
+#if defined EMBEDDED_SYSTEM
+# define CONSOLE        "/dev/console"
+# define MDEV           "/sbin/mdev"
+# define GETTY          "/sbin/getty -L 115200 ttyS0 vt100"
+#else /* Debian/Ubuntu based distributions */
+# define RANDOMSEED	"/var/lib/urandom/random-seed"
+# define CONSOLE        "/dev/tty1"
+# define GETTY		"/sbin/getty -8 38400 tty1"
+# define REMOUNT_ROOTFS_RW
+# define RUNLEVEL	2
+# define USE_UDEV
+# define USE_MESSAGE_BUS
+#endif
+
+#ifndef DEFUSER
+# define DEFUSER "root"
+#endif
+#ifndef DEFHOST
+# define DEFHOST "noname"
+#endif
+
+#define CMD_SIZE  256
+#define LINE_SIZE 1024
+#define BUF_SIZE  4096
+#define USERNAME_SIZE 16
+#define HOSTNAME_SIZE 32
+
+extern char *sdown;
+extern char *network;
+extern char *hostname;
+extern char *username;
+extern char *rcsd;
+
+/* conf.c */
+void parse_finit_conf(char *file);
+
+#endif /* FINIT_H_ */
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

helpers.c

@@ -1,4 +1,28 @@
+/* Misc. utility functions and C-library extensions for finit and its plugins
+ *
+ * Copyright (c) 2008-2010  Claudio Matsuoka <cmatsuoka@gmail.com>
+ * Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 
+#include <ctype.h>		/* isdigit() */
 #include <string.h>
 #include <limits.h>
 #include <stdlib.h>
@@ -7,42 +31,56 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <sys/ioctl.h>
+#include <sys/prctl.h>
 #include <sys/socket.h>
 #include <net/if.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
 
-#ifdef BUILTIN_RUNPARTS
 #include <dirent.h>
 #include <stdarg.h>
 #include <sys/wait.h>
-#endif
 
 #include <grp.h>
+#include <pwd.h>
 
+#include "finit.h"
 #include "helpers.h"
+#include "private.h"
+#include "sig.h"
+#include "lite.h"
+
+#define NUM_ARGS    16
+#define NUM_SCRIPTS 128		/* ought to be enough for anyone */
 
 /*
  * Helpers to replace system() calls
  */
 
-int makepath(char *p)
+int makepath(char *path)
 {
-	char *x, path[PATH_MAX];
+	char buf[PATH_MAX];
+	char *x = buf;
 	int ret;
-	
-	x = path;
+
+	if (!path) {
+		errno = EINVAL;
+		return -1;
+	}
 
 	do {
-		do { *x++ = *p++; } while (*p && *p != '/');
+		do {
+			*x++ = *path++;
+		} while (*path && *path != '/');
+
 		*x = 0;
-		ret = mkdir(path, 0777);
-	} while (*p && (*p != '/' || *(p + 1))); /* ignore trailing slash */
+		ret = mkdir(buf, 0777);
+	} while (*path && (*path != '/' || *(path + 1))); /* ignore trailing slash */
 
 	return ret;
 }
 
-void ifconfig(char *name, char *inet, char *mask, int up)
+void ifconfig(char *ifname, char *addr, char *mask, int up)
 {
 	struct ifreq ifr;
 	struct sockaddr_in *a = (struct sockaddr_in *)&ifr.ifr_addr;
@@ -52,14 +90,18 @@ void ifconfig(char *name, char *inet, char *mask, int up)
 		return;
 
 	memset(&ifr, 0, sizeof (ifr));
-	strncpy(ifr.ifr_name, name, IFNAMSIZ);
-	a->sin_family = AF_INET;
+	strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
+	ifr.ifr_addr.sa_family = AF_INET;
 
 	if (up) {
-		inet_aton(inet, &a->sin_addr);
-		ioctl(sock, SIOCSIFADDR, &ifr);
-		inet_aton(mask, &a->sin_addr);
-		ioctl(sock, SIOCSIFNETMASK, &ifr);
+		if (addr) {
+			inet_aton(addr, &a->sin_addr);
+			ioctl(sock, SIOCSIFADDR, &ifr);
+		}
+		if (mask) {
+			inet_aton(mask, &a->sin_addr);
+			ioctl(sock, SIOCSIFNETMASK, &ifr);
+		}
 	}
 
 	ioctl(sock, SIOCGIFFLAGS, &ifr);
@@ -74,97 +116,530 @@ void ifconfig(char *name, char *inet, char *mask, int up)
 	close(sock);
 }
 
-#define BUF_SIZE 4096
 
-void copyfile(char *src, char *dst, int size)
+/**
+ * pidfile_read - Reads a PID value from a pidfile.
+ * @pidfile: File containing PID, usually in /var/run/<PROC>.pid
+ *
+ * This function takes a @pidfile and returns the PID found therein.
+ *
+ * Returns:
+ * On invalid @pidfile -1 and @errno set to %EINVAL, when @pidfile does not exist -1
+ * and errno set to %ENOENT.  When the pidfile is empty or when its contents cannot
+ * be translated this function returns zero (0), on success this function returns
+ * a PID value greater than one. PID 1 is reserved for the system init process.
+ */
+pid_t pidfile_read(char *pidfile)
 {
-	char buffer[BUF_SIZE];
-	int s, d, n;
+   pid_t pid = 0;
+   char buf[16];
+   FILE *fp;
 
-	/* Size == 0 means copy entire file */
-	if (size == 0)
-		size = INT_MAX;
+   if (!pidfile) {
+      errno = EINVAL;
+      return -1;
+   }
 
-	if ((s = open(src, O_RDONLY)) >= 0) {
-		if ((d = open(dst, O_WRONLY | O_CREAT, 0644)) >= 0) {
-			do {
-				int csize = size > BUF_SIZE ?  BUF_SIZE : size;
-		
-				if ((n = read(s, buffer, csize)) > 0)
-					write(d, buffer, n);
-				size -= csize;
-			} while (size > 0 && n == BUF_SIZE);
-			close(d);
-		}
-		close(s);
+   if (!fexist(pidfile))
+      return -1;
+
+   fp = fopen(pidfile, "r");
+   if (!fp)
+      return -1;
+
+   if (fgets(buf, sizeof(buf), fp)) {
+      errno = 0;
+      pid = strtoul(buf, NULL, 0);
+      if (errno)
+         pid = 0;               /* Failed conversion. */
+   }
+   fclose(fp);
+
+   return pid;
+}
+
+/**
+ * pidfile_poll - Poll for the existence of a pidfile and return PID
+ * @cmd:  Process name, or command, called to expect a pidfile
+ * @path: Path to pidfile to poll for
+ *
+ * This function polls for the pidfile at @path for at most 5 seconds
+ * before timing out. If the file is created within that time span the
+ * file is read and its PID contents returned.
+ *
+ * Returns:
+ * The PID read from @path, or zero on timeout.
+ */
+pid_t pidfile_poll(char *cmd, char *path)
+{
+	pid_t pid = 0;
+	int tries = 0;
+
+	/* Timeout = 100 * 50ms = 5s */
+	while (!fexist(path) && tries++ < 100) {
+		/* Wait 50ms between retries */
+		usleep(50000);
 	}
+
+	if (!fexist(path)) {
+		_e("Timeout! No PID found for %s, pidfile %s does not exist?", cmd, path);
+		pid = 0;
+	} else {
+		pid = pidfile_read(path);
+	}
+
+	return pid;
 }
 
-#ifdef BUILTIN_RUNPARTS
 
-#define NUM_SCRIPTS 128		/* ought to be enough for anyone */
-#define NUM_ARGS 16
-
-static int cmp(const void *s1, const void *s2)
+/**
+ * pid_alive - Check if a given process ID is running
+ * @pid: Process ID to check for.
+ *
+ * Returns:
+ * %TRUE(1) if pid is alive (/proc/pid exists), otherwise %FALSE(0)
+ */
+int pid_alive(pid_t pid)
 {
-	return strcmp(*(char **)s1, *(char **)s2);
+	char name[24]; /* Enough for max pid_t */
+
+	snprintf(name, sizeof(name), "/proc/%d", pid);
+
+	return fexist(name);
 }
 
-int run_parts(char *dir, ...)
+
+/**
+ * pid_get_name - Find name of a process
+ * @pid:  PID of process to find.
+ * @name: Pointer to buffer where to return process name, may be %NULL
+ * @len:  Length in bytes of @name buffer.
+ *
+ * If @name is %NULL, or @len is zero the function will return
+ * a static string.  This may be useful to one-off calls.
+ *
+ * Returns:
+ * %NULL on error, otherwise a va
+ */
+char *pid_get_name(pid_t pid, char *name, size_t len)
 {
-	DIR *d;
-	struct dirent *e;
-	struct stat st;
-	char *ent[NUM_SCRIPTS];
-	int i, num = 0, argnum = 1;
-	char *args[NUM_ARGS];
-	va_list ap;
+	int ret = 1;
+	FILE *fp;
+	char path[32];
+	static char line[64];
 
-	if (chdir(dir))
-		return -1;
+	if (!name || len == 0)
+		name = line;
 
-	if ((d = opendir(dir)) == NULL)
-		return -1;
+	snprintf(path, sizeof(path), "/proc/%d/status", pid);
+	if ((fp = fopen(path, "r")) != NULL) {
+		if (fgets(line, sizeof (line), fp)) {
+			char *pname = line + 6; /* Skip first part of line --> "Name:\t" */
 
-	va_start(ap, dir);
-	while (argnum < NUM_ARGS && (args[argnum++] = va_arg(ap, char *)));
-	va_end(ap);
+			chomp(pname);
+			strlcpy(name, pname, len);
+			ret = 0;		 /* Found it! */
+		}
 
-	while ((e = readdir(d))) {
-		if (e->d_type == DT_REG && stat(e->d_name, &st) == 0) {
-			if (st.st_mode & S_IXUSR) {
-				ent[num++] = strdup(e->d_name);
-				if (num >= NUM_SCRIPTS)
-					break;
+		fclose(fp);
+	}
+
+	if (ret)
+		return NULL;
+
+	return name;
+}
+
+
+/**
+ * procname_set - Change process name, as seen in process listnings
+ * @name: New name of process
+ * @args: The process' argv[] vector.
+ */
+void procname_set(char *name, char *args[])
+{
+	size_t len = strlen(args[0]) + 1; /* Include terminating '\0' */
+
+	prctl(PR_SET_NAME, name, 0, 0, 0);
+	memset(args[0], 0, len);
+	strlcpy(args[0], name, len);
+}
+
+/**
+ * procname_kill - Send a signal to a process group by name.
+ * @name: Name of process to send signal to.
+ * @signo: Signal to send.
+ *
+ * Send a signal to a running process (group). This function searches
+ * for a given process @name and sends a signal, @signo, to each
+ * process ID matching that @name.
+ *
+ * Returns:
+ * Number of signals sent, i.e. number of processes who have received the signal.
+ */
+int procname_kill (char *name, int signo)
+{
+	int result = 0;
+	char path[32], line[64];
+	FILE *fp;
+	DIR *dir;
+	struct dirent *entry;
+
+	dir = opendir("/proc");
+	if (!dir || !name) {
+		errno = EINVAL;
+		return 0;
+	}
+
+	while ((entry = readdir (dir)) != NULL) {
+		/* Skip non-process entries in /proc */
+		if (!isdigit (*entry->d_name))
+			continue;
+
+		snprintf (path, sizeof(path), "/proc/%s/status", entry->d_name);
+		/* Skip non-readable files (protected?) */
+		if ((fp = fopen (path, "r")) == NULL)
+			continue;
+
+		if (fgets (line, sizeof (line), fp)) {
+			char *pname = line + 6; /* Skip first part of line --> "Name:\t" */
+
+			if (strncmp(pname, name, strlen(pname) - 1) == 0) {
+				int error = errno;
+
+				if (kill(atoi(entry->d_name), signo)) {
+					FLOG_ERROR("Failed signalling(%d) %s: %s!", signo, name, strerror(error));
+				} else {
+					result++; /* Track number of processes we deliver the signal to. */
+				}
 			}
 		}
+
+		fclose(fp);
 	}
 
-	closedir(d);
+	closedir(dir);
 
-	if (num == 0)
-		return 0;
+	return result;
+}
 
-	qsort(ent, num, sizeof(char *), cmp);
+
+static int print_uptime(void)
+{
+#if defined(CONFIG_PRINTK_TIME)
+	FILE * uptimefile;
+	float num1, num2;
+	char uptime_str[30];
+
+	if((uptimefile = fopen("/proc/uptime", "r")) == NULL)
+		return 1;
+
+	fgets(uptime_str, 20, uptimefile);
+	fclose(uptimefile);
+
+	sscanf(uptime_str, "%f %f", &num1, &num2);
+	sprintf(uptime_str, "[ %.6f ]", num1);
+
+	write(STDERR_FILENO, uptime_str, strlen(uptime_str));
+#endif
+	return 0;
+}
+
+void print_desc(char *action, char *desc)
+{
+	const char home[] = "\r\e[K";
+	const char dots[] = " .....................................................................";
+
+	write(STDERR_FILENO, home, strlen(home));
+
+	print_uptime();
+
+	write(STDERR_FILENO, action, strlen(action));
+	write(STDERR_FILENO, desc, strlen(desc));
+	write(STDERR_FILENO, dots, 60 - strlen(desc) - strlen(action)); /* pad with dots. */
+}
+
+int print_result(int fail)
+{
+	if (fail)
+		fprintf(stderr, " \e[7m[FAIL]\e[0m\n");
+	else
+		fprintf(stderr, " \e[1m[ OK ]\e[0m\n");
+
+	return fail;
+}
+
+int run(char *cmd)
+{
+	int status, result, i = 0;
+	FILE *fp;
+	char *args[NUM_ARGS + 1], *arg, *backup;
+	pid_t pid;
+
+	/* We must create a copy that is possible to modify. */
+	backup = arg = strdup(cmd);
+	if (!arg)
+		return 1; /* Failed allocating a string to be modified. */
+
+	/* Split command line into tokens of an argv[] array. */
+	args[i++] = strsep(&arg, "\t ");
+	do {
+		/* Handle run("su -c \"dbus-daemon --system\" messagebus");
+		 *   => "su", "-c", "\"dbus-daemon --system\"", "messagebus" */
+		if (*arg == '\'' || *arg == '"') {
+			char *p, delim[2] = " ";
+
+			delim[0]  = arg[0];
+			args[i++] = arg++;
+			strsep(&arg, delim);
+			 p     = arg - 1;
+			*p     = *delim;
+			*arg++ = 0;
+		} else {
+			args[i++] = strsep(&arg, "\t ");
+		}
+	} while (arg && i < NUM_ARGS);
+	args[i] = NULL;
+#if 0
+	_e("Splitting: '%s' =>", cmd);
+	for (i = 0; args[i]; i++)
+		_e("\t%s", args[i]);
+#endif
+	if (i == NUM_ARGS && args[i]) {
+		_e("Command too long: %s", cmd);
+		free(backup);
+		errno = EOVERFLOW;
+		return 1;
+	}
+
+	fp = fopen("/dev/null", "w");
+	pid = fork();
+	if (0 == pid) {
+		int i;
+		struct sigaction sa;
+
+		/* Reset signal handlers that were set by the parent process */
+                for (i = 1; i < NSIG; i++)
+			DFLSIG(sa, i, 0);
+
+		/* Redirect stdio if the caller requested so. */
+		if (fp) {
+			int fd = fileno(fp);
+
+			dup2(fd, STDIN_FILENO);
+			dup2(fd, STDOUT_FILENO);
+			dup2(fd, STDERR_FILENO);
+		}
+
+		execvp(args[0], args);
+		_exit(1); /* Only if execv() fails. */
+	} else if (-1 == pid) {
+		_pe("%s", args[0]);
+		return -1;
+	}
+
+	if (waitpid(pid, &status, 0) == -1) {
+		if (errno == EINTR)
+			_e("Caught unblocked signal waiting for %s, aborting.", args[0]);
+		else if (errno == ECHILD)
+			_e("Caught SIGCHLD waiting for %s, aborting.", args[0]);
+		else
+			_e("Failed starting %s, error %d: %s", args[0], errno, strerror (errno));
+
+		if (fp) fclose(fp);
+		free(backup);
+
+		return 1;
+	}
+
+	result = WEXITSTATUS(status);
+	if (WIFEXITED(status)) {
+		_d("Started %s and ended OK: %d", args[0], result);
+	} else if (WIFSIGNALED(status)) {
+		_d("Process %s terminated by signal %d", args[0], WTERMSIG(status));
+		if (!result)
+			result = 1; /* Must alert callee that the command did complete successfully.
+				     * This is necessary since not all programs trap signals and
+				     * change their return code accordingly. --Jocke */
+	}
+
+	if (fp) fclose(fp);
+	free(backup);
+
+	return result;
+}
+
+int run_interactive(char *cmd, char *fmt, ...)
+{
+	int status, oldout = 1, olderr = 2;
+	char line[LINE_SIZE];
+	va_list ap;
+	FILE *fp = tmpfile();
+
+	va_start(ap, fmt);
+	vsnprintf(line, sizeof(line), fmt, ap);
+	va_end(ap);
+
+	print_desc("", line);
+	if (fp && !debug) {
+		oldout = dup(STDOUT_FILENO);
+		olderr = dup(STDERR_FILENO);
+		dup2(fileno(fp), STDOUT_FILENO);
+		dup2(fileno(fp), STDERR_FILENO);
+	}
+	status = run(cmd);
+	if (fp && !debug) {
+		dup2(oldout, STDOUT_FILENO);
+		dup2(olderr, STDERR_FILENO);
+	}
+	print_result(status);
+	if (fp && !debug) {
+		size_t len, written;
+
+		rewind(fp);
+		do {
+			len     = fread(line, 1, sizeof(line), fp);
+			written = fwrite(line, len, sizeof(char), stderr);
+		} while (len > 0 && written == len);
+		fclose(fp);
+	}
+
+	return status;
+}
+
+pid_t run_getty(char *cmd, char *argv[])
+{
+	pid_t pid = fork();
+
+	if (!pid) {
+		int i;
+		char c;
+		sigset_t nmask;
+		struct sigaction sa;
+
+		/* Detach from initial controlling TTY */
+		vhangup();
+
+		close(2);
+		close(1);
+		close(0);
+
+		/* Attach TTY to console */
+		if (open(CONSOLE, O_RDWR) != 0)
+			exit(1);
+
+		sigemptyset(&nmask);
+		sigaddset(&nmask, SIGCHLD);
+		sigprocmask(SIG_UNBLOCK, &nmask, NULL);
+
+		/* Reset signal handlers that were set by the parent process */
+                for (i = 1; i < NSIG; i++)
+			DFLSIG(sa, i, 0);
+
+		dup2(0, STDIN_FILENO);
+		dup2(0, STDOUT_FILENO);
+		dup2(0, STDERR_FILENO);
+
+		procname_set("console", argv);
+
+		while (!fexist(SYNC_SHUTDOWN)) {
+			static const char msg[] = "\nPlease press Enter to activate this console. ";
+
+			if (fexist(SYNC_STOPPED)) {
+				sleep(1);
+				continue;
+			}
+
+			i = write(STDERR_FILENO, msg, sizeof(msg) - 1);
+			while (read(STDIN_FILENO, &c, 1) == 1 && c != '\n')
+				continue;
+
+			if (fexist(SYNC_STOPPED))
+				continue;
+
+			run(cmd);
+		}
+
+		exit(0);
+	}
+
+	return pid;
+}
+
+int run_parts(char *dir, char *cmd)
+{
+	struct dirent **e;
+	int i, num;
+
+	num = scandir(dir, &e, NULL, alphasort);
+	if (num < 0) {
+		_d("No files found in %s, skipping ...", dir);
+		return -1;
+	}
 
