Update ChangeLog and bump version for v1.7.0 release

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

.travis.yml

@@ -4,7 +4,13 @@ language: c
 
 # Some of the autotests may use sudo, so use non-dockerized build atm.
 # http://stackoverflow.com/questions/26299552/travis-sudo-is-disabled
-sudo: true
+#sudo: true
+sudo: false
+
+# Test build with both GCC and Clang (LLVM)
+compiler:
+  - gcc
+  - clang
 
 #  - make test
 script:

ChangeLog.md

@@ -3,6 +3,72 @@ Change Log
 
 All notable changes to the project are documented in this file.
 
+[v1.7.0][] - 2016-06-05
+-----------------------
+
+### Changes
+
+- Add support for GNU `strdupa()`, for [Inadyn][] on NetBSD.
+- Add support for GNU `strndupa()` and `strnlen()`
+
+### Fixes
+
+- Fix `mkpath()` to handle creating relative directories.
+
+
+[v1.6.0][] - 2016-05-13
+-----------------------
+
+### Changes
+
+- Add support for NetBSD `fparaseln()` for the benefit of [Mg][]
+- Add support for OpenBSD `reallocarray()` for the benefit of [Mg][]
+- Constify `fisdir()` argument
+
+
+[v1.5.1][] - 2016-04-17
+-----------------------
+
+Minor fix release.
+
+### Changes
+- Update README.md, add help when libite is used in autotools projects.
+  Spell checking and minor cleanup.
+
+### Fixes
+- Activate use of `utimensat()` when `pidfile()` is called multiple
+  times.  This reduces the overhead of calling open+write+close to
+  simply updating the mtime of the PID file.
+- Westermo fixes for `fcopyfile()`: nothing copied on embedded PPC
+  system when using `tmpfile()` as source.
+
+
+[v1.5.0][] - 2016-03-20
+-----------------------
+
+This release changes the header file namespace.  Apologies for any
+problems this may cause!
+
+### Changes
+- Change namespace for header files: `libite/` to `lite/`, e.g. using
+  `pkg-config` your C program must now `#include <lite/lite.h>`
+- Update `pidfile()` to use `utimensat()` to update atime+mtime instead
+  of opening and writing PID again.  Less overhead and nanonsecond res.
+
+
+[v1.4.4][] - 2016-02-23
+-----------------------
+
+### Changes
+- Add `ibite.pc.in` for `pkg-config` support.
+
+### Fixes
+- Fix issue #3: `tempfile()` fails with bad `O_TMPFILE` on some embedded
+  targets, in particular PowerPC.  On systems with older GLIBC but with
+  a sufficiently new kernel `O_TMPFILE` is missing and the local libite
+  definition was wrong, hard coded for x86.  Fixed by Johan Askerin.
+
+
 [v1.4.3][] - 2016-02-02
 -----------------------
 
@@ -111,7 +177,12 @@ All notable changes to the project are documented in this file.
 Initial extraction of frog DNA from [Finit][].  See [README][] for API details.
 
 
-[UNRELEASED]: https://github.com/troglobit/libite/compare/v1.4.3...HEAD
+[UNRELEASED]: https://github.com/troglobit/libite/compare/v1.7.0...HEAD
+[v1.7.0]: https://github.com/troglobit/libite/compare/v1.6.0...v1.7.0
+[v1.6.0]: https://github.com/troglobit/libite/compare/v1.5.1...v1.6.0
+[v1.5.1]: https://github.com/troglobit/libite/compare/v1.5.0...v1.5.1
+[v1.5.0]: https://github.com/troglobit/libite/compare/v1.4.4...v1.5.0
+[v1.4.4]: https://github.com/troglobit/libite/compare/v1.4.3...v1.4.4
 [v1.4.3]: https://github.com/troglobit/libite/compare/v1.4.2...v1.4.3
 [v1.4.2]: https://github.com/troglobit/libite/compare/v1.4.1...v1.4.2
 [v1.4.1]: https://github.com/troglobit/libite/compare/v1.4.0...v1.4.1
@@ -122,6 +193,8 @@ Initial extraction of frog DNA from [Finit][].  See [README][] for API details.
 [v1.1.0]: https://github.com/troglobit/libite/compare/v1.0.0...v1.1.0
 [v1.0.0]: https://github.com/troglobit/libite/compare/TAIL...v1.0.0
 [Finit]:  https://github.com/troglobit/finit/
+[Inadyn]: https://github.com/troglobit/inadyn/
+[Mg]:     https://github.com/troglobit/mg
 [README]: https://github.com/troglobit/libite/blob/v1.0.0/README.md
 
 <!--

HACKING.md

@@ -0,0 +1,84 @@
+Maintenance and Release Checklist
+=================================
+
+Maintenance
+-----------
+
+* Leverage GitHub issues for milestone planning
+* Reference issues from GitHub pull requests to alert issue subscribers
+* Bump library ABI version just before release!
+
+
+Release Checklist
+-----------------
+
+* Update ChangeLog, follow http://keepachangelog.com/ loosely
+  - Inform users in a plain language of changes and bug fixes
+  - Do *not* copy-paste GIT commit logs!
+  - Order entrys according to importance, most relevant first
+* Do we need to bump the ABI version? (Probably, see below)
+* Tag
+* Push last commit(s) *and* tags to GitHub
+* Make release
+
+        make distclean
+        ./autogen.sh
+        ./configure
+		make release
+
+* Create new release in GitHub releases page
+* Copy and paste ChangeLog entry, check any stale links!
+* Upload release tarball and MD5 files
+
+
+Library Versioning
+------------------
+
+Libite (-lite) relies on GNU Libtool for building the library.  For a
+user of the library it is important to maintain a clear ABI versioning
+scheme.  This is not the same as the library version, but rather the
+library "compatibility level".
+
+The ABI version is specified in `src/Makefile.am` and looks like this:
+
+    libite_la_LDFLAGS = -version-info 0:0:0
+                                       \ \ `-- age
+                                        \ `--- revision
+                                         `---- current
+
+It must be updated according to the [GNU Libtool recommendations][1]:
+
+1. Start with version information of `0:0:0` for each libtool library.
+2. Update the version information only immediately before a public
+   release of your software.  More frequent updates are unnecessary, and
+   only guarantee that the current interface number gets larger faster.
+3. If the library *source code has changed at all* since the last update,
+   then increment revision (`c:r:a` becomes `c:r+1:a`).
+4. If any *interfaces have been added, removed, or changed* since the
+   last update, increment current, and set revision to 0.
+5. If any *interfaces have been added* since the last public release,
+   then increment age.
+6. If any *interfaces have been removed or changed* since the last
+   public release, then set age to 0.
+
+Usually, non-developers have no interest in running development versions
+(releases are frequent enough), and developers are expected to know how
+to juggle versions.  In such an ideal world, it is good enough to bump
+the library version just prior to a release, point 2.
+
+However, if releases are few and far between, distributors may start to
+use snapshots.  When a distributor uses a snapshot, the distributor has
+to handle the library version manually.  Things can get ugly when the
+distributor has released an intermediate version with a bumped library
+version, and when the official release is bumped to that version, the
+distributor will then have to bump the library version for the official
+release, and it can be confusing if someone reports bugs on versions
+that you didn't even know existed.
+
+The problem with bumping the version with every change is that if your
+interface is not finished, the version number might run away, and it
+looks pretty bad if a library is at version 262.  It kind of tells the
+user that the library interface is volatile, which is not good for
+business.
+
+[1]: https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html

