cfengine  3.15.4
About: CFEngine is a configuration management system for configuring and maintaining Unix-like computers (using an own high level policy language). Community version.
  Fossies Dox: cfengine-3.15.4.tar.gz  ("unofficial" and yet experimental doxygen-generated source code documentation)  

strlcpy.c
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1 /* $OpenBSD: strlcpy.c,v 1.10 2005/08/08 08:05:37 espie Exp $ */
2 
3 /*
4  * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #ifdef HAVE_CONFIG_H
20 # include <config.h>
21 #endif
22 
23 #include <sys/types.h>
24 #include <string.h>
25 
26 size_t strlcpy(char *dst, const char *src, size_t siz);
27 
28 /*
29  * Copy src to string dst of size siz. At most siz-1 characters
30  * will be copied. Always NUL terminates (unless siz == 0).
31  * Returns strlen(src); if retval >= siz, truncation occurred.
32  */
33 size_t
34 strlcpy(char *dst, const char *src, size_t siz)
35 {
36  char *d = dst;
37  const char *s = src;
38  size_t n = siz;
39 
40  /* Copy as many bytes as will fit */
41  if (n != 0) {
42  while (--n != 0) {
43  if ((*d++ = *s++) == '\0')
44  break;
45  }
46  }
47 
48  /* Not enough room in dst, add NUL and traverse rest of src */
49  if (n == 0) {
50  if (siz != 0)
51  *d = '\0'; /* NUL-terminate dst */
52  while (*s++)
53  ;
54  }
55 
56  return(s - src - 1); /* count does not include NUL */
57 }
size_t strlcpy(char *dst, const char *src, size_t siz)
Definition: strlcpy.c:34