 	for (i = 0; i < num; i++) {
-		args[0] = ent[i];
-		if (!fork()) {
-			execv(ent[i], args);
+		int j = 0, status;
+		pid_t pid = 0;
+		mode_t mode;
+		char *args[NUM_ARGS];
+		char *name = e[i]->d_name;
+		char path[CMD_SIZE];
+
+		snprintf(path, sizeof(path), "%s/%s", dir, name);
+		mode = fmode(path);
+		if (!S_ISEXEC(mode) || S_ISDIR(mode)) {
+			_d("Skipping %s ...", path);
+			continue;
+		}
+
+		/* Fill in args[], starting with full path to executable */
+		args[j++] = path;
+
+		/* If the callee didn't supply a run_parts() argument */
+		if (!cmd) {
+			/* Check if S<NUM>service or K<NUM>service notation is used */
+			_d("Checking if %s is a sysvinit startstop script ...", name);
+			if (name[0] == 'S' && isdigit(name[1])) {
+				args[j++] = "start";
+			} else if (name[0] == 'K' && isdigit(name[1])) {
+				args[j++] = "stop";
+			}
+		} else {
+			args[j++] = cmd;
+		}
+		args[j++] = NULL;
+
+		pid = fork();
+		if (!pid) {
+			_d("Calling %s ...", path);
+			execv(path, args);
 			exit(0);
 		}
-		wait(NULL);
-		free(ent[i]);
+		waitpid(pid, &status, 0);
 	}
 
+	while (num--)
+		free(e[num]);
+	free(e);
+
 	return 0;
 }
 
-int getgroup(char *s)
+int getuser(char *username)
+{
+	struct passwd *usr;
+
+	if (!username || (usr = getpwnam(username)) == NULL)
+		return -1;
+
+	return usr->pw_uid;
+}
+
+int getgroup(char *group)
 {
 	struct group *grp;
 
-	if ((grp = getgrnam(s)) == NULL)
+	if ((grp = getgrnam(group)) == NULL)
 		return -1;
 
 	return grp->gr_gid;
@@ -174,12 +649,40 @@ int getgroup(char *s)
  * Other convenience functions
  */
 
-void chomp(char *s)
+void cls(void)
+{
+	static const char cls[] = "\e[2J\e[1;1H";
+
+	if (!debug)
+		fprintf (stderr, "%s", cls);
+}
+
+void chomp(char *str)
 {
 	char *x;
 
-	if ((x = strchr((s), 0x0a)) != NULL)
+	if ((x = strchr((str), 0x0a)) != NULL)
 		*x = 0;
 }
 
-#endif
+void set_hostname(char *hostname)
+{
+	FILE *fp;
+
+	_d("Set hostname: %s", hostname);
+	if ((fp = fopen("/etc/hostname", "r")) != NULL) {
+		fgets(hostname, HOSTNAME_SIZE, fp);
+		chomp(hostname);
+		fclose(fp);
+	}
+
+	sethostname(hostname, strlen(hostname));
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

helpers.h

@@ -1,14 +1,105 @@
-#ifndef __FINIT_HELPERS_H
-#define __FINIT_HELPERS_H
+/* Misc. utility functions and C-library extensions for finit and its plugins
+ *
+ * Copyright (c) 2008-2010  Claudio Matsuoka <cmatsuoka@gmail.com>
+ * Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 
-int	makepath	(char *);
-void	ifconfig	(char *, char *, char *, int);
-void	copyfile	(char *, char *, int);
-void	chomp		(char *);
-int	getgroup	(char *);
+#ifndef FINIT_HELPERS_H_
+#define FINIT_HELPERS_H_
 
-#ifdef BUILTIN_RUNPARTS
-int	run_parts	(char *, ...);
+#include <stdio.h>
+#include <syslog.h>
+
+#define DO_LOG(level, fmt, args...)				\
+{								\
+	openlog("finit", LOG_CONS | LOG_PID, LOG_DAEMON);	\
+	syslog(level, fmt, ##args);				\
+	closelog();						\
+}
+
+#define FLOG_DEBUG(fmt, args...)  DO_LOG(LOG_DEBUG, fmt, ##args)
+#define FLOG_WARN(fmt, args...)   DO_LOG(LOG_WARNING, fmt, ##args)
+#define FLOG_ERROR(fmt, args...)  DO_LOG(LOG_CRIT, fmt, ##args)
+#define FLOG_PERROR(fmt, args...) DO_LOG(LOG_CRIT, fmt ". Error %d: %s", ##args, errno, strerror(errno))
+
+
+#ifndef touch
+# define touch(x) mknod((x), S_IFREG|0644, 0)
+#endif
+#ifndef chardev
+# define chardev(x,m,maj,min) mknod((x), S_IFCHR|(m), makedev((maj),(min)))
+#endif
+#ifndef blkdev
+# define blkdev(x,m,maj,min) mknod((x), S_IFBLK|(m), makedev((maj),(min)))
+#endif
+#ifndef S_ISEXEC
+# define S_ISEXEC(m) (((m) & S_IXUSR) == S_IXUSR)
+#endif
+#ifndef UNUSED
+#define UNUSED(x) UNUSED_ ## x __attribute__ ((unused))
 #endif
 
-#endif
+#define echo(fmt, args...) do { if (verbose) { fprintf(stderr,                    fmt "\n", ##args); } } while (0)
+#define   _d(fmt, args...) do { if (debug)   { fprintf(stderr, "finit:%s() - "    fmt "\n", __func__, ##args); } } while (0)
+#define   _e(fmt, args...) do {                fprintf(stderr, "finit:%s:%s() - " fmt "\n", __FILE__, __func__, ##args); } while (0)
+#define  _pe(fmt, args...) do {                fprintf(stderr, "finit:%s:%s() - " fmt ". Error %d: %s\n", __FILE__, __func__, ##args, errno, strerror(errno)); } while (0)
+
+extern int debug;
+extern int verbose;
+
+int	makepath	(char *path);
+void    ifconfig        (char *ifname, char *addr, char *mask, int up);
+
+pid_t   pidfile_read    (char *pidfile);
+pid_t   pidfile_poll    (char *cmd, char *path);
+
+int     pid_alive       (pid_t pid);
+char   *pid_get_name    (pid_t pid, char *name, size_t len);
+
+void    procname_set    (char *name, char *args[]);
+int     procname_kill   (char *name, int signo);
+
+void    print_desc     (char *action, char *desc);
+int     print_result    (int fail);
+int     start_process   (char *cmd, char *args[], int console);
+void    cls             (void);
+void	chomp		(char *str);
+int     getuser         (char *username);
+int	getgroup	(char *group);
+void    set_hostname    (char *hostname);
+
+int     run             (char *cmd);
+int     run_interactive (char *cmd, char *fmt, ...);
+pid_t   run_getty       (char *cmd, char *argv[]);
+int	run_parts	(char *dir, char *cmd);
+
+/* strlcpy.c */
+size_t strlcpy(char *dst, const char *src, size_t siz);
+
+#endif /* FINIT_HELPERS_H_ */
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

libite/Makefile

@@ -0,0 +1,79 @@
+# Finit libite -- Light-weight utility functions and C-library extensions
+# 
+# Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+.EXPORT_ALL_VARIABLES:
+.PHONY: all install clean
+
+include  ../common.mk
+
+CFLAGS     += -fPIC
+HEADERS     = lite.h
+OBJS       := copyfile.o dir.o fexist.o fisdir.o fmode.o rsync.o
+DEPS       := $(addprefix ., $(OBJS:.o=.d))
+
+VER         = 0
+LIBNAME     = libite
+TARGET      = $(LIBNAME).so
+VERLIB      = $(TARGET).$(VER)
+STATICLIB   = $(LIBNAME).a
+
+CHECK_FLAGS = $(CFLAGS) $(CPPFLAGS)
+
+all: $(TARGET)
+
+$(OBJS): Makefile
+
+$(TARGET): $(OBJS)
+	@printf "  LINK    %s\n" $@
+#	@$(AR) $(ARFLAGS) $(STATICLIB) $(OBJS)
+	@$(CC) $(LDFLAGS) -shared $(OBJS) -lrt -lcrypt -Wl,-soname,$@ -o $@
+	@ln -sf $@ $(VERLIB)
+
+install-exec: all
+	@install -d $(DESTDIR)$(libdir)
+	@echo "  INSTALL $(DESTDIR)$(libdir)/$(TARGET)"
+	@$(STRIPINST) $(TARGET) $(DESTDIR)$(libdir)/$(TARGET)
+	@ln -sf $(TARGET) $(DESTDIR)$(libdir)/$(VERLIB)
+
+install-dev:
+	@for file in $(HEADERS); do	                                \
+		printf "  INSTALL $(DESTDIR)$(incdir)/$$file\n";	\
+		$(INSTALL) -m 0644 $$file $(DESTDIR)$(incdir)/$$file;	\
+	done
+
+install: install-dev install-exec
+
+uninstall:
+	-@$(RM) $(DESTDIR)$(libdir)/$(VERLIB)
+	-@$(RM) $(DESTDIR)$(libdir)/$(TARGET)
+
+clean: uninstall
+	-@$(RM) $(OBJS) $(DEPS) $(TARGET) $(VERLIB) $(STATICLIB)
+
+distclean: clean
+	-@$(RM) $(JUNK) unittest *.o .*.d *.unittest
+
+ifneq ($(MAKECMDGOALS),clean)
+ifneq ($(MAKECMDGOALS),distclean)
+-include $(DEPS)
+endif
+endif

