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https://github.com/troglobit/finit.git
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finit.c:
o Perform signal setup as soon as possible, no need to do any
mounting of /proc or /sys beforehand
o Move signal setup and callbacks to a file of its own
o Use more #defines for hard coded strings
o Use a more neutral default hostname
signal.c:
o New file, for setup and signal handlers
o Add support for SIGSTOP/SIGSTP and SIGCONT. This pauses finit
respawning of xinit/shell. Useful for, e.g., debugging
o Document each ignored and handled signal better
o Disable SIGUSR1 and SIGUSR2 for now, will be reenabled later
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
132 lines
3.7 KiB
C
132 lines
3.7 KiB
C
/*
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Improved fast init
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Copyright (c) 2008 Claudio Matsuoka
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef FINIT_H__
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#define FINIT_H__
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <syslog.h>
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#define DO_LOG(level, fmt, args...) \
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{ \
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openlog("finit", LOG_CONS | LOG_PID, LOG_DAEMON); \
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syslog(LOG_DEBUG, fmt, ##args); \
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closelog(); \
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}
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#define DEBUG(fmt, args...) DO_LOG(LOG_DEBUG, fmt, ##args)
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#define ERROR(fmt, args...) DO_LOG(LOG_CRIT, fmt, ##args)
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/* Distribution configuration */
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#if defined DIST_MDV /* Mandriva */
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#define RANDOMSEED "/var/lib/random-seed"
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#define SYSROOT "/sysroot"
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#define CONSOLE "/dev/console"
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#define GETTY "/usr/bin/openvt /sbin/mingetty tty2"
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#define RUNPARTS "/usr/bin/run-parts"
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#define REMOUNT_ROOTFS_RW
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#define MAKE_DEVICES
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#define MAKE_DEV_VCS
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#define PAM_CONSOLE
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#define LISTEN_INITCTL
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#define RUNLEVEL 5
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#define USE_MESSAGE_BUS
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#elif defined DIST_EEEXUBUNTU /* eeeXubuntu */
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#define RANDOMSEED "/var/lib/urandom/random-seed"
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#define SYSROOT "/sysroot"
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#define CONSOLE "/dev/console"
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#define GETTY "/usr/bin/openvt /sbin/getty 38400 tty2"
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#define RUNPARTS "/bin/run-parts"
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#define REMOUNT_ROOTFS_RW
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#define MAKE_DEVICES
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#define TOUCH_ETC_NETWORK_RUN_IFSTATE
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#define LISTEN_INITCTL
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#else /* original Eeepc distribution */
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#define RANDOMSEED "/var/lib/urandom/random-seed"
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#define SYSROOT "/mnt"
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#define CONSOLE "/dev/console"
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#define GETTY "/usr/bin/openvt /sbin/getty 38400 tty2"
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#define RUNPARTS "/bin/run-parts"
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#define TOUCH_ETC_NETWORK_RUN_IFSTATE
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#define USE_ETC_RESOLVCONF_RUN
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#endif
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#define SYNC_SHUTDOWN "/var/lock/finit.shutdown"
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#define SYNC_STOPPED "/var/lock/finit.stopped"
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#ifndef DEFUSER
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#define DEFUSER "user"
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#endif
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#ifndef DEFHOST
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#define DEFHOST "noname"
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#endif
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#define LINE_SIZE 1024
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#define CMD_SIZE 256
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#define USERNAME_SIZE 16
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#define HOSTNAME_SIZE 32
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#ifndef touch
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#define touch(x) mknod((x), S_IFREG|0644, 0)
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#endif
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#ifndef chardev
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#define chardev(x,m,maj,min) mknod((x), S_IFCHR|(m), makedev((maj),(min)))
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#endif
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#ifndef blkdev
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#define blkdev(x,m,maj,min) mknod((x), S_IFBLK|(m), makedev((maj),(min)))
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#endif
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#ifndef fexist
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#define fexist(x) (access(x, F_OK) != -1)
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#endif
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/* Match one command. */
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#define MATCH_CMD(l,c,x) \
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((!strncmp((l), (c), strlen((c)))) && ((x) = (l) + strlen((c))))
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#define _d(fmt, args...) do { if (debug) { fprintf(stderr, "%s(): " fmt "\n", __func__, ##args); } } while (0)
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extern int debug;
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void do_shutdown(int sig);
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void sig_init(void);
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void listen_initctl(void);
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#endif /* FINIT_H__ */
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/**
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* Local Variables:
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* version-control: t
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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