Makefile.am

@@ -1,15 +1,19 @@
 ACLOCAL_AMFLAGS     = -I m4
 
 lib_LTLIBRARIES     = libite.la
-pkginclude_HEADERS  = lite.h queue.h conio.h tree.h
-libite_la_SOURCES   = chomp.c copyfile.c dir.c fexist.c fisdir.c fmode.c fsendfile.c	\
-			ifconfig.c lfile.c makepath.c pidfile.c pidfilefn.c progress.c	\
-			rsync.c strlcpy.c strlcat.c strtonum.c tempfile.c tree.c
+pkgincludedir       = $(includedir)/lite
+pkginclude_HEADERS  = lite.h queue.h conio.h tree.h strlite.h strdupa.h strndupa.h strnlen.h
+libite_la_SOURCES   = chomp.c copyfile.c dir.c fexist.c fisdir.c fmode.c fparseln.c	\
+		      fsendfile.c ifconfig.c lfile.c makepath.c pidfile.c pidfilefn.c	\
+		      progress.c reallocarray.c rsync.c strlcpy.c strlcat.c strtonum.c	\
+		      tempfile.c tree.c
 
 libite_la_CPPFLAGS  = -D_GNU_SOURCE
 libite_la_CFLAGS    = -W -Wall -Wextra
-libite_la_LDFLAGS   = $(AM_LDFLAGS) -version-info 2:1:0
+libite_la_LDFLAGS   = $(AM_LDFLAGS) -version-info 2:3:0
 
+pkgconfigdir        = $(libdir)/pkgconfig
+pkgconfig_DATA      = libite.pc
 doc_DATA            = README.md LICENSE
 EXTRA_DIST          = README.md LICENSE ChangeLog.md
 

README.md

@@ -2,16 +2,32 @@
 ===========================
 [![Travis Status][]][Travis]
 
+
+Table of Contents
+-----------------
+
+* [Introduction](#introduction)
+* [Using -lite](#using--lite)
+* [Helper Macros](#helper-macros)
+* [Generic Functions](#generic-functions)
+* [OpenBSD Functions](#openbsd-functions)
+* [Build & Install](#origin--references)
+* [TODO](#todo)
+
+
+Introduction
+------------
+
 Libite is a lightweight library of *frog DNA*.  It can be used to fill
 the gaps in any dinosaur project.  It holds useful functions and macros
 developed by both [Finit][1] and the [OpenBSD][2] project.  Most notably
 the string functions: [strlcpy(3)][3], [strlcat(3)][3] and the highly
 useful *BSD [sys/queue.h][4] and [sys/tree.h][7] API's.
 
-Libite aims to fill in the gaps missing in GLIBC/EGLIBC.  (It does not
-aimo to become another [GLIB][5] though.)  One such gap in GLIBC is the
-missing `_SAFE` macros in `sys/queue.h` — highly recommended when
-traversing lists to delete/free nodes.
+Libite is the frog DNA missing in GNU libc.  However, -lite does not aim
+to become another [GLIB][5]!  One noticeable gap in GLIBC is the missing
+`_SAFE` macros in the BSD `sys/queue.h` API — highly recommended
+when traversing lists to delete/free nodes.
 
 The code is open sourced under a mix of the [MIT/X11 license][MIT], the
 [ISC license][ISC] used by OpenBSD, and [BSD licenses][BSD], all of them
@@ -22,6 +38,38 @@ For an introduction to why Libite happened, and how you can use it, see
 [this blog post][6].
 
 
+Using -lite
+-----------
+
+Libite is by default installed as a library and a set of include files.
+To prevent clashing with include files of the same name `-lite` employs
+an include file namespace `lite/`, which is strongly recommended to use
+in your applications:
+
+    #include <lite/lite.h>
+    #include <lite/conio.h>
+    #include <lite/queue.h>
+    #include <lite/tree.h>
+
+The output from the `pkg-config` tool holds no surprises in this regard:
+
+    $ pkg-config --libs --static --cflags libite
+    -I/usr/local/include -L/usr/local/lib -lite
+
+The prefix path `/usr/local/` shown here is only the default.  Use the
+`configure` script to select a different prefix when installing libite.
+
+For GNU autotools based projects, use the following in `configure.ac`:
+
+    # Check for required libraries
+    PKG_CHECK_MODULES([lite], [libite >= 1.5.0])
+
+and in your `Makefile.am`:
+
+    proggy_CFLAGS = $(lite_CFLAGS)
+    proggy_LDADD  = $(lite_LIBS)
+
+
 Helper Macros
 -------------
 
@@ -40,15 +88,15 @@ Helper Macros
 
 - `erase(path)`
 
-  Erase file/directory with `remove()`.  Errors on stderr
+  Erase file/directory with `remove()`.  Errors on `stderr`
 
 - `makedir(path)`
 
-  Create directory, like `mkdir()`.  Errors on stderr
+  Create directory, like `mkdir()`.  Errors on `stderr`
 
 - `makefifo(path)`
 
-  Create a FIFO, like `mkfifo()`.  Errors on stderr
+  Create a FIFO, like `mkfifo()`.  Errors on `stderr`
 
 - `min(a,b)`/`max(a,b)`
 
@@ -56,7 +104,7 @@ Helper Macros
 
 - `touch(path)`
 
-  Create a file, or update mtime.  Errors on stderr
+  Create a file, or update mtime.  Errors on `stderr`
 
 - `S_ISEXEC(mode_t m)`
 
@@ -72,7 +120,7 @@ Helper Macros
 
 - `ISOTHER(word,bit)`
 
-  Is any other bits, except bit, in (integer) word set?
+  Are any other bits, except bit, in (integer) word set?
 
