1 /* OPENBSD ORIGINAL: lib/libc/gen/basename.c */
3 /* $OpenBSD: basename.c,v 1.11 2003/06/17 21:56:23 millert Exp $ */
6 * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
25 static char rcsid[] = "$OpenBSD: basename.c,v 1.11 2003/06/17 21:56:23 millert Exp $";
29 basename(const char *path)
31 static char bname[MAXPATHLEN];
32 register const char *endp, *startp;
34 /* Empty or NULL string gets treated as "." */
35 if (path == NULL || *path == '\0') {
36 (void)strlcpy(bname, ".", sizeof bname);
40 /* Strip trailing slashes */
41 endp = path + strlen(path) - 1;
42 while (endp > path && *endp == '/')
45 /* All slashes become "/" */
46 if (endp == path && *endp == '/') {
47 (void)strlcpy(bname, "/", sizeof bname);
51 /* Find the start of the base */
53 while (startp > path && *(startp - 1) != '/')
56 if (endp - startp + 2 > sizeof(bname)) {
60 strlcpy(bname, startp, endp - startp + 2);
64 #endif /* !defined(HAVE_BASENAME) */