libite/copyfile.c

@@ -0,0 +1,317 @@
+/* Fastinit (finit) copyfile() implementation.
+ *
+ * Copyright (c) 2008 Claudio Matsuoka <http://helllabs.org/finit/>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/param.h> /* MAX(), isset(), setbit(), TRUE, FALSE, et consortes. :-) */
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "lite.h"
+
+static int __isdir_and_append_filename(char *src, char **dst);
+
+/**
+ * copyfile - Copy a file to another.
+ * @src: Source file.
+ * @dst: Target file.
+ * @len: Number of bytes to copy, zero (0) for entire file.
+ *
+ * This is a C implementation of the command line cp(1) utility.  It is one
+ * of the classic missing links in the UNIX C library.  This version is from
+ * the finit project, http://helllabs.org/finit/, which is a reimplementation
+ * of fastinit for the Asus EeePC.
+ *
+ * Only some small changes to save stack space have been introduced.
+ *
+ * Returns:
+ * The number of bytes copied, zero may be error (check errno!), but it
+ * may also indicate that @src was empty. If @src is a directory errno
+ * will be set to %EISDIR since copyfile() is not recursive.
+ */
+ssize_t copyfile(char *src, char *dst, int len)
+{
+	char *buffer;
+	int s, d, n, isdir = 0, saved_errno = 0;
+	ssize_t size = 0;
+
+	errno = 0;		/* Reset before leaving this function. */
+//   fprintf (stderr, "%s() src: %s, dst: %s, len: %d\n", __func__, src, dst, len);
+
+	buffer = malloc(BUFSIZ);
+	if (!buffer)
+		return 0;
+
+	if (fisdir(src)) {
+		errno = EISDIR;	/* Error: source is a directory */
+		return 0;
+	}
+
+	/* Check if target is a directory, then append the src base filename. */
+	isdir = __isdir_and_append_filename(src, &dst);
+
+	/* Len == 0 means copy entire file */
+	if (len == 0) {
+		/* XXX: This feels a bit unsafe, but 2047 MiB may be sufficient for us.
+		 *       --Jocke 2008-08-11 */
+		len = INT_MAX;
+	}
+
+	if ((s = open(src, O_RDONLY)) >= 0) {
+		if ((d =
+		     open(dst, O_WRONLY | O_CREAT | O_TRUNC,
+			  fmode(src))) >= 0) {
+			do {
+				int clen = len > BUFSIZ ? BUFSIZ : len;
+
+				if ((n = read(s, buffer, clen)) > 0) {
+					size += write(d, buffer, n);
+				}
+				len -= clen;
+			}
+			while (len > 0 && n == BUFSIZ);
+
+			close(d);
+		} else {
+			saved_errno = errno;
+		}
+
+		close(s);
+	} else {
+		saved_errno = errno;
+	}
+
+	free(buffer);
+	if (isdir)
+		free(dst);
+	errno = saved_errno;
+
+	return size;
+}
+
+/**
+ * movefile - Move a file to another location
+ * @src: Source file.
+ * @dst: Target file, or location.
+ *
+ * This is a C implementation of the command line mv(1) utility.
+ * Usually the rename() API is sufficient, but not when moving across
+ * file system boundaries.
+ *
+ * The @src argument must include the full path to the source file,
+ * whereas the @dst argument may only be a directory, in which case the
+ * same file name from @src is used.
+ *
+ * Returns:
+ * POSIX OK(0), or non-zero with errno set.
+ */
+int movefile(char *src, char *dst)
+{
+	int isdir, result = 0;
+
+	/* Check if target is a directory, then append the src base filename. */
+	isdir = __isdir_and_append_filename(src, &dst);
+
+	if (rename(src, dst)) {
+		if (errno == EXDEV) {
+			errno = 0;
+			copyfile(src, dst, 0);
+			if (errno)
+				result = 1;
+			else
+				result = remove(src);
+		} else {
+			result = 1;
+		}
+	}
+
+	if (isdir)
+		free(dst);
+
+	return result;
+}
+
+/**
+ * copy_filep - Copy between FILE *fp.
+ * @src: Source FILE.
+ * @dst: Destination FILE.
+ *
+ * Function takes signals into account and will restart the syscalls as long
+ * as error is %EINTR.
+ *
+ * Returns:
+ * POSIX OK(0), or non-zero with errno set on error.
+ */
+int copy_filep(FILE *src, FILE *dst)
+{
+	int result = 0;
+	char *buf = (char *)malloc(BUFSIZ);
+
+	if (!src || !dst)
+		return EINVAL;
+
+	if (!buf)
+		return errno;
+
+	while (1) {
+		if (!fgets(buf, BUFSIZ, src)) {
+			if (errno == EINTR) {
+				clearerr(src);
+				continue;
+			}
+			if (feof(src))
+				break;
+
+			result = errno;
+			goto exit;
+		}
+		while (EOF == fputs(buf, dst)) {
+			if (errno == EINTR) {
+				clearerr(dst);
+				continue;
+			}
+
+			result = errno;
+			goto exit;
+		}
+	}
+
+ exit:
+	free(buf);
+	return errno = result;
+}
+
+/* Tests if dst is a directory, if so, reallocates dst and appends src filename returning 1 */
+static int __isdir_and_append_filename(char *src, char **dst)
+{
+	int isdir = 0;
+
+	if (fisdir(*dst)) {
+		int slash = 0;
+		char *tmp, *ptr = strrchr(src, '/');
+
+		if (!ptr)
+			ptr = src;
+		else
+			ptr++;
+
+//      fprintf (stderr, "Yes %s is a dir --> add %s\n", *dst, ptr);
+		tmp = malloc(strlen(*dst) + strlen(ptr) + 2);
+		if (!tmp) {
+			errno = EISDIR;
+			return 0;
+		}
+
+		isdir = 1;	/* Free dst before exit! */
+		slash = fisslashdir(*dst);
+
+		sprintf(tmp, "%s%s%s", *dst, slash ? "" : "/", ptr);
+		*dst = tmp;
+//      fprintf (stderr, "NEW DST:%s\n", *dst);
+	}
+
+	return isdir;
+}
+
+#ifdef UNITTEST
+#include <stdio.h>
+/* XXX: Make a real set of unit tests ... */
+#if 0
+int main(int argc, char *argv[])
+{
+	if (argc < 3) {
+		fprintf(stderr,
+			"Usage: %s <src> <dst>\nCopies the <src> file to the <dst> file.\n",
+			argv[0]);
+		return 1;
+	}
+
+	printf("Copying file %s to %s\n", argv[1], argv[2]);
+
+	return copyfile(argv[1], argv[2], 0);
+}
+#else
+int main(void)
+{
+	int i = 0;
+	char *files[] = {
+		"/etc/passwd", "/tmp/tok", "/tmp/tok",
+		"/etc/passwd", "/tmp/", "/tmp/passwd",
+		"/etc/passwd", "/tmp", "/tmp/passwd",
+		NULL
+	};
+	FILE *src, *dst;
+
+	fprintf(stderr, "\n=>Start testing copy_filep()\n");
+	while (files[i]) {
+		fprintf(stderr, "copy_filep(%s, %s)\t", files[i],
+			files[i + 1]);
+		src = fopen(files[i], "r");
+		dst = fopen(files[i + 1], "w");
+		if (copy_filep(src, dst))
+			perror("Failed");
+
+		if (src)
+			fclose(src);
+		if (dst)
+			fclose(dst);
+
+		if (fexist(files[i + 2]))
+			fprintf(stderr, "OK => %s\n", files[i + 2]);
+
+		remove(files[i + 2]);
+		i += 3;
+	}
+
+	printf("\n\n=>Start testing copyfile()\n");
+	i = 0;
+	while (files[i]) {
+		fprintf(stderr, "copyfile(%s, %s)\t", files[i], files[i + 1]);
+		if (!copyfile(files[i], files[i + 1], 0))
+			perror("Failed");
+
+		if (fexist(files[i + 2]))
+			fprintf(stderr, "OK => %s\n", files[i + 2]);
+
+		remove(files[i + 2]);
+		i += 3;
+	}
+
+	return 0;
+}
+#endif
+#endif				/* UNITTEST */
+
+/**
+ * Local Variables:
+ *  compile-command: "gcc -g -I../include -o unittest -DUNITTEST copyfile.c && ./unittest"
+ *  version-control: t
+ *  kept-new-versions: 2
+ *  c-file-style: "ellemtel"
+ * End:
+ */

libite/dir.c

@@ -0,0 +1,228 @@
+/* Functions for operating on files in directories.
+ *
+ * Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+ * 
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <assert.h>
+#include <dirent.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static const char *matcher_type = NULL;
+static int (*matcher_filter) (const char *file) = NULL;
+static int matcher(const struct dirent *entry)
+{
+	char *pos = strrchr(entry->d_name, '.');
+
+	if (matcher_filter && !matcher_filter(entry->d_name))
+		/* User matcher overrides the rest. */
+		return 0;
+
+	/* Skip current dir "." from list of files. */
+	if ((1 == strlen(entry->d_name) && entry->d_name[0] == '.') ||
+	    (2 == strlen(entry->d_name) && !strcmp(entry->d_name, "..")))
+		return 0;
+
+	/* filetype == "" */
+	if (matcher_type[0] == 0)
+		return 1;
+
+	/* Entry has no "." */
+	if (!pos)
+		return 0;
+
+	return !strcmp(pos, matcher_type);
+}
+
+/**
+ * dir - List all files of a certain type in the given directory.
+ * @dir:   Base directory for dir operation.
+ * @type:  File type suffix, e.g. ".cfg".
+ * @filter: Optional file name filter.
+ * @list:  Pointer to an array of file names.
+ * @strip: Flag, if set dir() strips the file type.
+ *
+ * This function returns a @list of files, matching the @type suffix,
+ * in the given directory @dir.
+ *
+ * The @list argument is a pointer to where to store the dynamically
+ * allocated list of file names.  This list should be free'd by first
+ * calling free() on each file name and then on the list itself.
+ *
+ * If @filter is not %NULL it will be called for each file found.  If
+ * @filter returns non-zero the @file argument will be included in the
+ * resulting @list.  If @filter returns zero for given @file it will
+ * be discarded.
+ *
+ * If the @strip flag is set the resulting @list of files has their
+ * file type stripped, including the dot.  So a match "config0.cfg"
+ * would be returned as "config0".
+ *
+ * Returns:
+ * Number of files in @list, zero if no matching files of @type.
+ */
+int dir(const char *dir, const char *type, int (*filter) (const char *file), char ***list, int strip)
+{
+	int i, n, num = 0;
+	char **files;
+	struct dirent **namelist;
+
+	assert(list);
+
+	if (!dir)
+		/* Assuming current directory */
+		dir = ".";
+	if (!type)
+		/* Assuming all files. */
+		type = "";
+
+	matcher_type = type;
+	matcher_filter = filter;
+	n = scandir(dir, &namelist, matcher, alphasort);
+	if (n < 0) {
+		perror("scandir");
+	} else {
+		files = (char **)malloc(n * sizeof(char *));
+		for (i = 0; i < n; i++) {
+			if (files) {
+				char *name = namelist[i]->d_name;
+				char *type = strrchr(name, '.');
+
+				if (type && strip)
+					*type = 0;
+
+				files[i] = strdup(name);
+				num++;
+			}
+			free(namelist[i]);
+		}
+		free(namelist);
+	}
+
+	if (num)
+		*list = files;
+
+	return num;
+}
+
+#ifdef UNITTEST
+#include <errno.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include "otn/c.h"
+
+#define DIR_TYPE_IMAGE  ".img"
+#define DIR_TYPE_SYSLOG ""
+#define DIR_TYPE_CONFIG ".cfg"
+#define STARTUP_CONFIG  "startup-config.cfg"
+
+int simulate_files(int creat)
+{
+	int i;
+	char *files[] =
+	    { "config0.cfg", "config1.cfg", "config2.cfg", "config3.cfg",
+		"rr109.img", "rx100.img", "rx107.img", "rm957.img", "messages"
+	};
+
+	for (i = 0; i < ARRAY_ELEMENTS(files); i++) {
+		if (creat)
+			touch(files[i]);
+		else
+			remove(files[i]);
+	}
+
+	if (creat)
+		symlink("config2.cfg", STARTUP_CONFIG);
+	else
+		remove(STARTUP_CONFIG);
+
+	return 0;
+}
+
+static int cfg_dir_filter(const char *file)
+{
+	/* Skip the STARTUP_CONFIG file, it is a symbolic link to the
+	 * current startup configuration. */
+	return ! !strcmp(file, STARTUP_CONFIG);
+}
+
+int main(int argc, char *argv[])
+{
+	int i, num;
+	char *type = DIR_TYPE_CONFIG;
+	char **files;
+	int once = 1;
+
+	int is_startup_config(const char *entry) {
+		static char file[80];
+
+		if (once) {
+			int len = readlink(STARTUP_CONFIG, file, sizeof(file));
+
+			if (len == -1)
+				return 0;
+
+			file[len] = 0;
+			once = 0;	/* Only once per call to dir() */
+		}
+		//printf ("Comparing link %s with entry %s\n", file, entry);
+		return !strcmp(file, entry);
+	}
+
+	simulate_files(1);
+
+	if (argc >= 2) {
+		if (!strcasecmp("CONFIG", argv[1])) {
+			type = DIR_TYPE_CONFIG;
+			system("ls -l *" DIR_TYPE_CONFIG);
+		}
+		if (!strcasecmp("IMAGE", argv[1])) {
+			type = DIR_TYPE_IMAGE;
+			system("ls -l *" DIR_TYPE_IMAGE);
+		}
+		if (!strcasecmp("SYSLOG", argv[1])) {
+			type = DIR_TYPE_SYSLOG;
+			system("ls -l *");
+		}
+	}
+
+	num = dir(NULL, type, cfg_dir_filter, &files, 0);
+	if (num) {
+		for (i = 0; i < num; i++) {
+			printf("%s", files[i]);
+			if (is_startup_config(files[i]))
+				printf(" --> startup-config");
+			printf("\n");
+
+			free(files[i]);
+		}
+		free(files);
+	}
+
+	simulate_files(0);
+
+	return 0;
+}
+#endif				/* UNITTEST */
+
+/**
+ * Local Variables:
+ *  compile-command: "gcc -g -DUNITTEST -o unittest dir.c"
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

libite/fexist.c

@@ -0,0 +1,53 @@
+/* Check if file exists
+ *
+ * Copyright (c) 2008 Claudio Matsuoka <http://helllabs.org/finit/>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <errno.h>
+#include <unistd.h>
+
+/**
+ * fexist - Check if a file exists in the file system.
+ * @file: File to look for, with full path.
+ *
+ * Returns:
+ * %TRUE(1) if the file exists, otherwise %FALSE(0).
+ */
+int fexist(char *file)
+{
+	if (!file) {
+		errno = EINVAL;
+		return 0;	/* Doesn't exist ... */
+	}
+
+	if (-1 == access(file, F_OK))
+		return 0;
+
+	return 1;
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

libite/fisdir.c

@@ -0,0 +1,51 @@
+/* Check if directory exists
+ *
+ * Copyright (c) 2008 Claudio Matsuoka <http://helllabs.org/finit/>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+/**
+ * fexist - Check if a file exists and is a directory.
+ * @file: File to look for, with full path.
+ *
+ * Returns:
+ * %TRUE(1) if the file exists and is a directory, otherwise %FALSE(0).
+ */
+int fisdir(char *file)
+{
+	struct stat sb;
+
+	if (!stat(file, &sb) && S_ISDIR(sb.st_mode))
+		return 1;
+
+	return 0;
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

libite/fmode.c

@@ -0,0 +1,57 @@
+/* File mode bit operations
+ *
+ * Copyright (c) 2008 Claudio Matsuoka <http://helllabs.org/finit/>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+/**
+ * fmode - Return a file's mode bits.
+ * @file: File to look for, with full path.
+ *
+ * Returns:
+ * The mode bits or zero when @file does not exist and errno set to %ENOENT.
+ */
+mode_t fmode(char *file)
+{
+	struct stat sb;
+
+	if (!file) {
+		errno = EINVAL;
+		return 0;
+	}
+
+	if (!stat(file, &sb))
+		return sb.st_mode;
+
+	return 0;
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

libite/lite.h

@@ -0,0 +1,61 @@
+/* Collection of utility funcs and C library extensions for finit & its plugins
+ *
+ * Copyright (c) 2008-2010  Claudio Matsuoka <cmatsuoka@gmail.com>
+ * Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef FINIT_LITE_H_
+#define FINIT_LITE_H_
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+int     fexist     (char *file);
+int     fisdir     (char *file);
+mode_t  fmode      (char *file);
+
+ssize_t copyfile   (char *src, char *dst, int len);
+int     movefile   (char *src, char *dst);
+int     copy_filep (FILE *src, FILE *dst);
+
+int     dir        (const char *dir, const char *type, int (*filter) (const char *file), char ***list, int strip);
+int     rsync      (char *src, char *dst, int delete, int (*filter) (const char *file));
+
+static inline int fisslashdir(char *dir)
+{
+   if (!dir)             return 0;
+   if (strlen (dir) > 0) return dir[strlen (dir) - 1] == '/';
+                         return 0;
+}
+
+#endif /* FINIT_LITE_H_ */
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */
+