 - `SETBIT(word,bit)`
 
@@ -116,11 +164,11 @@ Generic Functions
 
 - `fexist(file)`
 
-  Check for the existance of a file, returns True(1) or False(0).
+  Check for the existence of a file, returns True(1) or False(0).
 
 - `fisdir(path)`
 
-  Check for the existance of a directory, returns True(1) or False(0).
+  Check for the existence of a directory, returns True(1) or False(0).
 
 - `fmode(file)`
 
@@ -135,7 +183,7 @@ Generic Functions
 - `ifconfig(ifname, addr, mask, up)`
 
   Basic ifconfig like operations on an interface.  Only supports IPv4
-  adresses.  Note that mask is not CIDR notation.
+  addresses.  Note that mask is not CIDR notation.
 
 - `lfopen(file, sep)`, `lfclose(lf)`
 
@@ -144,7 +192,7 @@ Generic Functions
 
 - `lftok(lf)`
 
-  Read tokens, delimeted by `sep`, from file opened with `lfopen()`.
+  Read tokens, delimited by `sep`, from file opened with `lfopen()`.
 
 - `lfgetkey(lf, key)`
 
@@ -187,7 +235,7 @@ Generic Functions
   existence of this file, so make sure to have your signal handlers
   properly setup before calling this function.
 
-  The pidfile is removed when the program exits, using an `atexit()`
+  The PID file is removed when the program exits, using an `atexit()`
   handler.  However, depending on how the program terminates the file
   may still exist even though the program is no longer running.  This
   is only a problem for clients.
@@ -234,10 +282,34 @@ Generic Functions
   set.  The `path` argument should be a directory.
 
 
-OpenBSD Functions
------------------
+GNU Functions
+-------------
 
-The following are popular OpenBSD functions and highly useful macros.
+The following are useful GNU functions, that do not exist on *BSD, and
+some other platforms.
+
+- `strdupa(str)`
+
+  http://man7.org/linux/man-pages/man3/strdupa.3.html
+
+- `strndupa(str)`
+
+  http://man7.org/linux/man-pages/man3/strndupa.3.html
+
+- `strnlen(str, lim)`
+
+  http://man7.org/linux/man-pages/man3/strnlen.3.html
+
+
+OpenBSD/NetBSD/FreeBSD Functions
+--------------------------------
+
+The following are popular functions and highly useful macros from the
+*BSD world of UNIX that are sadly missing on Linux.
+
+- `fparseln(fp, *len, *lineno, delim, flags)`
+
+  http://man.openbsd.org/OpenBSD-current/man3/fparseln.3
 
 - `pidfile(basename)`
 
@@ -248,6 +320,10 @@ The following are popular OpenBSD functions and highly useful macros.
   file `__pidfile_name`, similar to `__progname`.  See previous section
   for details.
 
+- `reallocarray(ptr, nmemb, size)`
+
+  http://man.openbsd.org/OpenBSD-current/man3/reallocarray.3
+
 - `strlcpy(dst, src, len)`
 
   http://www.openbsd.org/cgi-bin/man.cgi/OpenBSD-current/man3/strlcpy.3
@@ -274,13 +350,18 @@ The following are popular OpenBSD functions and highly useful macros.
 Build & Install
 ---------------
 
-The library is built for and developed on GNU/Linux systems as a light
-weight utility library.  Libite (LITE) employs the de facto standard GNU
-configure and build system:
+This library was initially built for and developed on GNU/Linux systems
+as a light weight utility library, these days NetBSD should also work.
+Libite (LITE) employs the de facto standard GNU configure and build
+system:
 
     ./configure
-    make all
-    make install
+    make -j5
+    make install-strip
+
+**Note:** When checking code from GitHub, use <kbd>./autogen.sh</kbd> to
+generate a `configure` script.  It is a generated file and otherwise only
+included in released tarballs.
 
 
 TODO

TODO.md

@@ -0,0 +1,7 @@
+TODO ... in no particular order
+===============================
+
+* Investigate adding FreeBSD pidfile_open() et al
+* Investigate FreeBSD libutil library, could be useful for porting between unices
+
+

chomp.c

@@ -57,7 +57,6 @@ int main(void)
 /**
  * Local Variables:
  *  compile-command: "make V=1 -f chomp.mk"
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

configure.ac

@@ -1,19 +1,14 @@
-# Use v2.61 for backwards compat with Ubuntu 12.04 LTS
-AC_PREREQ([2.61])
-AC_INIT(libite, 1.4.3, https://github.com/troglobit/libite/issues)
+AC_INIT(libite, 1.7.0, https://github.com/troglobit/libite/issues)
 AM_INIT_AUTOMAKE([1.11 foreign no-dist-gzip dist-xz])
 AM_SILENT_RULES([yes])
 
 AC_CONFIG_SRCDIR(lite.h)
 AM_CONFIG_HEADER(config.h)
-AC_CONFIG_FILES([Makefile])
+AC_CONFIG_FILES([Makefile libite.pc])
 AC_CONFIG_MACRO_DIR([m4])
 
 AC_PROG_CC
 AM_PROG_AR
 LT_INIT
 
-AC_HEADER_STDC
-AC_C_CONST
-
 AC_OUTPUT

conio.h

@@ -75,7 +75,6 @@
 
 /**
  * Local Variables:
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

copyfile.c

@@ -237,27 +237,23 @@ int movefile(char *src, char *dst)
  */
 int fcopyfile(FILE *src, FILE *dst)
 {
-	int ret;
-	char *buffer;
+	char *buf;
 
 	if (!src || !dst) {
 		errno = EINVAL;
 		return -1;
 	}
 
-	buffer = malloc(BUFSIZ);
-	if (!buffer)
+	buf = malloc(BUFSIZ);
+	if (!buf)
 		return -1;
 
-	ret = do_copy(fileno(src), fileno(dst), BUFSIZ, buffer, BUFSIZ);
-	if (ret > 0)
-		ret = 0;
-	else if (errno)
-		ret = -1;
+	while (fgets(buf, BUFSIZ, src))
+		fputs(buf, dst);
+	
+	free(buf);
 
