2 * strlcpy.c Copy strings.
9 * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
11 * Permission to use, copy, modify, and distribute this software for any
12 * purpose with or without fee is hereby granted, provided that the above
13 * copyright notice and this permission notice appear in all copies.
15 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
16 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
17 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
18 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
20 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
21 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24 #include <freeradius-devel/autoconf.h>
28 #include <sys/types.h>
29 #include <freeradius-devel/missing.h>
32 * Copy src to string dst of size siz. At most siz-1 characters
33 * will be copied. Always NUL terminates (unless siz == 0).
34 * Returns strlen(src); if retval >= siz, truncation occurred.
37 strlcpy(char *dst, const char *src, size_t siz)
43 /* Copy as many bytes as will fit */
44 if (n != 0 && --n != 0) {
46 if ((*d++ = *s++) == 0)
51 /* Not enough room in dst, add NUL and traverse rest of src */
54 *d = '\0'; /* NUL-terminate dst */
59 return(s - src - 1); /* count does not include NUL */