libite/rsync.c

@@ -0,0 +1,280 @@
+/* Micro "rsync" implementation.
+ *
+ * Copyright (c) 2011, 2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <errno.h>
+#include <stdlib.h>	/* NULL, free() */
+#include <string.h>	/* strlen() */
+#include <strings.h>	/* rindex() */
+#include <stdio.h>
+#include <sys/param.h>	/* MAX(), isset(), setbit(), TRUE, FALSE, et consortes. :-) */
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "lite.h"
+#include "../helpers.h"
+
+static int makedir(char *buf, size_t buf_len, char *dir, char *name, mode_t mode);
+static int prune(char *dst, char **new_files, int new_num);
+
+
+/**
+ * rsync - Synchronize contents and optionally remove non-existing backups
+ * @src: Source directory
+ * @dst: Destination directory
+ * @delete: Prune files from @dst that no longer exist in @src.
+ * @filter: Optional filtering function for source directory.
+ *
+ * This is a miniature implementation of the famous rsync for local use only.
+ * In fact, it is not even a true rsync since it copies all files from @src
+ * to @dst.  The @delete option is useful for creating backups, when set all
+ * files removed from src since last backup are pruned from the destination
+ * (backup) directory.
+ *
+ * The filter callback, @filter, if provided, is used to determine what files to
+ * include from the source directory when backing up.  If a file is to be skipped
+ * the callback should simply return zero.
+ *
+ * Returns:
+ * POSIX OK(0), or non-zero with @errno set on error.
+ */
+int rsync(char *src, char *dst, int delete, int (*filter) (const char *file))
+{
+	char source[256];
+	char dest[256];
+	int i = 0, num = 0, result = 0;
+	char **files;		/* Array of file names. */
+
+	void copy(char *src, char *dst)
+	{
+		errno = 0;
+		copyfile(src, dst, 0);
+		if (errno) result++;
+	}
+
+	if (!fisdir(dst))
+		mkdir(dst, 0755);
+
+	if (!fisdir(src)) {
+		if (!fexist(src))
+			return 1;
+
+		copy(src, dst);
+		return errno;
+	}
+
+	/* Copy dir as well? */
+	if (!fisslashdir(src)) {
+		char *ptr = rindex(src, '/');
+
+		if (!ptr)
+			ptr = src;
+		else
+			ptr++;
+
+		if (makedir(dest, sizeof(dest), dst, ptr, fmode(src)))
+			return 1;
+		dst = dest;
+	}
+
+	num = dir(src, "", filter, &files, 0);
+	for (i = 0; i < num; i++) {
+		/* Recursively copy sub-directries */
+		snprintf(source, sizeof(source), "%s%s%s", src, fisslashdir(src) ? "" : "/", files[i]);
+		if (fisdir(source)) {
+			char dst2[256];
+
+			strcat(source, "/");
+			if (makedir (dst2, sizeof(dst2), dst, files[i], fmode(source))) {
+				result++;
+				continue;
+			}
+
+			rsync(source, dst2, delete, filter);
+			continue;	/* Next file/dir in @src to copy... */
+		}
+		copy(source, dst);
+	}
+
+	/* We ignore any errors from the pruning, that phase albeit useful is only
+	 * cosmetic. --Jocke 2011-03-24 */
+	if (delete)
+		prune(dst, files, num);
+
+	if (num) {
+		for (i = 0; i < num; i++)
+			free(files[i]);
+		free(files);
+	}
+
+	return result;
+}
+
+/* Creates dir/name @mode ... skipping / if dir already ends so. */
+static int makedir(char *buf, size_t buf_len, char *dir, char *name, mode_t mode)
+{
+	snprintf(buf, buf_len, "%s%s%s/", dir, fisslashdir(dir) ? "" : "/", name);
+	if (mkdir(buf, mode))
+		return 1;
+
+	return 0;
+}
+
+/* Prune old files, no longer existing on source, from destination directory. */
+static int prune(char *dst, char **new_files, int new_num)
+{
+	int i, num, result = 0;
+	char **files;
+
+	int find(char *file) {
+		int n;
+
+		for (n = 0; n < new_num; n++)
+			if (!strncmp (new_files[n], file, MAX(strlen(new_files[n]), strlen(file))))
+				return 1;
+
+		return 0;
+	}
+
+	num = dir(dst, "", NULL, &files, 0);
+	if (num) {
+		for (i = 0; i < num; i++) {
+			if (!find(files[i])) {
+				char *name;
+				size_t len = strlen(files[i]) + 2 + strlen(dst);
+
+				name = malloc(len);
+				if (name) {
+					snprintf(name, len, "%s%s%s", dst, fisslashdir(dst) ? "" : "/", files[i]);
+					if (remove(name))
+						result++;
+					free(name);
+				}
+			}
+			free(files[i]);
+		}
+		free(files);
+	}
+
+	return result;
+}
+
+#ifdef UNITTEST
+#define BASE "/tmp/.unittest/"
+#define SRC  BASE "src/"
+#define DST  BASE "dst/"
+
+char *files[] = {
+	SRC "sub1/1.tst",
+	SRC "sub1/2.tst",
+	SRC "sub1/3.tst",
+	SRC "sub2/4.tst",
+	SRC "sub2/5.tst",
+	SRC "sub2/6.tst",
+	SRC "sub3/7.tst",
+	SRC "sub3/8.tst",
+	SRC "sub3/9.tst",
+	NULL
+};
+
+void cleanup_test(void)
+{
+	system("rm -rf " BASE);
+}
+
+void setup_test(void)
+{
+	int i;
+	char cmd[256];
+	mode_t dir_modes[] = { 755, 700 };
+	mode_t file_modes[] = { 644, 600 };
+
+	cleanup_test();
+
+	mkdir(BASE, 0755);
+	mkdir(SRC, 0755);
+	mkdir(DST, 0755);
+
+	for (i = 0; files[i]; i++) {
+		snprintf(cmd, sizeof(cmd), "mkdir -m %d -p `dirname %s`",
+			 dir_modes[i % 2], files[i]);
+		system(cmd);
+
+		snprintf(cmd, sizeof(cmd), "touch %s; chmod %d %s", files[i],
+			 file_modes[i % 2], files[i]);
+		system(cmd);
+	}
+}
+
+int run_test()
+{
+#if 0
+	setup_test();
+	puts("Before:");
+	system("tree -np " BASE);
+
+	rsync(SRC, DST, 0, NULL);
+	puts("After:");
+	system("tree -np " BASE);
+	cleanup_test();
+#endif
+
+	setup_test();
+	rsync(BASE "src", DST, 0, NULL);
+	puts("Only partial rsync of src <-- No slash!");
+	system("tree -np " BASE);
+#if 0
+	cleanup_test();
+	setup_test();
+	rsync(BASE "src/sub1", BASE "dst", 0, NULL);
+	puts("Only partial rsync of src/sub1 <-- No slashes!!");
+	system("tree -np " BASE);
+
+	cleanup_test();
+	setup_test();
+	rsync(BASE "src/sub1/", DST, 0, NULL);
+	puts("Only partial rsync of src/sub1/");
+	system("tree -np " BASE);
+
+	cleanup_test();
+	setup_test();
+	rsync(BASE "src/sub1", DST, 0, NULL);
+	puts("Only partial rsync of src/sub1 <-- No slash!");
+	system("tree -np " BASE);
+
+	rsync("/etc", "/var/tmp", 0, NULL);
+	puts("Real life test:");
+	system("tree -np /var/tmp");
+#endif
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	atexit(cleanup_test);
+
+	return run_test();
+}
+#endif				/* UNITTEST */
+
+/**
+ * Local Variables:
+ *  compile-command: "make -f rsync.mk"
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

libite/rsync.mk

@@ -0,0 +1,22 @@
+# Unittest makefile for rsync.c
+.PHONY: clean
+
+SRC      = rsync.c
+OBJS     = dir.o copyfile.o fexist.o fisdir.o fmode.o
+UNIT     = rsync.unittest
+#CPPFLAGS = -DDEBUG -I../../.. -I../../include
+
+all: build run
+
+clean:
+	@rm -f $(OBJS) $(UNIT)
+
+# This rule also forces a cleanup of built objects to not leave any object files
+# lingering in the tree to interfere with cross builds.
+build: clean $(OBJS)
+	$(CC) $(CFLAGS) $(CPPFLAGS) -o $(UNIT) -DUNITTEST $(SRC) $(OBJS)
+	@rm -f $(OBJS)
+
+run:
+	@./$(UNIT)
+

plugin.c

@@ -0,0 +1,347 @@
+/* Plugin based services architecture for finit
+ *
+ * Copyright (c) 2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <errno.h>
+#include <dlfcn.h>		/* dlopen() et al */
+#include <dirent.h>		/* readdir() et al */
+#include <poll.h>
+#include <string.h>
+
+#include "finit.h"
+#include "private.h"
+#include "helpers.h"
+#include "plugin.h"
+#include "queue.h"		/* BSD sys/queue.h API */
+#include "lite.h"
+
+#define is_io_plugin(p) ((p)->io.cb && (p)->io.fd >= 0)
+
+static char         *plugpath = NULL; /* Set by first load. */
+static size_t        num_fds  = 0;
+static struct pollfd fds[MAX_NUM_FDS];
+static TAILQ_HEAD(, plugin) plugins = TAILQ_HEAD_INITIALIZER(plugins);
+
+static void check_plugin_depends(plugin_t *plugin);
+
+int plugin_register(plugin_t *plugin)
+{
+	int i, inuse = 0;
+
+	if (!plugin) {
+		errno = EINVAL;
+		return 1;
+	}
+
+	if (!plugin->name) {
+		Dl_info info;
+
+		if (!dladdr(plugin, &info) || !info.dli_fname)
+			plugin->name = "unknown";
+		else
+			plugin->name = (char *)info.dli_fname;
+	}
+
+	/* Already registered? */
+	if (plugin_find(plugin->name)) {
+		_d("... %s already loaded.", plugin->name);
+		return 0;
+	}
+
+	check_plugin_depends(plugin);
+
+	if (is_io_plugin(plugin)) {
+		if (num_fds + 1 >= MAX_NUM_FDS) {
+			num_fds = MAX_NUM_SVC;
+			errno = ENOMEM;
+			return 1;
+		}
+		num_fds++;
+		inuse++;
+	}
+
+	if (plugin->svc.cb) {
+		svc_t *svc = svc_find(plugin->name);
+
+		if (svc) {
+			inuse++;
+			svc->cb           = plugin->svc.cb;
+			svc->dynamic      = plugin->svc.dynamic;
+			svc->dynamic_stop = plugin->svc.dynamic_stop;
+		}
+	}
+
+	for (i = 0; i < HOOK_MAX_NUM; i++) {
+		if (plugin->hook[i].cb)
+			inuse++;
+	}
+
+	if (!inuse) {
+		_d("No service \"%s\" loaded, and no I/O or finit hooks, skipping plugin.", basename(plugin->name));
+		return 1;
+	}
+
+	TAILQ_INSERT_TAIL(&plugins, plugin, link);
+
+	return 0;
+}
+
+int plugin_unregister(plugin_t *plugin)
+{
+	TAILQ_REMOVE(&plugins, plugin, link);
+
+	if (plugin->svc.cb) {
+		svc_t *svc = svc_find(plugin->name);
+
+		if (svc) {
+			svc->cb      = NULL;
+			svc->dynamic = 0;
+		}
+	}
+
+	/* XXX: Unfinished, add cleanup code here! */
+
+	return 0;
+}
+
+
+#define SEARCH_PLUGIN(str)						\
+	PLUGIN_ITERATOR(p, tmp) {					\
+		_d("Comparing %s against plugin %s", str, p->name);	\
+		if (!strcmp(p->name, str))				\
+			return p;					\
+	}
+
+/**
+ * plugin_find - Find a plugin by name
+ * @name: With or without path, or .so extension
+ *
+ * This function uses an opporunistic search for a suitable plugin and
+ * returns the first match.  Albeit with at least some measure of
+ * heuristics.
+ *
+ * First it checks for an exact match.  If no match is found and @name
+ * starts with a slash the search ends.  Otherwise a new search with the
+ * plugin path prepended to @name is made.  Also, if @name does not end
+ * with .so it too is added to @name before searching.
+ *
+ * Returns:
+ * On success the pointer to the matching &plugin_t is returned,
+ * otherwise %NULL is returned.
+ */
+plugin_t *plugin_find(char *name)
+{
+	plugin_t *p, *tmp;
+
+	if (!name) {
+		errno = EINVAL;
+		return NULL;
+	}
+
+	SEARCH_PLUGIN(name);
+
+	if (name[0] != '/') {
+		int noext;
+		char path[CMD_SIZE];
+
+		noext = strcmp(name + strlen(name) - 3, ".so");
+		snprintf (path, sizeof(path), "%s%s%s%s", plugpath,
+			  fisslashdir(plugpath) ? "" : "/",
+			  name, noext ? ".so" : "");
+
+		SEARCH_PLUGIN(path);
+	}
+
+	errno = ENOENT;
+	return NULL;
+}
+
+/* Private daemon API *******************************************************/
+void plugin_run_hooks(hook_point_t no)
+{
+	plugin_t *p, *tmp;
+
+	PLUGIN_ITERATOR(p, tmp) {
+		if (p->hook[no].cb) {
+			_d("Calling %s hook n:o %d from runloop...", basename(p->name), no);
+			p->hook[no].cb(p->hook[no].arg);
+		}
+	}
+}
+
+/* Generic libev I/O callback, looks up correct plugin and calls its callback */
+static void generic_io_cb(int fd, int events)
+{
+	plugin_t *p, *tmp;
+
+	/* Find matching plugin, pick first matching fd */
+	PLUGIN_ITERATOR(p, tmp) {
+		if (is_io_plugin(p) && p->io.fd == fd) {
+			_d("Calling I/O %s from runloop...", basename(p->name));
+			p->io.cb(p->io.arg, fd, events);
+			break;
+		}
+	}
+}
+
+void plugin_monitor(void)
+{
+	int ret;
+	size_t i;
+
+	while ((ret = poll(fds, num_fds, 500))) {
+		if (-1 == ret) {
+			if (EINTR == errno)
+				continue;
+
+			_e("Failed polling I/O plugin descriptors, error %d: %s",
+			   errno, strerror(errno));
+			break;
+		}
+
+		/* Traverse all I/O fds and run callbacks */
+		for (i = 0; i < num_fds; i++) {
+			if (fds[i].revents)
+				generic_io_cb(fds[i].fd, fds[i].revents);
+		}
+
+		break;
+	}
+}
+
+/* Setup any I/O callbacks for plugins that use them */
+static void init_plugins(void)
+{
+	int i = 0;
+	plugin_t *p, *tmp;
+
+	PLUGIN_ITERATOR(p, tmp) {
+		if (is_io_plugin(p)) {
+			_d("Initializing plugin %s for I/O", basename(p->name));
+			fds[i].revents = 0;
+			fds[i].events  = p->io.flags;
+			fds[i++].fd    = p->io.fd;
+		}
+	}
+}
+
+
+/**
+ * load_one - Load one plugin
+ * @path: Path to finit plugins, usually %PLUGIN_PATH
+ * @name: Name of plugin, optionally ending in ".so"
+ *
+ * Loads a plugin from @path/@name[.so].  Note, if ".so" is missing from
+ * the plugin @name it is added before attempting to load.
+ *
+ * It is up to the plugin itself ot register itself as a "ctor" with the
+ * %PLUGIN_INIT macro so that plugin_register() is called automatically.
+ *
+ * Returns:
+ * POSIX OK(0) on success, non-zero otherwise.
+ */
+static int load_one(char *path, char *name)
+{
+	int noext;
+	char plugin[CMD_SIZE];
+	void *handle;
+
+	if (!path || !fisdir(path) || !name) {
+		errno = EINVAL;
+		return 1;
+	}
+
+	/* Compose full path, with optional .so extension, to plugin */
+	noext = strcmp(name + strlen(name) - 3, ".so");
+	snprintf(plugin, sizeof(plugin), "%s/%s%s", path, name, noext ? ".so" : "");
+
+	_d("Loading plugin %s ...", basename(plugin));
+	handle = dlopen(plugin, RTLD_LAZY | RTLD_GLOBAL);
+	if (!handle) {
+		_e("Failed loading plugin %s: %s", plugin, dlerror());
+		return 1;
+	}
+
+	return 0;
+}
+
+/**
+ * check_plugin_depends - Check and load any plugins this one depends on.
+ * @plugin: Plugin with possible depends to check
+ *
+ * Very simple dependency resolver, should actually load the plugin of
+ * the correct .name, but currently loads a matching filename.
+ *
+ * Works, but only for now.  A better way might be to have a try_load()
+ * that actually loads all plugins and checks their &plugin_t for the
+ * correct .name.
+ */
+static void check_plugin_depends(plugin_t *plugin)
+{
+	int i;
+
+	for (i = 0; i < PLUGIN_DEP_MAX && plugin->depends[i]; i++) {
+		_d("Plugin %s depends on %s ...", plugin->name, plugin->depends[i]);
+		if (plugin_find(plugin->depends[i])) {
+			_d("OK plugin %s was already loaded.", plugin->depends[i]);
+			continue;
+		}
+
+		load_one(plugpath, plugin->depends[i]);
+	}
+}
+
+int plugin_load_all(char *path)
+{
+	int fail = 0;
+	DIR *dp = opendir(path);
+	struct dirent *entry;
+
+	if (!dp) {
+		_e("Failed, cannot open plugin directory %s: %s", path, strerror(errno));
+		return 1;
+	}
+	plugpath = path;
+
+	while ((entry = readdir(dp))) {
+		if (entry->d_name[0] == '.')
+			continue; /* Skip . and .. directories */
+
+//		print_desc("   Loading plugin ", basename(plugin));
+		if (load_one(path, entry->d_name))
+			fail++;
+//		print_result(result);
+	}
+
+	closedir(dp);
+	init_plugins();
+
+	return fail;
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