-	free(buffer);
-
-	return ret;
+	return 0;
 }
 
 #ifdef UNITTEST
@@ -267,7 +263,7 @@ int main(void)
 {
 	int i = 0;
 	char *files[] = {
-		"/etc/passwd", "/tmp/tok", "/tmp/tok",
+		"/etc/passwd", "/tmp/mypwd", "/tmp/mypwd",
 		"/etc/passwd", "/tmp/", "/tmp/passwd",
 		"/etc/passwd", "/tmp", "/tmp/passwd",
 		NULL
@@ -319,7 +315,6 @@ int main(void)
 /**
  * Local Variables:
  *  compile-command: "make V=1 -f copyfile.mk"
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

dir.c

@@ -222,7 +222,6 @@ int main(int argc, char *argv[])
 /**
  * Local Variables:
  *  compile-command: "make V=1 -f dir.mk"
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

fexist.c

@@ -74,7 +74,6 @@ int main(void)
 /**
  * Local Variables:
  *  compile-command: "make V=1 -f fexist.mk"
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

fisdir.c

@@ -32,7 +32,7 @@
  * Returns:
  * %TRUE(1) if the file exists and is a directory, otherwise %FALSE(0).
  */
-int fisdir(char *file)
+int fisdir(const char *file)
 {
 	struct stat sb;
 
@@ -73,7 +73,6 @@ int main(void)
 /**
  * Local Variables:
  *  compile-command: "make V=1 -f fisdir.mk"
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

fmode.c

@@ -50,7 +50,6 @@ mode_t fmode(char *file)
 
 /**
  * Local Variables:
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

fparseln.c

@@ -0,0 +1,202 @@
+/*	$NetBSD: fparseln.c,v 1.10 2009/10/21 01:07:45 snj Exp $	*/
+
+/*
+ * Copyright (c) 1997 Christos Zoulas.  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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: fparseln.c,v 1.10 2009/10/21 01:07:45 snj Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "lite.h"
+
+#define _DIAGASSERT(t)
+
+static int isescaped(const char *, const char *, int);
+
+/* isescaped():
+ *	Return true if the character in *p that belongs to a string
+ *	that starts in *sp, is escaped by the escape character esc.
+ */
+static int
+isescaped(const char *sp, const char *p, int esc)
+{
+	const char     *cp;
+	size_t		ne;
+
+	_DIAGASSERT(sp != NULL);
+	_DIAGASSERT(p != NULL);
+
+	/* No escape character */
+	if (esc == '\0')
+		return 0;
+
+	/* Count the number of escape characters that precede ours */
+	for (ne = 0, cp = p; --cp >= sp && *cp == esc; ne++)
+		continue;
+
+	/* Return true if odd number of escape characters */
+	return (ne & 1) != 0;
+}
+
+
+/* fparseln():
+ *	Read a line from a file parsing continuations ending in \
+ *	and eliminating trailing newlines, or comments starting with
+ *	the comment char.
+ */
+char *
+fparseln(FILE *fp, size_t *size, size_t *lineno, const char str[3], int flags)
+{
+	static const char dstr[3] = { '\\', '\\', '#' };
+
+	ssize_t	s;
+	size_t len, ptrlen;
+	char   *buf;
+	char   *ptr, *cp;
+	int	cnt;
+	char	esc, con, nl, com;
+
+	_DIAGASSERT(fp != NULL);
+
+	len = 0;
+	buf = NULL;
+	ptrlen = 0;
+	ptr = NULL;
+	cnt = 1;
+
+	if (str == NULL)
+		str = dstr;
+
+	esc = str[0];
+	con = str[1];
+	com = str[2];
+	/*
+	 * XXX: it would be cool to be able to specify the newline character,
+	 * getdelim(3) does let us, but supporting it would diverge from BSDs.
+	 */
+	nl  = '\n';
+
+	flockfile(fp);
+
+	while (cnt) {
+		cnt = 0;
+
+		if (lineno)
+			(*lineno)++;
+
+		s = getline(&ptr, &ptrlen, fp);
+		if (s < 0)
+			break;
+
+		if (s && com) {		/* Check and eliminate comments */
+			for (cp = ptr; cp < ptr + s; cp++)
+				if (*cp == com && !isescaped(ptr, cp, esc)) {
+					s = cp - ptr;
+					cnt = s == 0 && buf == NULL;
+					break;
+				}
+		}
+
+		if (s && nl) { 		/* Check and eliminate newlines */
+			cp = &ptr[s - 1];
+
+			if (*cp == nl)
+				s--;	/* forget newline */
+		}
+
+		if (s && con) {		/* Check and eliminate continuations */
+			cp = &ptr[s - 1];
+
+			if (*cp == con && !isescaped(ptr, cp, esc)) {
+				s--;	/* forget continuation char */
+				cnt = 1;
+			}
+		}
+
+		if (s == 0) {
+			/*
+			 * nothing to add, skip realloc except in case
+			 * we need a minimal buf to return an empty line
+			 */
+			if (cnt || buf != NULL)
+				continue;
+		}
+
+		if ((cp = realloc(buf, len + s + 1)) == NULL) {
+			funlockfile(fp);
+			free(buf);
+			free(ptr);
+			return NULL;
+		}
+		buf = cp;
+
+		(void) memcpy(buf + len, ptr, s);
+		len += s;
+		buf[len] = '\0';
+	}
+
+	funlockfile(fp);
+	free(ptr);
+
+	if ((flags & FPARSELN_UNESCALL) != 0 && esc && buf != NULL &&
+	    strchr(buf, esc) != NULL) {
+		ptr = cp = buf;
+		while (cp[0] != '\0') {
+			int skipesc;
+
+			while (cp[0] != '\0' && cp[0] != esc)
+				*ptr++ = *cp++;
+			if (cp[0] == '\0' || cp[1] == '\0')
+				break;
+
+			skipesc = 0;
+			if (cp[1] == com)
+				skipesc += (flags & FPARSELN_UNESCCOMM);
+			if (cp[1] == con)
+				skipesc += (flags & FPARSELN_UNESCCONT);
+			if (cp[1] == esc)
+				skipesc += (flags & FPARSELN_UNESCESC);
+			if (cp[1] != com && cp[1] != con && cp[1] != esc)
+				skipesc = (flags & FPARSELN_UNESCREST);
+
+			if (skipesc)
+				cp++;
+			else
+				*ptr++ = *cp++;
+			*ptr++ = *cp++;
+		}
+		*ptr = '\0';
+		len = strlen(buf);
+	}
+
+	if (size)
+		*size = len;
+	return buf;
+}

fsendfile.c

@@ -112,7 +112,6 @@ int main(void)
 /**
  * Local Variables:
  *  compile-command: "make V=1 -f fsendfile.mk"
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

ifconfig.c

@@ -85,7 +85,6 @@ int ifconfig(char *ifname, char *addr, char *mask, int up)
 
