54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/*-
|
|
* Copyright (c) 2006, 2008, 2009, 2013
|
|
* Thorsten Glaser <tg@mirbsd.org>
|
|
* 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 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 "sh.h"
|
|
|
|
__RCSID("$MirOS: src/bin/mksh/strlcpy.c,v 1.8 2013/11/05 22:10:15 tg Exp $");
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
#undef strlcpy
|
|
size_t
|
|
strlcpy(char *dst, const char *src, size_t siz)
|
|
{
|
|
const char *s = src;
|
|
|
|
if (siz == 0)
|
|
goto traverse_src;
|
|
|
|
/* copy as many chars as will fit */
|
|
while (--siz && (*dst++ = *s++))
|
|
;
|
|
|
|
/* not enough room in dst */
|
|
if (siz == 0) {
|
|
/* safe to NUL-terminate dst since we copied <= siz-1 chars */
|
|
*dst = '\0';
|
|
traverse_src:
|
|
/* traverse rest of src */
|
|
while (*s++)
|
|
;
|
|
}
|
|
|
|
/* count does not include NUL */
|
|
return ((size_t)(s - src - 1));
|
|
}
|