plugin.h

@@ -0,0 +1,124 @@
+/* Plugin based services architecture for finit
+ *
+ * Copyright (c) 2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef FINIT_PLUGIN_H_
+#define FINIT_PLUGIN_H_
+
+#include <poll.h>
+#include "queue.h"		/* BSD sys/queue.h API */
+#include "svc.h"
+
+#define PLUGIN_DEP_MAX  10
+#define PLUGIN_IO_READ  POLLIN
+#define PLUGIN_IO_WRITE POLLOUT
+
+#define PLUGIN_INIT(x) static void __attribute__ ((constructor)) x(void)
+#define PLUGIN_EXIT(x) static void __attribute__ ((destructor))  x(void)
+
+#define PLUGIN_ITERATOR(x, tmp) TAILQ_FOREACH_SAFE(x, &plugins, link, tmp)
+
+/*
+ * Predefined hook points for easier plugin debugging 
+ */
+typedef enum {
+	HOOK_ROOTFS_UP = 0,
+	HOOK_BASEFS_UP,
+	HOOK_NETWORK_UP,
+	HOOK_SYSTEM_UP,
+	HOOK_SVC_UP,
+	HOOK_SHUTDOWN,
+	HOOK_MAX_NUM
+} hook_point_t;
+
+/**
+ * plugin_t - Finit &plugin_t object
+ * @link: BSD sys/queue.h linked list node
+ * @name: Plugin name, or identifier to match against a &svc_t object
+ * @svc:  Service callback for a loaded &svc_t object
+ * @hook: Hook callback definitions
+ * @io:   I/O hook callback
+ *
+ * To setup an &svc_t object callback for a service monitor the @name
+ * must match the @svc_t @cmd exactly for them to "pair".
+ *
+ * A &plugin_t object may contain a service callback, several hooks
+ * and/or an I/O callback as well. This way all critical extensions
+ * to finit can fit in one single plugin, if needed.
+ *
+ * The "dynamic events" discussed in the svc callback is for external
+ * service plugins to implement.  However, it can be anything that 
+ * can cause a service to need to SIGHUP at runtime.  E.g., acquiring
+ * a DHCP lease, or an interface going UP/DOWN. The event itself can
+ * be passed as an integer @event and any optional argument @event_arg
+ *
+ * It is up to the external service plugin to track these events and
+ * relay them to each @dynamic service plugins' callback.  I.e., to
+ * all those with the dynamic flag set.
+ */
+typedef struct plugin {
+	/* BSD sys/queue.h linked list node. */
+	TAILQ_ENTRY(plugin) link;
+
+	/* Plugin name, defaults to basename of plugin path if unset.
+	 * NOTE: Must be same as @cmd for service plugins! */
+	char *name;
+
+	/* Service callback to be called once per lap of runloop. */
+	struct {
+		int dynamic;      /* Callback wants external events as well. */
+		int dynamic_stop; /* Callback allows dynamic events to stop. */
+		svc_cmd_t (*cb)(svc_t *svc, int event, void *event_arg);
+	} svc;
+
+	/* List of hook callbacks. */
+	struct {
+		void  *arg;      /* Optional argument to callback func. */
+		void (*cb)(void *arg);
+	} hook[HOOK_MAX_NUM];
+
+	/* I/O Plugin */
+	struct {
+		int    fd, flags; /* 1:READ, 2:WRITE */
+		void  *arg;
+		void (*cb)(void *arg, int fd, int events);
+	} io;
+
+	char *depends[PLUGIN_DEP_MAX]; /* List of other .name's this depends on. */
+} plugin_t;
+
+/* Public plugin API */
+int plugin_register   (plugin_t *plugin);
+int plugin_unregister (plugin_t *plugin);
+
+/* Helper API */
+plugin_t *plugin_find (char *name);
+
+#endif	/* FINIT_PLUGIN_H_ */
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

plugins/Makefile

@@ -0,0 +1,36 @@
+# Plugin based services architecture for finit -*-Makefile-*-
+CFLAGS     += -fPIC -Os
+CPPFLAGS   += -I..
+LDFLAGS    := $(filter-out -rdynamic, $(LDFLAGS))
+LDFLAGS    += -shared
+PLUGINS    ?= initctl.so alsa-utils.so bootmisc.so dbus.so hwclock.so \
+	      resolvconf.so urandom.so x11-common.so
+DEPS        = $(addprefix .,$(PLUGINS:.so=.d))
+
+include ../common.mk
+
+all: $(PLUGINS)
+
+clean:
+	-@$(RM) $(PLUGINS) *.o
+
+distclean: clean
+	-@$(RM) $(JUNK) $(DEPS)
+
+install: all
+	@install -d $(DESTDIR)$(plugindir)
+	@for plugin in $(PLUGINS); do \
+		echo "  INSTALL $(DESTDIR)$(plugindir)/$$plugin";	\
+		$(STRIPINST) $$plugin $(DESTDIR)$(plugindir)/$$plugin;	\
+	done
+
+uninstall:
+	-@for plugin in $(PLUGINS); do \
+		echo "  RM      $(DESTDIR)$(plugindir)/$$plugin";	\
+		rm $(DESTDIR)$(plugindir)/$$plugin 2>/dev/null; 	\
+	done
+	-@rmdir $(DESTDIR)$(plugindir) 2>/dev/null
+
+ifneq ($(MAKECMDGOALS),clean)
+ -include $(DEPS)
+endif

plugins/alsa-utils.c

@@ -0,0 +1,66 @@
+/* Save and restore ALSA sound settings using alsactl
+ *
+ * Copyright (c) 2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "finit.h"
+#include "helpers.h"
+#include "plugin.h"
+
+static void save(void *UNUSED(arg))
+{
+	_d("Saving sound settings ...");
+	run_interactive("/usr/sbin/alsactl -g store", "Saving sound settings");
+}
+
+static void restore(void *UNUSED(arg))
+{
+	_d("Restoring sound settings ...");
+	run_interactive("/usr/sbin/alsactl -g restore", "Restoring sound settings");
+}
+
+static plugin_t plugin = {
+	.hook[HOOK_BASEFS_UP] = {
+		.cb  = restore
+	},
+	.hook[HOOK_SHUTDOWN] = {
+		.cb  = save
+	}
+};
+
+PLUGIN_INIT(plugin_init)
+{
+	plugin_register(&plugin);
+}
+
+PLUGIN_EXIT(plugin_exit)
+{
+	plugin_unregister(&plugin);
+}
+
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

plugins/bootmisc.c

@@ -0,0 +1,110 @@
+/* Setup necessary files for UTMP, tracking logins
+ *
+ * Copyright (c) 2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <string.h>
+#include <utmp.h>
+
+#include "finit.h"
+#include "helpers.h"
+#include "plugin.h"
+
+/*
+ * Setup standard FHS 2.3 structure in /var, and
+ * write runlevel to UTMP, needed by, e.g., printerdrake.
+ */
+static void setup(void *UNUSED(arg))
+{
+#ifdef RUNLEVEL
+	struct utmp entry;
+#endif
+
+	_d("Setting up FHS structure in /var ...");
+	mkdir("/var/cache",      0755);
+	mkdir("/var/games",      0755);
+	mkdir("/var/lib",        0755);
+	mkdir("/var/lib/misc",   0755);
+	mkdir("/var/lib/alarm",  0755);
+	mkdir("/var/lock",       0755);
+	mkdir("/var/log",        0755);
+	mkdir("/var/mail",       0755);
+	mkdir("/var/opt",        0755);
+	mkdir("/var/run",        0755);
+	mkdir("/var/spool",      0755);
+	mkdir("/var/spool/cron", 0755);
+	mkdir("/var/tmp",        0755);
+	mkdir("/var/empty",      0755);
+
+	_d("Setting up necessary UTMP files ...");
+	touch("/var/run/utmp");
+	chown("/var/run/utmp", 0, getgroup("utmp"));
+	chmod("/var/run/utmp", 0664);
+
+#ifdef RUNLEVEL
+	memset(&entry, 0, sizeof(struct utmp));
+	entry.ut_type = RUN_LVL;
+	entry.ut_pid = '0' + RUNLEVEL;
+	setutent();
+	pututline(&entry);
+	endutent();
+#endif
+
+#ifdef TOUCH_ETC_NETWORK_RUN_IFSTATE
+	touch("/etc/network/run/ifstate");
+#else
+	remove("/etc/network/run/ifstate");
+#endif
+
+	_d("Setting up misc files ...");
+	mkdir("/var/run/lldpd",  0755); /* Needed by lldpd */
+	mkdir("/var/run/pluto",  0755); /* Needed by Openswan */
+	mkdir("/var/run/quagga", 0755); /* Needed by Quagga */
+	mkdir("/var/log/quagga", 0755); /* Needed by Quagga */
+	mkdir("/var/run/sshd", 01755); /* OpenSSH  */
+	mkfifo("/dev/xconsole", 0640); /* sysklogd */
+	chown("/dev/xconsole", 0, getgroup("tty"));
+}
+
+static plugin_t plugin = {
+	.name = "bootmisc",
+	.hook[HOOK_BASEFS_UP] = {
+		.cb  = setup
+	},
+};
+
+PLUGIN_INIT(plugin_init)
+{
+	plugin_register(&plugin);
+}
+
+PLUGIN_EXIT(plugin_exit)
+{
+	plugin_unregister(&plugin);
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

plugins/dbus.c

@@ -0,0 +1,63 @@
+/* Setup and start system message bus, D-Bus
+ *
+ * Copyright (c) 2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "finit.h"
+#include "helpers.h"
+#include "plugin.h"
+
+static void setup(void *UNUSED(arg))
+{
+#ifdef USE_MESSAGE_BUS
+	_d("Starting D-Bus ...");
+	mkdir("/var/run/dbus", 0755);
+	mkdir("/var/lock/subsys/messagebus", 0755);
+	run("dbus-uuidgen --ensure");
+	remove("/var/run/dbus/pid");
+	run_interactive("dbus-daemon --system", "Starting D-Bus");
+#endif
+}
+
+static plugin_t plugin = {
+	.hook[HOOK_NETWORK_UP] = {
+		.cb  = setup
+	},
+	.depends = { "bootmisc", },
+};
+
+PLUGIN_INIT(plugin_init)
+{
+	plugin_register(&plugin);
+}
+
+PLUGIN_EXIT(plugin_exit)
+{
+	plugin_unregister(&plugin);
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

plugins/hwclock.c

@@ -0,0 +1,67 @@
+/* Save and restore RTC using hwclock
+ *
+ * Copyright (c) 2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "finit.h"
+#include "helpers.h"
+#include "plugin.h"
+
+static void save(void *UNUSED(arg))
+{
+	_d("Saving system clock to RTC ...");
+	/* -w,--systohc, -u,--utc */
+	run_interactive("/sbin/hwclock -w -u", "Saving system time (UTC) to RTC");
+}
+
+static void restore(void *UNUSED(arg))
+{
+	_d("Restoring system clock from RTC ...");
+	/* -s,--hctosys, -u,--utc */
+	run_interactive("/sbin/hwclock -s -u", "Restoring system clock (UTC) from RTC");
+}
+
+static plugin_t plugin = {
+	.hook[HOOK_BASEFS_UP] = {
+		.cb  = restore
+	},
+	.hook[HOOK_SHUTDOWN] = {
+		.cb  = save
+	}
+};
+
+PLUGIN_INIT(plugin_init)
+{
+	plugin_register(&plugin);
+}
+
+PLUGIN_EXIT(plugin_exit)
+{
+	plugin_unregister(&plugin);
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

plugins/initctl.c

@@ -0,0 +1,120 @@
+/* Optional /dev/initctl FIFO monitor
+ *
+ * Copyright (c) 2008-2010  Claudio Matsuoka <cmatsuoka@gmail.com>
+ * Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <errno.h>
+#include <fcntl.h>		/* O_RDONLY et al */
+#include <signal.h>
+#include <string.h>
+#include <unistd.h>		/* read() */
+
+#include "helpers.h"
+#include "plugin.h"
+#include "sig.h"
+
+#define INIT_MAGIC		0x03091969
+#define INIT_CMD_RUNLVL		1
+
+struct init_request {
+	int	magic;		/* Magic number			*/
+	int	cmd;		/* What kind of request		*/
+	int	runlevel;	/* Runlevel to change to	*/
+	int	sleeptime;	/* Time between TERM and KILL	*/
+	char	data[368];
+};
+
+/* Standard reboot/shutdown utilities talk to init using /dev/initctl.
+ * We should check if the fifo was recreated and reopen it.
+ */
+static void read_initctl(void *UNUSED(arg), int fd, int UNUSED(events))
+{
+	struct init_request request;
+
+	_d("Receiving request on %s...", FINIT_FIFO);
+	while (1) {
+		ssize_t len = read(fd, &request, sizeof(request));
+
+		if (-1 == len) {
+			_d("Error %d", errno);
+			break;	/* Probably EAGAIN */
+		}
+
+		if (request.magic != INIT_MAGIC)
+			continue;
+
+		_d("Magic OK...");
+		if (request.cmd == INIT_CMD_RUNLVL) {
+			switch (request.runlevel) {
+			case '0':
+				_d("Halting system (SIGUSR2)");
+				do_shutdown(SIGUSR2);
+				break;
+
+			case '6':
+				_d("Rebooting system (SIGUSR1)");
+				do_shutdown(SIGUSR1);
+				break;
+
+			default:
+				_d("Unsupported runlevel: %d", request.runlevel);
+				break;
+			}
+		} else {
+			_d("Unsupported cmd: %d", request.cmd);
+		}
+	}
+}
+
+static plugin_t plugin = {
+	.io = {
+		.cb    = read_initctl,
+		.flags = PLUGIN_IO_READ,
+	},
+};
+
+PLUGIN_INIT(plugin_init)
+{
+	_d("Setting up %s", FINIT_FIFO);
+	mkfifo(FINIT_FIFO, 0600);
+
+	plugin.io.fd = open(FINIT_FIFO, O_RDONLY | O_NONBLOCK);
+	if (-1 == plugin.io.fd) {
+		_e("Failed opening %s FIFO, error %d: %s", FINIT_FIFO, errno, strerror(errno));
+		return;
+	}
+
+	plugin_register(&plugin);
+}
+
+PLUGIN_EXIT(plugin_exit)
+{
+	plugin_unregister(&plugin);
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

plugins/resolvconf.c

@@ -0,0 +1,90 @@
+/* Setup necessary files for resolvconf
+ *
+ * Copyright (c) 2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "finit.h"
+#include "helpers.h"
+#include "plugin.h"
+
+static void setup(void *UNUSED(arg))
+{
+#ifdef USE_ETC_RESOLVCONF_RUN
+	DIR *dir;
+	struct dirent *d;
+#endif
+
+	_d("Setting up the resolver ...");
+#ifdef USE_ETC_RESOLVCONF_RUN
+	makepath("/dev/shm/network");
+	makepath("/dev/shm/resolvconf/interface");
+
+	if ((dir = opendir("/etc/resolvconf/run/interface")) != NULL) {
+		while ((d = readdir(dir)) != NULL) {
+			if (isalnum(d->d_name[0]))
+				continue;
+			snprintf(line, sizeof(line),
+				 "/etc/resolvconf/run/interface/%s", d->d_name);
+			unlink(line);
+		}
+
+		closedir(dir);
+	}
+#endif
+
+#ifdef USE_VAR_RUN_RESOLVCONF
+	makepath("/var/run/resolvconf/interface");
+	symlink("../../../etc/resolv.conf", "/var/run/resolvconf/resolv.conf");
+#endif
+
+#ifdef USE_ETC_RESOLVCONF_RUN
+	touch("/etc/resolvconf/run/enable-updates");
+
+	chdir("/etc/resolvconf/run/interface");
+	run_parts("/etc/resolvconf/update.d", "-i");
+	chdir("/");
+#endif /* USE_ETC_RESOLVCONF_RUN */
+}
+
+static plugin_t plugin = {
+	.hook[HOOK_BASEFS_UP] = {
+		.cb  = setup
+	},
+	.depends = { "bootmisc", },
+};
+
+PLUGIN_INIT(plugin_init)
+{
+	plugin_register(&plugin);
+}
+
+PLUGIN_EXIT(plugin_exit)
+{
+	plugin_unregister(&plugin);
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

plugins/urandom.c

@@ -0,0 +1,66 @@
+/* Setup random seed
+ *
+ * Copyright (c) 2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "finit.h"
+#include "helpers.h"
+#include "plugin.h"
+
+static void setup(void *UNUSED(arg))
+{
+#ifdef RANDOMSEED
+	copyfile(RANDOMSEED, "/dev/urandom", 0);
+	unlink(RANDOMSEED);
+	umask(077);
+	copyfile("/dev/urandom", RANDOMSEED, 4096);
+	umask(0);
+#endif
+}
+
+static plugin_t plugin = {
+	.hook[HOOK_BASEFS_UP] = {
+		.cb  = setup
+	},
+	.depends = { "bootmisc", }
+};
+
+PLUGIN_INIT(plugin_init)
+{
+	plugin_register(&plugin);
+}
+
+PLUGIN_EXIT(plugin_exit)
+{
+	plugin_unregister(&plugin);
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

plugins/x11-common.c

@@ -0,0 +1,78 @@
+/* Console setup (for X)
+ *
+ * Copyright (c) 2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "finit.h"
+#include "helpers.h"
+#include "plugin.h"
+
+static void setup(void *UNUSED(arg))
+{
+#ifdef PAM_CONSOLE
+	int fd;
+#endif
+	char line[LINE_SIZE];
+
+	makepath("/var/run/console");
+	snprintf(line, sizeof(line), "/var/run/console/%s", username);
+	touch(line);
+
+#ifdef PAM_CONSOLE
+	if ((fd = open("/var/run/console/console.lock", O_CREAT|O_WRONLY|O_TRUNC, 0644)) >= 0) {
+		write(fd, username, strlen(username));
+		close(fd);
+		run("/sbin/pam_console_apply");
+	}
+#endif
+
+	mkdir("/tmp/.X11-unix", 01777);
+	mkdir("/tmp/.ICE-unix", 01777);
+}
+
+static plugin_t plugin = {
+	.hook[HOOK_NETWORK_UP] = {
+		.cb  = setup
+	},
+	.depends = { "bootmisc", }
+};
+
+PLUGIN_INIT(plugin_init)
+{
+	plugin_register(&plugin);
+}
+
+PLUGIN_EXIT(plugin_exit)
+{
+	plugin_unregister(&plugin);
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