 /**
  * Local Variables:
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

lfile.c

@@ -228,7 +228,6 @@ int main(void)
 /**
  * Local Variables:
  *  compile-command: "make V=1 -f lfile.mk"
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

libite.pc.in

@@ -0,0 +1,12 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: @PACKAGE@
+Description: Frog DNA, basically
+Version: @VERSION@
+Requires:
+Libs: -L${libdir} -lite
+Cflags: -I${includedir}
+

lite.h

@@ -28,18 +28,28 @@
 #include <err.h>
 #include <stdio.h>
 #include <stdint.h>    /* uint8_t, uint16_t, uint32_t, INT32_MAX, etc. */
-#include <string.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/param.h> /* MAX(), isset(), setbit(), TRUE, FALSE, et consortes. :-) */
 #include <unistd.h>
+#include "strlite.h"
+
+/*
+ * fparseln() specific operation flags.
+ */
+#define FPARSELN_UNESCESC	0x01
+#define FPARSELN_UNESCCONT	0x02
+#define FPARSELN_UNESCCOMM	0x04
+#define FPARSELN_UNESCREST	0x08
+#define FPARSELN_UNESCALL	0x0f
 
 typedef struct lfile lfile_t;
 
 char   *chomp      (char *str);
+char   *fparseln   (FILE *, size_t *, size_t *, const char[3], int);
 
 int     fexist     (char *file);
-int     fisdir     (char *file);
+int     fisdir     (const char *file);
 mode_t  fmode      (char *file);
 
 FILE   *tempfile   (void);
@@ -68,15 +78,7 @@ int     pidfile_signal(const char *pidfile, int signal);
 pid_t   pidfile_read  (const char *pidfile);
 pid_t   pidfile_poll  (const char *pidfile);
 
-#ifndef strlcpy
-size_t  strlcpy    (char *dst, const char *src, size_t siz);
-#endif
-#ifndef strlcat
-size_t  strlcat    (char *dst, const char *src, size_t siz);
-#endif
-#ifndef strtonum
-long long strtonum (const char *numstr, long long minval, long long maxval, const char **errstrp);
-#endif
+void   *reallocarray(void *optr, size_t nmemb, size_t size);
 
 int tree(char *path, int show_perms);
 
@@ -142,63 +144,6 @@ static inline int fisslashdir(char *dir)
    return 0;
 }
 
-/* Convert string to natural number (0-2147483647), returns -1 on error. */
-static inline int atonum(const char *str)
-{
-	int val = -1;
-	const char *errstr;
-
-	if (str) {
-		val = strtonum(str, 0, INT32_MAX, &errstr);
-		if (errstr)
-			return -1;
-	}
-
-	return val;
-}
-
-/* Validate string, non NULL and not zero length */
-static inline int string_valid(const char *s)
-{
-   return s && strlen(s);
-}
-
-/* Relaxed comparison, e.g., sys_string_match("small", "smaller") => TRUE */
-static inline int string_match(const char *a, const char *b)
-{
-   size_t min = MIN(strlen(a), strlen(b));
-
-   return !strncasecmp(a, b, min);
-}
-
-/* Strict comparison, e.g., sys_string_match("small", "smaller") => FALSE */
-static inline int string_compare (const char *a, const char *b)
-{
-   return strlen(a) == strlen(b) && !strcmp(a, b);
-}
-
-/* Strict comparison, like sys_string_compare(), but case insensitive,
- * e.g., sys_string_match("small", "SmAlL") => TRUE
- */
-static inline int string_case_compare (const char *a, const char *b)
-{
-   return strlen (a) == strlen (b) && !strcasecmp (a, b);
-}
-
-#define min(a,b)				\
-	({					\
-		__typeof__ (a) _a = (a);	\
-		__typeof__ (b) _b = (b);	\
-		_a < _b ? _a : _b;		\
-	})
-
-#define max(a,b)				\
-	({					\
-		__typeof__ (a) _a = (a);	\
-		__typeof__ (b) _b = (b);	\
-		_a > _b ? _a : _b;		\
-	})
-
 /* Compat */
 #define copy_filep(src,dst)        fcopyfile(src,dst)
 #define pidfile_read_pid(file)     pifile_read(file)
@@ -208,7 +153,6 @@ static inline int string_case_compare (const char *a, const char *b)
 
 /**
  * Local Variables:
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

makepath.c

@@ -25,12 +25,14 @@
 
 int mkpath(char *dir, mode_t mode)
 {
+	struct stat sb;
+
 	if (!dir) {
 		errno = EINVAL;
 		return 1;
 	}
 
-	if (strlen(dir) == 1 && dir[0] == '/')
+	if (!stat(dir, &sb))
 		return 0;
 
 	mkpath(dirname(strdupa(dir)), mode);
@@ -96,6 +98,7 @@ int main(void)
 		"/tmp/a/",
 		"/tmp/a/b",
 		"/tmp/a/c/",
+		"../../sometestdir/arpa/inet",
 		NULL
 	};
 
@@ -117,7 +120,6 @@ int main(void)
 /**
  * Local Variables:
  *  compile-command: "make V=1 -f makepath.mk"
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

pidfile.c

@@ -1,3 +1,4 @@
+/*	Updated by troglobit for libite/finit/uftpd projects 2016/03/19 */
 /*	$OpenBSD: pidfile.c,v 1.11 2015/06/03 02:24:36 millert Exp $	*/
 /*	$NetBSD: pidfile.c,v 1.4 2001/02/19 22:43:42 cgd Exp $	*/
 
@@ -30,6 +31,7 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <sys/stat.h>		/* utimensat() */
 #include <sys/types.h>
 #include <errno.h>
 #include <paths.h>
@@ -50,16 +52,25 @@ int
 pidfile(const char *basename)
 {
 	int save_errno;
+	int atexit_already;
 	pid_t pid;
 	FILE *f;
 
 	if (basename == NULL)
 		basename = __progname;
 
