2 * strlcat.c Concatenate 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.
23 * Copyright 2006 The FreeRADIUS server project
26 #include <freeradius-devel/ident.h>
29 #include <freeradius-devel/autoconf.h>
33 #include <freeradius-devel/missing.h>
36 * Appends src to string dst of size siz (unlike strncat, siz is the
37 * full size of dst, not space left). At most siz-1 characters
38 * will be copied. Always NUL terminates (unless siz <= strlen(dst)).
39 * Returns strlen(src) + MIN(siz, strlen(initial dst)).
40 * If retval >= siz, truncation occurred.
43 strlcat(char *dst, const char *src, size_t siz)
50 /* Find the end of dst and adjust bytes left but don't go past end */
51 while (n-- != 0 && *d != '\0')
57 return(dlen + strlen(s));
67 return(dlen + (s - src)); /* count does not include NUL */