private.h

@@ -0,0 +1,46 @@
+/* Private header file for main finit daemon, not for plugins
+ *
+ * Copyright (c) 2008-2010  Claudio Matsuoka <cmatsuoka@gmail.com>
+ * Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef FINIT_PRIVATE_H_
+#define FINIT_PRIVATE_H_
+
+#include "svc.h"
+#include "plugin.h"
+
+void      svc_start_all    (void);
+void      svc_monitor      (void);
+
+void      plugin_run_hooks (hook_point_t no);
+int       plugin_load_all  (char *path);
+void      plugin_monitor   (void);
+
+#endif /* FINIT_PRIVATE_H_ */
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

queue.h

@@ -0,0 +1,568 @@
+/*	$OpenBSD: queue.h,v 1.36 2012/04/11 13:29:14 naddy Exp $	*/
+/*	$NetBSD: queue.h,v 1.11 1996/05/16 05:17:14 mycroft Exp $	*/
+
+/*
+ * Copyright (c) 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)queue.h	8.5 (Berkeley) 8/20/94
+ */
+
+#ifndef	_SYS_QUEUE_H_
+#define	_SYS_QUEUE_H_
+
+/*
+ * This file defines five types of data structures: singly-linked lists, 
+ * lists, simple queues, tail queues, and circular queues.
+ *
+ *
+ * A singly-linked list is headed by a single forward pointer. The elements
+ * are singly linked for minimum space and pointer manipulation overhead at
+ * the expense of O(n) removal for arbitrary elements. New elements can be
+ * added to the list after an existing element or at the head of the list.
+ * Elements being removed from the head of the list should use the explicit
+ * macro for this purpose for optimum efficiency. A singly-linked list may
+ * only be traversed in the forward direction.  Singly-linked lists are ideal
+ * for applications with large datasets and few or no removals or for
+ * implementing a LIFO queue.
+ *
+ * A list is headed by a single forward pointer (or an array of forward
+ * pointers for a hash table header). The elements are doubly linked
+ * so that an arbitrary element can be removed without a need to
+ * traverse the list. New elements can be added to the list before
+ * or after an existing element or at the head of the list. A list
+ * may only be traversed in the forward direction.
+ *
+ * A simple queue is headed by a pair of pointers, one the head of the
+ * list and the other to the tail of the list. The elements are singly
+ * linked to save space, so elements can only be removed from the
+ * head of the list. New elements can be added to the list before or after
+ * an existing element, at the head of the list, or at the end of the
+ * list. A simple queue may only be traversed in the forward direction.
+ *
+ * A tail queue is headed by a pair of pointers, one to the head of the
+ * list and the other to the tail of the list. The elements are doubly
+ * linked so that an arbitrary element can be removed without a need to
+ * traverse the list. New elements can be added to the list before or
+ * after an existing element, at the head of the list, or at the end of
+ * the list. A tail queue may be traversed in either direction.
+ *
+ * A circle queue is headed by a pair of pointers, one to the head of the
+ * list and the other to the tail of the list. The elements are doubly
+ * linked so that an arbitrary element can be removed without a need to
+ * traverse the list. New elements can be added to the list before or after
+ * an existing element, at the head of the list, or at the end of the list.
+ * A circle queue may be traversed in either direction, but has a more
+ * complex end of list detection.
+ *
+ * For details on the use of these macros, see the queue(3) manual page.
+ */
+
+#if defined(QUEUE_MACRO_DEBUG) || (defined(_KERNEL) && defined(DIAGNOSTIC))
+#define _Q_INVALIDATE(a) (a) = ((void *)-1)
+#else
+#define _Q_INVALIDATE(a)
+#endif
+
+/*
+ * Singly-linked List definitions.
+ */
+#define SLIST_HEAD(name, type)						\
+struct name {								\
+	struct type *slh_first;	/* first element */			\
+}
+ 
+#define	SLIST_HEAD_INITIALIZER(head)					\
+	{ NULL }
+ 
+#define SLIST_ENTRY(type)						\
+struct {								\
+	struct type *sle_next;	/* next element */			\
+}
+ 
+/*
+ * Singly-linked List access methods.
+ */
+#define	SLIST_FIRST(head)	((head)->slh_first)
+#define	SLIST_END(head)		NULL
+#define	SLIST_EMPTY(head)	(SLIST_FIRST(head) == SLIST_END(head))
+#define	SLIST_NEXT(elm, field)	((elm)->field.sle_next)
+
+#define	SLIST_FOREACH(var, head, field)					\
+	for((var) = SLIST_FIRST(head);					\
+	    (var) != SLIST_END(head);					\
+	    (var) = SLIST_NEXT(var, field))
+
+#define	SLIST_FOREACH_SAFE(var, head, field, tvar)			\
+	for ((var) = SLIST_FIRST(head);				\
+	    (var) && ((tvar) = SLIST_NEXT(var, field), 1);		\
+	    (var) = (tvar))
+
+/*
+ * Singly-linked List functions.
+ */
+#define	SLIST_INIT(head) {						\
+	SLIST_FIRST(head) = SLIST_END(head);				\
+}
+
+#define	SLIST_INSERT_AFTER(slistelm, elm, field) do {			\
+	(elm)->field.sle_next = (slistelm)->field.sle_next;		\
+	(slistelm)->field.sle_next = (elm);				\
+} while (0)
+
+#define	SLIST_INSERT_HEAD(head, elm, field) do {			\
+	(elm)->field.sle_next = (head)->slh_first;			\
+	(head)->slh_first = (elm);					\
+} while (0)
+
+#define	SLIST_REMOVE_AFTER(elm, field) do {				\
+	(elm)->field.sle_next = (elm)->field.sle_next->field.sle_next;	\
+} while (0)
+
+#define	SLIST_REMOVE_HEAD(head, field) do {				\
+	(head)->slh_first = (head)->slh_first->field.sle_next;		\
+} while (0)
+
+#define SLIST_REMOVE(head, elm, type, field) do {			\
+	if ((head)->slh_first == (elm)) {				\
+		SLIST_REMOVE_HEAD((head), field);			\
+	} else {							\
+		struct type *curelm = (head)->slh_first;		\
+									\
+		while (curelm->field.sle_next != (elm))			\
+			curelm = curelm->field.sle_next;		\
+		curelm->field.sle_next =				\
+		    curelm->field.sle_next->field.sle_next;		\
+		_Q_INVALIDATE((elm)->field.sle_next);			\
+	}								\
+} while (0)
+
+/*
+ * List definitions.
+ */
+#define LIST_HEAD(name, type)						\
+struct name {								\
+	struct type *lh_first;	/* first element */			\
+}
+
+#define LIST_HEAD_INITIALIZER(head)					\
+	{ NULL }
+
+#define LIST_ENTRY(type)						\
+struct {								\
+	struct type *le_next;	/* next element */			\
+	struct type **le_prev;	/* address of previous next element */	\
+}
+
+/*
+ * List access methods
+ */
+#define	LIST_FIRST(head)		((head)->lh_first)
+#define	LIST_END(head)			NULL
+#define	LIST_EMPTY(head)		(LIST_FIRST(head) == LIST_END(head))
+#define	LIST_NEXT(elm, field)		((elm)->field.le_next)
+
+#define LIST_FOREACH(var, head, field)					\
+	for((var) = LIST_FIRST(head);					\
+	    (var)!= LIST_END(head);					\
+	    (var) = LIST_NEXT(var, field))
+
+#define	LIST_FOREACH_SAFE(var, head, field, tvar)			\
+	for ((var) = LIST_FIRST(head);				\
+	    (var) && ((tvar) = LIST_NEXT(var, field), 1);		\
+	    (var) = (tvar))
+
+/*
+ * List functions.
+ */
+#define	LIST_INIT(head) do {						\
+	LIST_FIRST(head) = LIST_END(head);				\
+} while (0)
+
+#define LIST_INSERT_AFTER(listelm, elm, field) do {			\
+	if (((elm)->field.le_next = (listelm)->field.le_next) != NULL)	\
+		(listelm)->field.le_next->field.le_prev =		\
+		    &(elm)->field.le_next;				\
+	(listelm)->field.le_next = (elm);				\
+	(elm)->field.le_prev = &(listelm)->field.le_next;		\
+} while (0)
+
+#define	LIST_INSERT_BEFORE(listelm, elm, field) do {			\
+	(elm)->field.le_prev = (listelm)->field.le_prev;		\
+	(elm)->field.le_next = (listelm);				\
+	*(listelm)->field.le_prev = (elm);				\
+	(listelm)->field.le_prev = &(elm)->field.le_next;		\
+} while (0)
+
+#define LIST_INSERT_HEAD(head, elm, field) do {				\
+	if (((elm)->field.le_next = (head)->lh_first) != NULL)		\
+		(head)->lh_first->field.le_prev = &(elm)->field.le_next;\
+	(head)->lh_first = (elm);					\
+	(elm)->field.le_prev = &(head)->lh_first;			\
+} while (0)
+
+#define LIST_REMOVE(elm, field) do {					\
+	if ((elm)->field.le_next != NULL)				\
+		(elm)->field.le_next->field.le_prev =			\
+		    (elm)->field.le_prev;				\
+	*(elm)->field.le_prev = (elm)->field.le_next;			\
+	_Q_INVALIDATE((elm)->field.le_prev);				\
+	_Q_INVALIDATE((elm)->field.le_next);				\
+} while (0)
+
+#define LIST_REPLACE(elm, elm2, field) do {				\
+	if (((elm2)->field.le_next = (elm)->field.le_next) != NULL)	\
+		(elm2)->field.le_next->field.le_prev =			\
+		    &(elm2)->field.le_next;				\
+	(elm2)->field.le_prev = (elm)->field.le_prev;			\
+	*(elm2)->field.le_prev = (elm2);				\
+	_Q_INVALIDATE((elm)->field.le_prev);				\
+	_Q_INVALIDATE((elm)->field.le_next);				\
+} while (0)
+
+/*
+ * Simple queue definitions.
+ */
+#define SIMPLEQ_HEAD(name, type)					\
+struct name {								\
+	struct type *sqh_first;	/* first element */			\
+	struct type **sqh_last;	/* addr of last next element */		\
+}
+
+#define SIMPLEQ_HEAD_INITIALIZER(head)					\
+	{ NULL, &(head).sqh_first }
+
+#define SIMPLEQ_ENTRY(type)						\
+struct {								\
+	struct type *sqe_next;	/* next element */			\
+}
+
+/*
+ * Simple queue access methods.
+ */
+#define	SIMPLEQ_FIRST(head)	    ((head)->sqh_first)
+#define	SIMPLEQ_END(head)	    NULL
+#define	SIMPLEQ_EMPTY(head)	    (SIMPLEQ_FIRST(head) == SIMPLEQ_END(head))
+#define	SIMPLEQ_NEXT(elm, field)    ((elm)->field.sqe_next)
+
+#define SIMPLEQ_FOREACH(var, head, field)				\
+	for((var) = SIMPLEQ_FIRST(head);				\
+	    (var) != SIMPLEQ_END(head);					\
+	    (var) = SIMPLEQ_NEXT(var, field))
+
+#define	SIMPLEQ_FOREACH_SAFE(var, head, field, tvar)			\
+	for ((var) = SIMPLEQ_FIRST(head);				\
+	    (var) && ((tvar) = SIMPLEQ_NEXT(var, field), 1);		\
+	    (var) = (tvar))
+
+/*
+ * Simple queue functions.
+ */
+#define	SIMPLEQ_INIT(head) do {						\
+	(head)->sqh_first = NULL;					\
+	(head)->sqh_last = &(head)->sqh_first;				\
+} while (0)
+
+#define SIMPLEQ_INSERT_HEAD(head, elm, field) do {			\
+	if (((elm)->field.sqe_next = (head)->sqh_first) == NULL)	\
+		(head)->sqh_last = &(elm)->field.sqe_next;		\
+	(head)->sqh_first = (elm);					\
+} while (0)
+
+#define SIMPLEQ_INSERT_TAIL(head, elm, field) do {			\
+	(elm)->field.sqe_next = NULL;					\
+	*(head)->sqh_last = (elm);					\
+	(head)->sqh_last = &(elm)->field.sqe_next;			\
+} while (0)
+
+#define SIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do {		\
+	if (((elm)->field.sqe_next = (listelm)->field.sqe_next) == NULL)\
+		(head)->sqh_last = &(elm)->field.sqe_next;		\
+	(listelm)->field.sqe_next = (elm);				\
+} while (0)
+
+#define SIMPLEQ_REMOVE_HEAD(head, field) do {			\
+	if (((head)->sqh_first = (head)->sqh_first->field.sqe_next) == NULL) \
+		(head)->sqh_last = &(head)->sqh_first;			\
+} while (0)
+
+#define SIMPLEQ_REMOVE_AFTER(head, elm, field) do {			\
+	if (((elm)->field.sqe_next = (elm)->field.sqe_next->field.sqe_next) \
+	    == NULL)							\
+		(head)->sqh_last = &(elm)->field.sqe_next;		\
+} while (0)
+
+/*
+ * Tail queue definitions.
+ */
+#define TAILQ_HEAD(name, type)						\
+struct name {								\
+	struct type *tqh_first;	/* first element */			\
+	struct type **tqh_last;	/* addr of last next element */		\
+}
+
+#define TAILQ_HEAD_INITIALIZER(head)					\
+	{ NULL, &(head).tqh_first }
+
+#define TAILQ_ENTRY(type)						\
+struct {								\
+	struct type *tqe_next;	/* next element */			\
+	struct type **tqe_prev;	/* address of previous next element */	\
+}
+
+/* 
+ * tail queue access methods 
+ */
+#define	TAILQ_FIRST(head)		((head)->tqh_first)
+#define	TAILQ_END(head)			NULL
+#define	TAILQ_NEXT(elm, field)		((elm)->field.tqe_next)
+#define TAILQ_LAST(head, headname)					\
+	(*(((struct headname *)((head)->tqh_last))->tqh_last))
+/* XXX */
+#define TAILQ_PREV(elm, headname, field)				\
+	(*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
+#define	TAILQ_EMPTY(head)						\
+	(TAILQ_FIRST(head) == TAILQ_END(head))
+
+#define TAILQ_FOREACH(var, head, field)					\
+	for((var) = TAILQ_FIRST(head);					\
+	    (var) != TAILQ_END(head);					\
+	    (var) = TAILQ_NEXT(var, field))
+
+#define	TAILQ_FOREACH_SAFE(var, head, field, tvar)			\
+	for ((var) = TAILQ_FIRST(head);					\
+	    (var) != TAILQ_END(head) &&					\
+	    ((tvar) = TAILQ_NEXT(var, field), 1);			\
+	    (var) = (tvar))
+
+
+#define TAILQ_FOREACH_REVERSE(var, head, headname, field)		\
+	for((var) = TAILQ_LAST(head, headname);				\
+	    (var) != TAILQ_END(head);					\
+	    (var) = TAILQ_PREV(var, headname, field))
+
+#define	TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar)	\
+	for ((var) = TAILQ_LAST(head, headname);			\
+	    (var) != TAILQ_END(head) &&					\
+	    ((tvar) = TAILQ_PREV(var, headname, field), 1);		\
+	    (var) = (tvar))
+
+/*
+ * Tail queue functions.
+ */
+#define	TAILQ_INIT(head) do {						\
+	(head)->tqh_first = NULL;					\
+	(head)->tqh_last = &(head)->tqh_first;				\
+} while (0)
+
+#define TAILQ_INSERT_HEAD(head, elm, field) do {			\
+	if (((elm)->field.tqe_next = (head)->tqh_first) != NULL)	\
+		(head)->tqh_first->field.tqe_prev =			\
+		    &(elm)->field.tqe_next;				\
+	else								\
+		(head)->tqh_last = &(elm)->field.tqe_next;		\
+	(head)->tqh_first = (elm);					\
+	(elm)->field.tqe_prev = &(head)->tqh_first;			\
+} while (0)
+
+#define TAILQ_INSERT_TAIL(head, elm, field) do {			\
+	(elm)->field.tqe_next = NULL;					\
+	(elm)->field.tqe_prev = (head)->tqh_last;			\
+	*(head)->tqh_last = (elm);					\
+	(head)->tqh_last = &(elm)->field.tqe_next;			\
+} while (0)
+
+#define TAILQ_INSERT_AFTER(head, listelm, elm, field) do {		\
+	if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != NULL)\
+		(elm)->field.tqe_next->field.tqe_prev =			\
+		    &(elm)->field.tqe_next;				\
+	else								\
+		(head)->tqh_last = &(elm)->field.tqe_next;		\
+	(listelm)->field.tqe_next = (elm);				\
+	(elm)->field.tqe_prev = &(listelm)->field.tqe_next;		\
+} while (0)
+
+#define	TAILQ_INSERT_BEFORE(listelm, elm, field) do {			\
+	(elm)->field.tqe_prev = (listelm)->field.tqe_prev;		\
+	(elm)->field.tqe_next = (listelm);				\
+	*(listelm)->field.tqe_prev = (elm);				\
+	(listelm)->field.tqe_prev = &(elm)->field.tqe_next;		\
+} while (0)
+
+#define TAILQ_REMOVE(head, elm, field) do {				\
+	if (((elm)->field.tqe_next) != NULL)				\
+		(elm)->field.tqe_next->field.tqe_prev =			\
+		    (elm)->field.tqe_prev;				\
+	else								\
+		(head)->tqh_last = (elm)->field.tqe_prev;		\
+	*(elm)->field.tqe_prev = (elm)->field.tqe_next;			\
+	_Q_INVALIDATE((elm)->field.tqe_prev);				\
+	_Q_INVALIDATE((elm)->field.tqe_next);				\
+} while (0)
+
+#define TAILQ_REPLACE(head, elm, elm2, field) do {			\
+	if (((elm2)->field.tqe_next = (elm)->field.tqe_next) != NULL)	\
+		(elm2)->field.tqe_next->field.tqe_prev =		\
+		    &(elm2)->field.tqe_next;				\
+	else								\
+		(head)->tqh_last = &(elm2)->field.tqe_next;		\
+	(elm2)->field.tqe_prev = (elm)->field.tqe_prev;			\
+	*(elm2)->field.tqe_prev = (elm2);				\
+	_Q_INVALIDATE((elm)->field.tqe_prev);				\
+	_Q_INVALIDATE((elm)->field.tqe_next);				\
+} while (0)
+
+/*
+ * Circular queue definitions.
+ */
+#define CIRCLEQ_HEAD(name, type)					\
+struct name {								\
+	struct type *cqh_first;		/* first element */		\
+	struct type *cqh_last;		/* last element */		\
+}
+
+#define CIRCLEQ_HEAD_INITIALIZER(head)					\
+	{ CIRCLEQ_END(&head), CIRCLEQ_END(&head) }
+
+#define CIRCLEQ_ENTRY(type)						\
+struct {								\
+	struct type *cqe_next;		/* next element */		\
+	struct type *cqe_prev;		/* previous element */		\
+}
+
+/*
+ * Circular queue access methods 
+ */
+#define	CIRCLEQ_FIRST(head)		((head)->cqh_first)
+#define	CIRCLEQ_LAST(head)		((head)->cqh_last)
+#define	CIRCLEQ_END(head)		((void *)(head))
+#define	CIRCLEQ_NEXT(elm, field)	((elm)->field.cqe_next)
+#define	CIRCLEQ_PREV(elm, field)	((elm)->field.cqe_prev)
+#define	CIRCLEQ_EMPTY(head)						\
+	(CIRCLEQ_FIRST(head) == CIRCLEQ_END(head))
+
+#define CIRCLEQ_FOREACH(var, head, field)				\
+	for((var) = CIRCLEQ_FIRST(head);				\
+	    (var) != CIRCLEQ_END(head);					\
+	    (var) = CIRCLEQ_NEXT(var, field))
+
+#define	CIRCLEQ_FOREACH_SAFE(var, head, field, tvar)			\
+	for ((var) = CIRCLEQ_FIRST(head);				\
+	    (var) != CIRCLEQ_END(head) &&				\
+	    ((tvar) = CIRCLEQ_NEXT(var, field), 1);			\
+	    (var) = (tvar))
+
+#define CIRCLEQ_FOREACH_REVERSE(var, head, field)			\
+	for((var) = CIRCLEQ_LAST(head);					\
+	    (var) != CIRCLEQ_END(head);					\
+	    (var) = CIRCLEQ_PREV(var, field))
+
+#define	CIRCLEQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar)	\
+	for ((var) = CIRCLEQ_LAST(head, headname);			\
+	    (var) != CIRCLEQ_END(head) && 				\
+	    ((tvar) = CIRCLEQ_PREV(var, headname, field), 1);		\
+	    (var) = (tvar))
+
+/*
+ * Circular queue functions.
+ */
+#define	CIRCLEQ_INIT(head) do {						\
+	(head)->cqh_first = CIRCLEQ_END(head);				\
+	(head)->cqh_last = CIRCLEQ_END(head);				\
+} while (0)
+
+#define CIRCLEQ_INSERT_AFTER(head, listelm, elm, field) do {		\
+	(elm)->field.cqe_next = (listelm)->field.cqe_next;		\
+	(elm)->field.cqe_prev = (listelm);				\
+	if ((listelm)->field.cqe_next == CIRCLEQ_END(head))		\
+		(head)->cqh_last = (elm);				\
+	else								\
+		(listelm)->field.cqe_next->field.cqe_prev = (elm);	\
+	(listelm)->field.cqe_next = (elm);				\
+} while (0)
+
+#define CIRCLEQ_INSERT_BEFORE(head, listelm, elm, field) do {		\
+	(elm)->field.cqe_next = (listelm);				\
+	(elm)->field.cqe_prev = (listelm)->field.cqe_prev;		\
+	if ((listelm)->field.cqe_prev == CIRCLEQ_END(head))		\
+		(head)->cqh_first = (elm);				\
+	else								\
+		(listelm)->field.cqe_prev->field.cqe_next = (elm);	\
+	(listelm)->field.cqe_prev = (elm);				\
+} while (0)
+
+#define CIRCLEQ_INSERT_HEAD(head, elm, field) do {			\
+	(elm)->field.cqe_next = (head)->cqh_first;			\
+	(elm)->field.cqe_prev = CIRCLEQ_END(head);			\
+	if ((head)->cqh_last == CIRCLEQ_END(head))			\
+		(head)->cqh_last = (elm);				\
+	else								\
+		(head)->cqh_first->field.cqe_prev = (elm);		\
+	(head)->cqh_first = (elm);					\
+} while (0)
+
+#define CIRCLEQ_INSERT_TAIL(head, elm, field) do {			\
+	(elm)->field.cqe_next = CIRCLEQ_END(head);			\
+	(elm)->field.cqe_prev = (head)->cqh_last;			\
+	if ((head)->cqh_first == CIRCLEQ_END(head))			\
+		(head)->cqh_first = (elm);				\
+	else								\
+		(head)->cqh_last->field.cqe_next = (elm);		\
+	(head)->cqh_last = (elm);					\
+} while (0)
+
+#define	CIRCLEQ_REMOVE(head, elm, field) do {				\
+	if ((elm)->field.cqe_next == CIRCLEQ_END(head))			\
+		(head)->cqh_last = (elm)->field.cqe_prev;		\
+	else								\
+		(elm)->field.cqe_next->field.cqe_prev =			\
+		    (elm)->field.cqe_prev;				\
+	if ((elm)->field.cqe_prev == CIRCLEQ_END(head))			\
+		(head)->cqh_first = (elm)->field.cqe_next;		\
+	else								\
+		(elm)->field.cqe_prev->field.cqe_next =			\
+		    (elm)->field.cqe_next;				\
+	_Q_INVALIDATE((elm)->field.cqe_prev);				\
+	_Q_INVALIDATE((elm)->field.cqe_next);				\
+} while (0)
+
+#define CIRCLEQ_REPLACE(head, elm, elm2, field) do {			\
+	if (((elm2)->field.cqe_next = (elm)->field.cqe_next) ==		\
+	    CIRCLEQ_END(head))						\
+		(head).cqh_last = (elm2);				\
+	else								\
+		(elm2)->field.cqe_next->field.cqe_prev = (elm2);	\
+	if (((elm2)->field.cqe_prev = (elm)->field.cqe_prev) ==		\
+	    CIRCLEQ_END(head))						\
+		(head).cqh_first = (elm2);				\
+	else								\
+		(elm2)->field.cqe_prev->field.cqe_next = (elm2);	\
+	_Q_INVALIDATE((elm)->field.cqe_prev);				\
+	_Q_INVALIDATE((elm)->field.cqe_next);				\
+} while (0)
+
+#endif	/* !_SYS_QUEUE_H_ */

