Bump version for v1.6.0 release

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

ChangeLog.md

@@ -3,6 +3,32 @@ Change Log
 
 All notable changes to the project are documented in this file.
 
+[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
 -----------------------
@@ -11,7 +37,6 @@ 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
@@ -139,7 +164,9 @@ problems this may cause!
 Initial extraction of frog DNA from [Finit][].  See [README][] for API details.
 
 
-[UNRELEASED]: https://github.com/troglobit/libite/compare/v1.5.0...HEAD
+[UNRELEASED]: https://github.com/troglobit/libite/compare/v1.6.0...HEAD
+[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
@@ -152,6 +179,7 @@ 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/
+[Mg]:     https://github.com/troglobit/mg
 [README]: https://github.com/troglobit/libite/blob/v1.0.0/README.md
 
 <!--

Makefile.am

@@ -3,9 +3,10 @@ ACLOCAL_AMFLAGS     = -I m4
 lib_LTLIBRARIES     = libite.la
 pkgincludedir       = $(includedir)/lite
 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
+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

README.md

@@ -2,6 +2,22 @@
 ===========================
 [![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
@@ -10,7 +26,7 @@ useful *BSD [sys/queue.h][4] and [sys/tree.h][7] API's.
 
 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 tje BSD `sys/queue.h` API — highly recommended
+`_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
@@ -26,9 +42,9 @@ 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 a
-include file namespace `lite/`, which is strongly recommended to use in
-your applications:
+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>
@@ -40,6 +56,19 @@ 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
 -------------
@@ -59,15 +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)`
 
@@ -75,7 +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)`
 
@@ -91,7 +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)`
 
@@ -135,11 +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)`
 
@@ -154,7 +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)`
 
@@ -163,7 +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)`
 
@@ -206,7 +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.
@@ -253,10 +282,15 @@ Generic Functions
   set.  The `path` argument should be a directory.
 
 
-OpenBSD Functions
------------------
+OpenBSD/NetBSD/FreeBSD Functions
+--------------------------------
 
-The following are popular OpenBSD functions and highly useful macros.
+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)`
 
@@ -267,6 +301,10 @@ 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
@@ -298,8 +336,8 @@ weight utility library.  Libite (LITE) employs the de facto standard GNU
 configure and build system:
 
     ./configure
-    make all
-    make install
+    make -j5
+    make install-strip
 
 
 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

@@ -1,6 +1,4 @@
-# Use v2.61 for backwards compat with Ubuntu 12.04 LTS
-AC_PREREQ([2.61])
-AC_INIT(libite, 1.5.0, https://github.com/troglobit/libite/issues)
+AC_INIT(libite, 1.6.0, https://github.com/troglobit/libite/issues)
 AM_INIT_AUTOMAKE([1.11 foreign no-dist-gzip dist-xz])
 AM_SILENT_RULES([yes])
 
@@ -13,7 +11,4 @@ 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:

lite.h

@@ -34,12 +34,22 @@
 #include <sys/param.h> /* MAX(), isset(), setbit(), TRUE, FALSE, et consortes. :-) */
 #include <unistd.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);
@@ -68,6 +78,8 @@ int     pidfile_signal(const char *pidfile, int signal);
 pid_t   pidfile_read  (const char *pidfile);
 pid_t   pidfile_poll  (const char *pidfile);
 
+void   *reallocarray(void *optr, size_t nmemb, size_t size);
+
 #ifndef strlcpy
 size_t  strlcpy    (char *dst, const char *src, size_t siz);
 #endif
@@ -208,7 +220,6 @@ 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

@@ -117,7 +117,6 @@ 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

@@ -63,8 +63,7 @@ pidfile(const char *basename)
 	atexit_already = 0;
 
 	if (pidfile_path != NULL) {
-		if (0) { //pid == pidfile_pid) {
-			printf("Updating mtime ...\n");
+		if (pid == pidfile_pid) {
 			utimensat(0, pidfile_path, NULL, 0);
 			return 0;
 		}

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:

tempfile.c

@@ -71,7 +71,6 @@ 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: