pkgsrc/devel/bmake/files/strlcpy.c
bsiegert e0e1b45d71 Import bmake-20110606. Many changes, among them:
- unit-tests/modts now works on MirBSD
  - meta mode
  - ApplyModifiers: when we parse a variable which is not the entire modifier
    string, or not followed by ':', do not consider it as containing modifiers.
  - when long modifiers fail to match, check sysV style.
  - :hash - cheap 32bit hash of value
  - :localtime, :gmtime - use value as format string for strftime.
  - fix for use after free() in CondDoExists().
  - boot-strap (TOOL_DIFF): aparently at least on linux distro
    formats the output of 'type' differently - so eat any "()"
  - correct sysV substitution handling of empty lhs and variable
  - correct exists() check for dir with trailing /
  - correct handling of modifiers for non-existant variables during evaluation
    of conditionals.
  - fix for incorrect .PARSEDIR when .OBJDIR is re-computed after makefiles
    have been read.
  - fix example of :? modifier in man page.
  - sigcompat.c: convert to ansi so we can use higher warning levels.
  - parse.c: SunOS 5.8 at least does not have MAP_FILE
  - use mmap(2) if available, for reading makefiles
  - to ensure unit-tests results match, need to control LC_ALL as well as LANG.
  - if stale dependency is an IMPSRC, search via .PATH
  - machine.sh: like os.sh, allow for uname -p producing useless drivel
  - boot-strap: document configure knobs for meta and filemon.
2011-06-18 22:17:55 +00:00

63 lines
1.7 KiB
C

/* $NetBSD: strlcpy.c,v 1.1.1.1 2011/06/18 22:18:07 bsiegert Exp $ */
/* $OpenBSD: strlcpy.c,v 1.7 2003/04/12 21:56:39 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 TODD C. MILLER DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL TODD C. MILLER 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.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifndef HAVE_STRLCPY
#include <sys/cdefs.h>
#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;
if (!dst || !src)
return 0;
/* Copy as many bytes as will fit */
if (n != 0 && --n != 0) {
do {
if ((*d++ = *s++) == 0)
break;
} while (--n != 0);
}
/* 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 */
}
#endif