reboot.c

@@ -0,0 +1,37 @@
+/* reboot for finit
+ *
+ * Copyright (c) 2009-2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <signal.h>
+
+int main (void)
+{
+        return !!kill(1, SIGINT);
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

services

@@ -0,0 +1,15 @@
+#!/bin/sh
+# Alternative boot method for other distributions than Debian 6.0
+# Place this file in a /etc/finit.d/ directory. At boot finit will
+# run all files, using its built-in run_parts(), in that directory.
+#
+# Here we chain load Debian /etc/rcS.d and /etc/rc2.d directories
+# in sequence using the standard run-parts tool.
+run-parts /etc/rcS.d --arg=start
+run-parts /etc/rc2.d --arg=start
+
+# You can also place other commands in this services file, akin to
+# the old finit /usr/sbin/services.sh (not supported anymore).
+#service acpid start
+#service networking start
+#service ssh start

sig.c

@@ -0,0 +1,189 @@
+/* Signal management - Be conservative with what finit responds to!
+ *
+ * Copyright (c) 2008-2010  Claudio Matsuoka <cmatsuoka@gmail.com>
+ * Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * The standard SysV init only responds to the following signals:
+ *	 SIGHUP
+ *	      Has the same effect as telinit q.
+ *
+ *	 SIGUSR1
+ *	      On receipt of this signals, init closes and re-opens  its	 control
+ *	      fifo, /dev/initctl. Useful for bootscripts when /dev is remounted.
+ *
+ *	 SIGINT
+ *	      Normally the kernel sends this signal to init when CTRL-ALT-DEL is
+ *	      pressed. It activates the ctrlaltdel action.
+ *
+ *	 SIGWINCH
+ *	      The kernel sends this signal when the KeyboardSignal key	is  hit.
+ *	      It activates the kbrequest action.
+ */
+
+#include <sys/reboot.h>
+#include <sys/wait.h>
+
+#include "finit.h"
+#include "helpers.h"
+#include "plugin.h"
+#include "private.h"
+#include "sig.h"
+
+static int stopped = 0;
+
+
+void do_shutdown (int sig)
+{
+	touch(SYNC_SHUTDOWN);
+
+	if (sdown)
+		run_interactive(sdown, "Calling shutdown hook: %s", sdown);
+
+	_d("Sending SIGTERM to all processes.");
+	kill(-1, SIGTERM);
+
+	sleep(1);
+	/* Call all shutdown hooks, this is the last call before rebooting... */
+	plugin_run_hooks(HOOK_SHUTDOWN);
+
+	_d("Sending SIGKILL to remaining processes.");
+	kill(-1, SIGKILL);
+
+	sync();
+	sync();
+	_d("Unmounting file systems, remounting / read-only.");
+	run("/bin/umount -fa 2>/dev/null");
+	run("/bin/mount -n -o remount,ro / 2>/dev/null");
+	run("/sbin/swapoff -ea");
+
+	_d("%s.", sig == SIGINT || sig == SIGUSR1 ? "Rebooting" : "Halting");
+	if (sig == SIGINT || sig == SIGUSR1)
+		reboot(RB_AUTOBOOT);
+
+	reboot(RB_POWER_OFF);
+}
+
+/*
+ * Shut down on INT USR1 USR2
+ */
+static void shutdown_handler(int sig, siginfo_t *info, void *UNUSED(ctx))
+{
+	_d("Rebooting on signal %d from %s (PID %d)",
+	   sig, pid_get_name(info->si_pid, NULL, 0), info->si_pid);
+
+	do_shutdown(sig);
+}
+
+/*
+ * SIGCHLD: one of our children has died
+ */
+static void chld_handler(int UNUSED(sig), siginfo_t *UNUSED(info), void *UNUSED(ctx))
+{
+	/* Do nothing, the svc_monitor() is the designated child reaper. */
+}
+
+/*
+ * SIGSTOP: Paused by user or netflash
+ */
+static void sigstop_handler(int sig, siginfo_t *info, void *UNUSED(ctx))
+{
+	_d("Received SIGSTOP(%d) from %s (PID %d)",
+	   sig, pid_get_name(info->si_pid, NULL, 0), info->si_pid);
+	touch(SYNC_STOPPED);
+	stopped ++;
+}
+static void sigcont_handler(int sig, siginfo_t *info, void *UNUSED(ctx))
+{
+	_d("Received SIGCONT(%d) from %s (PID %d)",
+	   sig, pid_get_name(info->si_pid, NULL, 0), info->si_pid);
+	stopped = 0;
+	remove(SYNC_STOPPED);
+}
+
+/*
+ * Is SIGSTOP asserted?
+ */
+int sig_stopped(void)
+{
+	return stopped;
+}
+
+/*
+ * Inital signal setup - ignore everything but SIGCHLD until we're capable of responding
+ */
+void sig_init(void)
+{
+	int i;
+	struct sigaction sa;
+
+	for (i = 1; i < NSIG; i++)
+		IGNSIG(sa, i, SA_RESTART);
+
+	SETSIG(sa, SIGCHLD, chld_handler, SA_RESTART);
+}
+
+/*
+ * Setup limited set of SysV compatible signals to respond to
+ */
+void sig_setup(void)
+{
+	struct sigaction sa;
+
+	_d("Setup signals");
+
+	/* Cleanup any stale finit control files */
+	remove(SYNC_SHUTDOWN);
+	remove(SYNC_STOPPED);
+
+	/* Standard SysV init calls ctrl-alt-delete handler */
+	SETSIG(sa, SIGINT,  shutdown_handler, 0);
+	SETSIG(sa, SIGPWR,  shutdown_handler, 0);
+
+	/* Ignore SIGUSR1/2 for now, only BusyBox init implements them as reboot+halt. */
+//	  SETSIG2(sa, SIGUSR1, reopen_initctl, 0);
+//	  SETSIG2(sa, SIGUSR2, pwrdwn_handler, 0);
+
+	/* Init must ignore SIGTERM. May otherwise get false SIGTERM in forked children! */
+	IGNSIG(sa, SIGTERM, 0);
+
+	/* Some C APIs may need SIGALRM for implementing timers. */
+	IGNSIG(sa, SIGALRM, 0);
+
+	/* We don't have any /etc/inittab yet, reread finit.conf? */
+	IGNSIG(sa, SIGHUP, 0);
+
+	/* Stopping init is a bit tricky. */
+	SETSIG(sa, SIGSTOP, sigstop_handler, 0);
+	SETSIG(sa, SIGTSTP, sigstop_handler, 0);
+	SETSIG(sa, SIGCONT, sigcont_handler, 0);
+
+	/* Disable CTRL-ALT-DELETE from kernel, we handle shutdown gracefully with SIGINT, above */
+	reboot(RB_DISABLE_CAD);
+	setsid();
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

sig.h

@@ -0,0 +1,70 @@
+/* Signal management - Be conservative with what finit responds to!
+ *
+ * Copyright (c) 2008-2010  Claudio Matsuoka <cmatsuoka@gmail.com>
+ * Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef FINIT_SIG_H_
+#define FINIT_SIG_H_
+
+#include <signal.h>
+
+#define SYNC_SHUTDOWN   "/var/lock/finit.shutdown"
+#define SYNC_STOPPED    "/var/lock/finit.stopped"
+
+#define SETSIG(sa, sig, fun, flags)			\
+	do {						\
+		sa.sa_sigaction = fun;			\
+		sa.sa_flags = SA_SIGINFO | flags;	\
+		sigemptyset(&sa.sa_mask);		\
+		sigaction(sig, &sa, NULL);		\
+	} while (0)
+
+#define IGNSIG(sa, sig, flags)			\
+	do {					\
+		sa.sa_handler = SIG_IGN;	\
+		sa.sa_flags = flags;		\
+		sigemptyset(&sa.sa_mask);	\
+		sigaction(sig, &sa, NULL);	\
+	} while (0)
+
+#define DFLSIG(sa, sig, flags)                  \
+        do {                                    \
+                sa.sa_handler = SIG_DFL;        \
+                sa.sa_flags = flags;            \
+                sigemptyset(&sa.sa_mask);       \
+                sigaction(sig, &sa, NULL);      \
+        } while (0)
+
+void do_shutdown    (int sig);
+int  sig_stopped    (void);
+void sig_init       (void);
+void sig_setup      (void);
+
+#endif /* FINIT_SIG_H_ */
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