+	pid = getpid();
+	atexit_already = 0;
+
 	if (pidfile_path != NULL) {
+		if (pid == pidfile_pid) {
+			utimensat(0, pidfile_path, NULL, 0);
+			return 0;
+		}
 		free(pidfile_path);
 		pidfile_path = NULL;
 		__pidfile_name = NULL;
+		atexit_already = 1;
 	}
 
 	/* _PATH_VARRUN includes trailing / */
@@ -74,7 +85,6 @@ pidfile(const char *basename)
 		return (-1);
 	}
 
-	pid = getpid();
 	if (fprintf(f, "%ld\n", (long)pid) <= 0 || fflush(f) != 0) {
 		save_errno = errno;
 		(void) fclose(f);
@@ -90,7 +100,7 @@ pidfile(const char *basename)
 	 * LITE extension, no need to set up another atexit() handler
 	 * if user only called us to update the mtime of the PID file
 	 */
-	if (pidfile_pid == pid)
+	if (atexit_already)
 		return (0);
 
 	pidfile_pid = pid;

pidfilefn.c

@@ -122,28 +122,110 @@ int pidfile_signal(const char *pidfile, int signal)
 /********************************* UNIT TESTS ************************************/
 #ifdef UNITTEST
 #include <paths.h>
+#include <stdarg.h>
+#include <time.h>
 #include "lite.h"
 
 extern char *__progname;
 static char PIDFILE[42];
+static int verbose = 0;
+static struct stat before, after;
+
+static int test(int result, const char *fmt, ...)
+{
+	char buf[80];
+	size_t len;
+	va_list ap;
+	const char success[] = " \e[1m[ OK ]\e[0m\n";
+	const char failure[] = " \e[7m[FAIL]\e[0m\n";
+	const char dots[] = " .....................................................................";
+
+	va_start(ap, fmt);
+	len = vsnprintf(buf, sizeof(buf), fmt, ap);
+	va_end(ap);
+
+	write(STDERR_FILENO, buf, len);
+	write(STDERR_FILENO, dots, 60 - len); /* pad with dots. */
+
+	if (!result)
+		write(STDERR_FILENO, success, strlen(success));
+	else
+		write(STDERR_FILENO, failure, strlen(failure));
+
+	return result;
+}
+
+static inline int timespec_newer(const struct timespec *a, const struct timespec *b)
+{
+	if (a->tv_sec != b->tv_sec)
+		return a->tv_sec > b->tv_sec;
+
+	return a->tv_nsec > b->tv_nsec;
+}
+
+char *timespec2str(struct timespec *ts, char *buf, size_t len)
+{
+	size_t ret, pos;
+	struct tm t;
+
+	memset(buf, 0, len);
+
+	tzset();
+	if (localtime_r(&(ts->tv_sec), &t) == NULL)
+		return buf;
+
+	ret = strftime(buf, len, "%F %T", &t);
+	if (ret == 0)
+		return buf;
+	len -= ret - 1;
+
+	pos  = strlen(buf);
+	len -= pos;
+	snprintf(&buf[pos], len, ".%09ld", ts->tv_nsec);
+
+	return buf;
+}
 
 static void sigterm_handler(int UNUSED(signo))
 {
-	printf("Exiting ...\n");
+	if (verbose)
+		printf("Exiting ...\n");
 }
 
 static void sigalrm_handler(int UNUSED(signo))
 {
-	printf("Testing pidfile() ...\n");
 	pidfile(NULL);
-
 	if (!fexist(PIDFILE))
-		err(1, "pidfile() failed creating %s", PIDFILE);
+		err(1, "failed creating %s", PIDFILE);
+	stat(PIDFILE, &before);
 }
 
-int main(void)
+static int mtime()
 {
-	char cmd[80];
+	int ret;
+	char buf[80];
+
+	/* Must sleep a while here otherwise we execute too fast => no mtime change :-( */
+	usleep(10000);
+
+	if (verbose)
+		printf("Calling pidfile() again to update mtime ...\n");
+	pidfile(NULL);
+	stat(PIDFILE, &after);
+
+	ret = timespec_newer(&after.st_mtim, &before.st_mtim);
+	if (verbose) {
+		printf("Before: %s\n", timespec2str(&before.st_mtim, buf, sizeof(buf)));
+		printf("After : %s\n", timespec2str(&after.st_mtim, buf, sizeof(buf)));
+	}
+
+	return !ret;
+}
+
+int main(int argc, char *argv[])
+{
+	if (argc > 1 && !strcmp(argv[1], "-v"))
+		verbose = 1;
 
 	snprintf(PIDFILE, sizeof(PIDFILE), "%s%s.pid", _PATH_VARRUN, __progname);
 
@@ -151,36 +233,19 @@ int main(void)
 	signal(SIGALRM, sigalrm_handler);
 	alarm(1);
 
-	printf("Testing pidfile_poll() ...\n");
-	if (!pidfile_poll(PIDFILE))
-		printf("Timed out!\n");
-	else
-		printf("We got signal!\n");
+	return     test(pidfile_poll(PIDFILE) != getpid(), "Testing pidfile_poll()")
+		|| test(strcmp(__pidfile_name, PIDFILE),   "Testing __pidfile_name vs guessed PID filename")
+		|| test(mtime(),                           "Testing mtime update of followup pidfile() call")
+		|| test(pidfile_signal(PIDFILE, SIGTERM),  "Testing signalling ourselves")
+		;
 
-	printf("Reading pid file, should be %d ...\n", getpid());
-        printf("=> %d\n", pidfile_read(PIDFILE));
-
-	printf("\nComparing __pidfile_name with our guessed PID filename ...\n");
-	printf("strcmp(\"%s\",\n       \"%s\") => %s\n\n", __pidfile_name, PIDFILE,
-	       !strcmp(__pidfile_name, PIDFILE) ? "OK" : "FAIL");
-
-	/* Occular verification that calling pidfile() again updates mtime */
-	snprintf(cmd, sizeof(cmd), "ls -l --full-time %s", PIDFILE);
-	system(cmd);
-	printf("Before ^^ pidfile() vv after ...\n");
-	pidfile(NULL);
-	system(cmd);
-	
-        printf("Signalling ourselves ...\n");
-
-	return pidfile_signal(PIDFILE, SIGTERM);
+	return 0;
 }
-#endif  /* UTEST_PIDFN */
+#endif /* UNITTEST */
 
 /**
  * Local Variables:
  *  compile-command: "make V=1 -f pidfilefn.mk"
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

progress.c

@@ -168,7 +168,6 @@ int main(void)
 /**
  * Local Variables:
  *  compile-command: "make V=1 -f progress.mk"
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

reallocarray.c

@@ -0,0 +1,38 @@
+/*	$OpenBSD: reallocarray.c,v 1.2 2014/12/08 03:45:00 bcook Exp $	*/
+/*
+ * Copyright (c) 2008 Otto Moerbeek <otto@drijf.net>
+ *
+ * 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 <errno.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+/*
+ * This is sqrt(SIZE_MAX+1), as s1*s2 <= SIZE_MAX
+ * if both s1 < MUL_NO_OVERFLOW and s2 < MUL_NO_OVERFLOW
+ */
+#define MUL_NO_OVERFLOW ((size_t)1 << (sizeof(size_t) * 4))
+
+void *
+reallocarray(void *optr, size_t nmemb, size_t size)
+{
+	if ((nmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
+	    nmemb > 0 && SIZE_MAX / nmemb < size) {
+		errno = ENOMEM;
+		return NULL;
+	}
+	return realloc(optr, size * nmemb);
+}

rsync.c

@@ -306,7 +306,6 @@ int main(int argc, char *argv[])
 /**
  * Local Variables:
  *  compile-command: "make V=1 -f rsync.mk"
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

rules.mk

@@ -1,30 +1,12 @@
-.PHONY: all clean distclean
-
-# Figure out root of library, unless used as submodule
-ROOTDIR    ?= $(shell pwd)
-
-CC         ?= $(CROSS)gcc
-AR         ?= $(CROSS)ar
-STRIP      ?= $(CROSS)strip
-INSTALL    := install --backup=off
-STRIPINST  := $(INSTALL) -s --strip-program=$(CROSS)strip -m 0755
-
+CFLAGS     += -g -O0
 CPPFLAGS   += -D_GNU_SOURCE
-ARFLAGS     = crus
 
-# Default to silent build, use V=1 to get verbose mode.
 ifeq ($V,1)
-Q           =
-PRINT       = @true
-REDIRECT    =
-MAKEFLAGS   =
 VERBOSE     = -v
+REDIRECT    =
 else
-Q           = @
-PRINT       = @printf
-REDIRECT    = >/dev/null
-MAKEFLAGS   = --no-print-directory --silent
 VERBOSE     =
+REDIRECT    = >/dev/null
 endif
 
 # Some tests may need to be run as root, e.g. pidfile()
@@ -34,35 +16,15 @@ else
 SUDO        =
 endif
 
-# Default install paths
-prefix     ?= /usr/local
-libdir     ?= $(prefix)/lib
-datadir    ?= $(prefix)/share/doc/$(LIBNAME)
-incdir     ?= $(prefix)/include
+all: $(TARGET)
 
-# Pretty printing and GCC -M for auto dep files
-%.o: %.c
-	$(PRINT) "  CC      $(subst $(ROOTDIR)/,,$(shell pwd)/)$@\n"
-	$(Q)$(CC) $(CFLAGS) $(CPPFLAGS) -c -MMD -MP -o $@ $<
-
-%: %.o
-	$(PRINT) "  LINK    $(subst $(ROOTDIR)/,,$(shell pwd)/)$@\n"
-	$(Q)$(CC) $(CFLAGS) $(LDFLAGS) -Wl,-Map,$@.map -o $@ $^ $(LDLIBS$(LDLIBS-$(@)))
-
-.PHONY: %.test
 %.test: %.c
-	$(PRINT) "  TEST    $(subst $(ROOTDIR)/,,$(shell pwd)/)$(@:.test=)\n"
-	$(Q)$(CC) $(CFLAGS) $(CPPFLAGS) -g -o $@ -DUNITTEST $< $(OBJS)
-	$(Q)$(RM) $(OBJS)
-	$(Q)$(SUDO) ./$@ $(VERBOSE) $(REDIRECT)
-
-
-# Default build rules for both main and unit test makefiles
-all:: $(TARGET)
+	@printf "  TEST    $@\n"
+	@$(CC) $(CFLAGS) $(CPPFLAGS) -g -o $@ -DUNITTEST $< $(OBJS)
+	@$(RM) $(OBJS)
+	@$(SUDO) ./$@ $(VERBOSE) $(REDIRECT)
 
 clean::
-	-$(Q)$(RM) $(OBJS) $(DEPS) $(TARGET) $(SOLIB) $(STATICLIB)
-
-distclean::
-	-$(Q)$(RM) $(JUNK) unittest *.o *.a *.so* *.unittest *.test
+	-@$(RM) $(OBJS) $(DEPS) $(TARGET) $(SOLIB) $(STATICLIB)
+	-@$(RM) $(JUNK) unittest *.o *.a *.so* *.unittest *.test
 

strdupa.h

@@ -0,0 +1,55 @@
+/* ==========================================================================
+ * strdupa.h - Re-implementation of glibc strdupa.
+ * --------------------------------------------------------------------------
+ * Copyright (c) 2009  William Ahern
+ *
+ * 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 GNU_STRING_STRDUPA_H
+#define GNU_STRING_STRDUPA_H
+
+
+#if !defined(HAVE_STRDUPA)
+#if defined(strdupa)
+#define HAVE_STRDUPA	1
+#endif
+#endif
+
+
+#if !HAVE_STRDUPA
+#if defined(__GNUC__)
+#include <stddef.h>	/* size_t */
+#include <string.h>	/* memcpy(3) strlen(3) */
+
+#define strdupa(src) (__extension__ ({			\
+	size_t len_	= strlen(src);			\
+	char *dst_	= __builtin_alloca(len_ + 1);	\
+	dst_[len_]	= '\0';				\
+	(char *)memcpy(dst_, src, len_);		\
+}))
+
+#else  /* If not GCC, e.g. Clang */
+#error strdupa() may use an unsupported GNU C API, please forward any fix to maintainer, cheers!
+#endif /* __GNUC__ */
+#endif /* !HAVE_STRDUPA */
+
+
+#endif /* GNU_STRING_STRDUPA_H */