strlcpy.c

@@ -0,0 +1,58 @@
+/*	$OpenBSD: strlcpy.c,v 1.11 2006/05/05 15:27:38 millert Exp $	*/
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+
+/*
+ * Copy src to string dst of size siz.  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz == 0).
+ * Returns strlen(src); if retval >= siz, truncation occurred.
+ */
+size_t
+strlcpy(char *dst, const char *src, size_t siz)
+{
+	char *d = dst;
+	const char *s = src;
+	size_t n = siz;
+
+	/* Copy as many bytes as will fit */
+	if (n != 0) {
+		while (--n != 0) {
+			if ((*d++ = *s++) == '\0')
+				break;
+		}
+	}
+
+	/* Not enough room in dst, add NUL and traverse rest of src */
+	if (n == 0) {
+		if (siz != 0)
+			*d = '\0';		/* NUL-terminate dst */
+		while (*s++)
+			;
+	}
+
+	return(s - src - 1);	/* count does not include NUL */
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  c-file-style: "bsd"
+ * End:
+ */

svc.c

@@ -0,0 +1,440 @@
+/* Finit service monitor and heneric API for managing svc_t structures
+ *
+ * Copyright (c) 2008-2010  Claudio Matsuoka <cmatsuoka@gmail.com>
+ * Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <string.h>
+#include <sys/wait.h>
+
+#include "finit.h"
+#include "helpers.h"
+#include "private.h"
+#include "sig.h"
+#include "lite.h"
+#include "svc.h"
+
+/* The registered services are kept in shared memory for easy read-only access
+ * by 3rd party APIs.  Mostly because of the ability to, from the outside, query
+ * liveness state of all daemons that should run. */
+static int svc_counter = 0;		/* Number of registered services to monitor. */
+static svc_t *services = NULL;          /* List of registered services, in shared memory. */
+
+
+/* Connect to/create shared memory area of registered servies */
+static void __connect_shm(void)
+{
+	if (!services) {
+		services = finit_svc_connect();
+		if (!services) {
+			/* This should never happen, but if it does we're probably
+			 * knee-deep in more serious problems already... */
+			_e("Failed allocating shared memory, error %d: %s", errno, strerror (errno));
+			abort();
+		}
+	}
+}
+
+/**
+ * svc_new - Create a new service object
+ *
+ * Returns:
+ * A pointer to an empty &svc_t object, or %NULL if out of empty slots.
+ */
+svc_t *svc_new(void)
+{
+	svc_t *svc = NULL;
+
+	__connect_shm();
+	if (svc_counter < MAX_NUM_SVC) {
+		svc = &services[svc_counter++];
+		memset(svc, 0, sizeof(*svc));
+	} else {
+		errno = ENOMEM;
+		return NULL;
+	}
+
+	return svc;
+}
+
+/**
+ * svc_find - Find a service object by its full path name
+ * @name: Full path name, e.g., /sbin/syslogd
+ *
+ * Returns:
+ * A pointer to an &svc_t object, or %NULL if not found.
+ */
+svc_t *svc_find(char *name)
+{
+	int i;
+
+	__connect_shm();
+	for (i = 0; i < svc_counter; i++) {
+		svc_t *svc = &services[i];
+
+		if (!strncmp(name, svc->cmd, strlen(svc->cmd))) {
+			_d("Found a matching svc for %s", name);
+			return svc;
+		}
+	}
+
+	return NULL;
+}
+
+/**
+ * svc_iterator - Iterates over all registered services.
+ * @restart: Get first &svc_t object by setting @restart
+ *
+ * Returns:
+ * The first &svc_t when @restart is set, otherwise the next &svc_t until
+ * the end when %NULL is returned.
+ */
+svc_t *svc_iterator(int restart)
+{
+	static int i = 0;
+
+	__connect_shm();
+	if (restart)
+		i = 0;
+
+	if (i >= svc_counter)
+		return NULL;
+
+	return &services[i++];
+}
+
+/**
+ * svc_register - Register a non-backgrounding service to be monitored
+ * @line:     A complete command line with -- separated description text
+ * @username: Optional username to run service as, or %NULL to run as root
+ *
+ * Actually, the @line can optionally start with a username, denoted by
+ * an @ character. Like this:
+ *
+ *   "service [@username] /path/to/daemon -- Description text"
+ *
+ * The [] brackets means the argument is optional. If the username is
+ * left out the daemon is started as root.
+ *
+ * Returns:
+ * POSIX OK(0) on success, or non-zero errno exit status on failure.
+ */
+int svc_register(char *line, char *username)
+{
+	int i = 0;
+	char *cmd, *desc;
+	svc_t *svc;
+
+	if (!line) {
+		_e("Invalid input argument.");
+		return errno = EINVAL;
+	}
+
+	desc = strstr(line, "-- ");
+	if (desc)
+		*desc = 0;
+
+	cmd = strtok(line, " ");
+	if (!cmd) {
+	incomplete:
+		_e("Incomplete service, cannot register.");
+		return errno = ENOENT;
+	}
+
+	if (cmd[0] == '@') {	/* @username */
+		username = &cmd[1];
+
+		/* Check if valid command follows... */
+		cmd = strtok(NULL, " ");
+		if (!cmd)
+			goto incomplete;
+	}
+
+	svc = svc_new();
+	if (!svc) {
+		_e("Out of memorym, cannot register service %s", cmd);
+		return errno = ENOMEM;
+	}
+
+	if (desc)
+		strlcpy(svc->desc, desc + 3, sizeof(svc->desc));
+	if (username)
+		strlcpy(svc->username, username, sizeof(svc->username));
+	strlcpy(svc->cmd, cmd, sizeof(svc->cmd));
+	strlcpy(svc->args[i++], cmd, sizeof(svc->args[0]));
+
+	while ((cmd = strtok(NULL, " ")))
+		strlcpy(svc->args[i++], cmd, sizeof(svc->args[0]));
+	svc->args[i][0] = 0;
+
+	return 0;
+}
+
+
+/**
+ * svc_enabled - Should the service run?
+ * @svc:   Pointer to &svc_t object
+ * @event: Dynamic event, opaque flag passed to callback
+ * @arg:   Event argument, used only by external service plugins.
+ *
+ * This method calls an associated service callback, if registered by a
+ * plugin, and returns the &svc_cmd_t status. If no plugin is registered
+ * the service is statically enabled in /etc/finit.conf and the result
+ * will always be %SVC_START.
+ *
+ * Returns:
+ * Either one of %SVC_START, %SVC_STOP, %SVC_RELOAD.
+ */
+svc_cmd_t svc_enabled(svc_t *svc, int event, void *arg)
+{
+	if (!svc) {
+		errno = EINVAL;
+		return SVC_STOP;
+	}
+
+	/* Is there a service plugin registered? */
+	if (svc->cb)
+		return svc->cb(svc, event, arg);
+
+	/* No service plugin, default to start, since listed in finit.conf */
+	return SVC_START;
+}
+
+static int is_norespawn(void)
+{
+	return  sig_stopped()            ||
+		fexist("/mnt/norespawn") ||
+		fexist("/tmp/norespawn");
+}
+
+void svc_monitor(void)
+{
+	pid_t lost;
+	svc_t *svc;
+
+	lost = waitpid(-1, NULL, WNOHANG);
+	if (lost < 1)
+		return;
+
+	if (fexist(SYNC_SHUTDOWN) || lost <= 1)
+		return;
+
+	/* Power user at the console, don't respawn tasks. */
+	if (is_norespawn())
+		return;
+
+	for (svc = svc_iterator(1); svc; svc = svc_iterator(0)) {
+		char *name = basename(svc->cmd);
+
+		if (lost != svc->pid)
+			continue;
+
+		_d("Ouch, lost pid %d - %s(%d)", lost, name, svc->pid);
+		if (sig_stopped()) {
+			_e("Stopped, not respawning killed processes.");
+			break;
+		}
+
+		/* Cleanup any lingering or semi-restarting tasks before respawning */
+		_d("Sending SIGTERM to service group %s", name);
+		procname_kill(name, SIGTERM);
+
+		/* Restarting lost service. */
+		if (svc_enabled(svc, 0, NULL))
+			svc_start(svc);
+
+		break;
+	}
+}
+
+/* Remember: svc_enabled() must be called before calling svc_start() */
+int svc_start(svc_t *svc)
+{
+	int respawn = svc->pid != 0;
+	pid_t pid;
+        sigset_t nmask, omask;
+	char *args[MAX_NUM_SVC_ARGS];
+
+	if (!svc)
+		return 0;
+
+	/* Don't try and start service if it doesn't exist. */
+	if (!fexist(svc->cmd)) {
+		char msg[80];
+
+		snprintf(msg, sizeof(msg), "Service %s does not exist!", svc->cmd);
+		print_desc("", msg);
+		print_result(1);
+
+		return 0;
+	}
+
+	/* Ignore if finit is SIGSTOP'ed */
+	if (is_norespawn())
+		return 0;
+
+	if (!respawn)
+		print_desc("Starting ", svc->desc);
+
+        /* Block sigchild while forking.  */
+        sigemptyset(&nmask);
+        sigaddset(&nmask, SIGCHLD);
+        sigprocmask(SIG_BLOCK, &nmask, &omask);
+
+	pid = fork();
+        sigprocmask(SIG_SETMASK, &omask, NULL);
+	if (pid == 0) {
+		int i = 0;
+		int uid = getuser(svc->username);
+		struct sigaction sa;
+
+                sigemptyset(&nmask);
+                sigaddset(&nmask, SIGCHLD);
+                sigprocmask(SIG_UNBLOCK, &nmask, NULL);
+
+		/* Reset signal handlers that were set by the parent process */
+                for (i = 1; i < NSIG; i++)
+			DFLSIG(sa, i, 0);
+
+		/* Set desired user */
+		if (uid >= 0)
+			setuid(uid);
+
+		/* Serve copy of args to process in case it modifies them. */
+		for (i = 0; svc->args[i][0] != 0 && i < MAX_NUM_SVC_ARGS; i++)
+			args[i] = svc->args[i];
+		args[i] = NULL;
+
+		if (debug) {
+			int fd;
+			char buf[CMD_SIZE] = "";
+
+			fd = open (CONSOLE, O_WRONLY | O_APPEND);
+			if (-1 != fd) {
+				dup2(STDOUT_FILENO, fd);
+				dup2(STDERR_FILENO, fd);
+			}
+
+			for (i = 0; args[i] && i < MAX_NUM_SVC_ARGS; i++) {
+				char arg[MAX_ARG_LEN];
+
+				snprintf(arg, sizeof(arg), "%s ", args[i]);
+				if ((sizeof(buf) - strlen(buf)) < strlen(arg))
+					strcat(buf, arg);
+			}
+			_e("%starting %s: %s", respawn ? "Res" : "S", svc->cmd, buf);
+		}
+
+		/* XXX: Maybe change to use execve() to be able to launch scripts? */
+		execv(svc->cmd, args);
+
+		/* Only reach this point if exec() fails. */
+		exit(0);
+	}
+	svc->pid = pid;
+
+	if (!respawn)
+		print_result(svc->pid > 1 ? 0 : 1);
+
+	return 0;
+}
+
+int svc_start_by_name(char *name)
+{
+	svc_t *svc = svc_find(name);
+
+	if (svc && svc_enabled(svc, 0, NULL))
+		return svc_start(svc);
+
+	return 1;
+}
+
+int svc_stop(svc_t *svc)
+{
+	int res = 1;
+
+	if (!svc) {
+		_e("Failed, no svc pointer.");
+		return 1;
+	}
+
+	if (svc->pid <= 1) {
+		_d("Bad PID %d for %s, SIGTERM", svc->pid, svc->desc);
+		svc->pid = 0;
+		return 1;
+	}
+
+	print_desc("Stopping ", svc->desc);
+	_d("Sending SIGTERM to pid:%d name:'%s'", svc->pid, pid_get_name(svc->pid, NULL, 0));
+	res = kill(svc->pid, SIGTERM);
+	print_result(res);
+	svc->pid = 0;
+
+	return res;
+}
+
+int svc_reload(svc_t *svc)
+{
+	/* Ignore if finit is SIGSTOP'ed */
+	if (is_norespawn())
+		return 0;
+
+	if (!svc) {
+		_e("Failed, no svc pointer.");
+		return 1;
+	}
+
+	if (svc->pid <= 1) {
+		_d("Bad PID %d for %s, SIGHUP", svc->pid, svc->cmd);
+		svc->pid = 0;
+		return 1;
+	}
+
+	_d("Sending SIGHUP to PID %d", svc->pid);
+	return kill(svc->pid, SIGHUP);
+}
+
+void svc_start_all(void)
+{
+	svc_t *svc;
+	svc_cmd_t cmd;
+
+	for (svc = svc_iterator(1); svc; svc = svc_iterator(0)) {
+		cmd = svc_enabled(svc, 0, NULL);
+		if (SVC_START == cmd  || (SVC_RELOAD == cmd && svc->pid == 0))
+			svc_start(svc);
+		else if (SVC_RELOAD == cmd)
+			svc_reload(svc);
+	}
+
+	_d("Running svc up hooks ...");
+	plugin_run_hooks(HOOK_SVC_UP);
+}
+
+
+/**
+ * Local Variables:
+ *  compile-command: "gcc -g -DUNITTEST -o unittest svc.c"
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */

svc.h

@@ -0,0 +1,106 @@
+/* Finit service monitor and heneric API for managing svc_t structures
+ *
+ * Copyright (c) 2008-2010  Claudio Matsuoka <cmatsuoka@gmail.com>
+ * Copyright (c) 2008-2012  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef FINIT_SVC_H_
+#define FINIT_SVC_H_
+
+#include <errno.h>
+#include <string.h>		/* strerror() */
+#include <sys/shm.h>		/* shmat() */
+#include <sys/types.h>		/* pid_t */
+
+typedef enum {
+	SVC_STOP = 0,		/* Disabled */
+	SVC_START,		/* Enabled */
+	SVC_RELOAD		/* Enabled, needs restart */
+} svc_cmd_t;
+
+#define FINIT_SHM_ID     0x494E4954  /* "INIT", see ascii(7) */
+#define MAX_ARG_LEN      64
+#define MAX_STR_LEN      64
+#define MAX_USER_LEN     16
+#define MAX_NUM_FDS      64	     /* Max number of I/O plugins */
+#define MAX_NUM_SVC      64	     /* Enough? */
+#define MAX_NUM_SVC_ARGS 16
+
+/* Default enable for all services, can be stopped by means
+ * of issuing an initctl call. E.g.
+ *   initctl <stop|start|restart> service */
+typedef struct svc {
+	pid_t	       pid;
+	int	       reload;
+	char	       cmd[MAX_ARG_LEN];
+	char	       args[MAX_NUM_SVC_ARGS][MAX_ARG_LEN];
+	char	       desc[MAX_STR_LEN];
+	char           username[MAX_USER_LEN];
+
+	/* For external plugins. If @cb is set a plugin is loaded.
+	 * @dynamic:      Set by plugins that want dynamic events.
+	 * @dynamic_stop: Set by plugins that allow dyn. events to stop it as well.
+	 * @private:      Can be used freely by plugin, e.g., to store "states".
+	 */
+	int            dynamic;
+	int            dynamic_stop;
+	int            private;
+	svc_cmd_t    (*cb)(struct svc *svc, int event, void *event_arg);
+} svc_t;
+
+typedef struct svc_map svc_map_t;
+
+/* Put services array in shm */
+static inline svc_t *finit_svc_connect(void)
+{
+	const long ID = FINIT_SHM_ID;
+	static void *ptr = (void *)-1;
+
+	if ((void *)-1 == ptr) {
+		ptr = shmat (shmget (ID, sizeof(svc_t) * MAX_NUM_SVC, 0600 | IPC_CREAT), NULL, 0);
+		if ((void *)-1 == ptr)
+			return NULL;
+	}
+
+	return (svc_t *)ptr;
+}
+
+svc_t    *svc_new           (void);
+svc_t    *svc_find          (char *name);
+svc_t    *svc_iterator      (int restart);
+
+int       svc_register      (char *line, char *username);
+int       svc_id_by_name    (char *name);
+svc_cmd_t svc_enabled	    (svc_t *svc, int event, void *arg);
+int       svc_start         (svc_t *svc);
+int       svc_start_by_name (char *name);
+int       svc_stop          (svc_t *svc);
+int       svc_reload        (svc_t *svc);
+
+#endif	/* FINIT_SVC_H_ */
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "linux"
+ * End:
+ */