strlite.h

@@ -0,0 +1,100 @@
+/* Collection of frog DNA
+ *
+ * Copyright (c) 2008-2016  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 LITE_STRING_H_
+#define LITE_STRING_H_
+
+#include <string.h>
+#include "strdupa.h"
+#include "strndupa.h"
+#include "strnlen.h"
+
+#ifndef strlcpy
+size_t  strlcpy    (char *dst, const char *src, size_t siz);
+#endif
+#ifndef strlcat
+size_t  strlcat    (char *dst, const char *src, size_t siz);
+#endif
+#ifndef strtonum
+long long strtonum (const char *numstr, long long minval, long long maxval, const char **errstrp);
+#endif
+
+/* Convert string to natural number (0-2147483647), returns -1 on error. */
+static inline int atonum(const char *str)
+{
+	int val = -1;
+	const char *errstr;
+
+	if (str) {
+		val = strtonum(str, 0, INT32_MAX, &errstr);
+		if (errstr)
+			return -1;
+	}
+
+	return val;
+}
+
+/* Validate string, non NULL and not zero length */
+static inline int string_valid(const char *s)
+{
+   return s && strlen(s);
+}
+
+/* Relaxed comparison, e.g., sys_string_match("small", "smaller") => TRUE */
+static inline int string_match(const char *a, const char *b)
+{
+   size_t min = MIN(strlen(a), strlen(b));
+
+   return !strncasecmp(a, b, min);
+}
+
+/* Strict comparison, e.g., sys_string_match("small", "smaller") => FALSE */
+static inline int string_compare(const char *a, const char *b)
+{
+   return strlen(a) == strlen(b) && !strcmp(a, b);
+}
+
+/* Strict comparison, like sys_string_compare(), but case insensitive,
+ * e.g., sys_string_match("small", "SmAlL") => TRUE
+ */
+static inline int string_case_compare(const char *a, const char *b)
+{
+   return strlen (a) == strlen (b) && !strcasecmp (a, b);
+}
+
+#define min(a,b)				\
+	({					\
+		__typeof__ (a) _a = (a);	\
+		__typeof__ (b) _b = (b);	\
+		_a < _b ? _a : _b;		\
+	})
+
+#define max(a,b)				\
+	({					\
+		__typeof__ (a) _a = (a);	\
+		__typeof__ (b) _b = (b);	\
+		_a > _b ? _a : _b;		\
+	})
+
+
+#endif /* LITE_STRING_H_ */

strndupa.h

@@ -0,0 +1,58 @@
+/* ==========================================================================
+ * strndupa.h - Re-implementation of glibc strndupa.
+ * --------------------------------------------------------------------------
+ * Copyright (c) 2009  William Ahern
+ *
+ * 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 GNU_STRING_STRNDUPA_H
+#define GNU_STRING_STRNDUPA_H
+
+
+#if !defined(HAVE_STRNDUPA)
+#if defined(strndupa)
+#define HAVE_STRNDUPA	1
+#endif
+#endif
+
+
+#if !HAVE_STRNDUPA
+#if defined(__GNUC__)
+#include <stddef.h>	/* size_t */
+
+#include <string.h>	/* memcpy(3) */
+
+#include <gnu/string/strnlen.h>
+
+#define strndupa(src, lim) (__extension__ ({		\
+	size_t len_	= strnlen(src, lim);		\
+	char *dst_	= __builtin_alloca(len_ + 1);	\
+	dst_[len_]	= '\0';				\
+	(char *)memcpy(dst_, src, len_);		\
+}))
+
+#else  /* If not GCC, e.g. Clang */
++#error strndupa() may use an unsupported GNU C API, please forward any fix to maintainer, cheers!
+#endif /* __GNUC__ */
+#endif /* !HAVE_STRNDUPA */
+
+
+#endif /* GNU_STRING_STRNDUPA_H */

strnlen.h

@@ -0,0 +1,44 @@
+/* strnlen.h - Re-implementation of GLIBC strnlen()
+ *
+ * Copyright (c) 2016  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.
+ */
+
+#ifndef LITE_STRNLEN_H
+#define LITE_STRNLEN_H
+
+#if !defined(HAVE_STRNLEN)
+#if defined(strnlen)
+#define HAVE_STRNLEN	1
+#endif
+#endif
+
+
+#if !HAVE_STRNLEN
+#include <stddef.h>	/* size_t */
+
+#define strnlen(str, lim) xstrnlen(str, lim)
+
+static inline size_t xstrnlen(const char *str, size_t lim)
+{
+	size_t i = 0;
+
+	while (str[i] && i < lim)
+		i++;
+
+	return i;
+}
+#endif
+
+#endif /* LITE_STRNLEN_H */

tempfile.c

@@ -17,16 +17,9 @@
 
 #include <paths.h>
 #include <fcntl.h>		/* O_TMPFILE requires -D_GNU_SOURCE */
-#include <linux/version.h>
-#include <stdlib.h>		/* mkstemp() */
 #include <stdio.h>		/* fdopen() */
 #include <sys/stat.h>		/* umask() */
 
-#ifndef  O_TMPFILE		/* Too old GLIBC or kernel */
-#warning O_TMPFILE missing on your system, tempfile() may not work!
-#define  O_TMPFILE 020200000	/* Define and let it fail at runtime */
-#endif
-
 /**
  * tempfile - A secure tmpfile() replacement
  *
@@ -42,7 +35,7 @@
  */
 FILE *tempfile(void)
 {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)
+#ifdef O_TMPFILE	  /* Only on Linux, with fairly recent (G)LIBC */
 	int fd;
 	mode_t oldmask;
 
@@ -54,8 +47,7 @@ FILE *tempfile(void)
 
 	return fdopen(fd, "rw");
 #else
-#warning Too old kernel, reverting to wrap unsafe tmpfile() ...
-	return tmpfile();
+	return tmpfile(); /* Fallback on older GLIBC/Linux and actual UNIX systems */
 #endif
 }
 
@@ -70,7 +62,6 @@ int main(void)
 /**
  * Local Variables:
  *  compile-command: "make V=1 -f tempfile.mk"
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End:

tree.c

@@ -144,7 +144,6 @@ int main(void)
 /**
  * Local Variables:
  *  compile-command: "make V=1 -f tree.mk"
- *  version-control: t
  *  indent-tabs-mode: t
  *  c-file-style: "linux"
  * End: