2 * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
17 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
18 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
19 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 * $OpenBSD: basename.c,v 1.4 1999/05/30 17:10:30 espie Exp $
28 * $FreeBSD: src/lib/libc/gen/basename.c,v 1.6 2002/12/21 07:12:35 bbraun Exp $
29 * $DragonFly: src/lib/libc/gen/basename.c,v 1.8 2005/09/18 16:09:45 asmodai Exp $
36 #include <sys/param.h>
39 basename(const char *path
)
41 static char *bname
= NULL
;
42 const char *endp
, *startp
;
45 bname
= (char *)malloc(MAXPATHLEN
);
50 /* Empty or NULL string gets treated as "." */
51 if (path
== NULL
|| *path
== '\0') {
52 strlcpy(bname
, ".", MAXPATHLEN
);
56 /* Strip trailing slashes */
57 endp
= path
+ strlen(path
) - 1;
58 while (endp
> path
&& *endp
== '/')
61 /* All slashes becomes "/" */
62 if (endp
== path
&& *endp
== '/') {
63 strlcpy(bname
, "/", MAXPATHLEN
);
67 /* Find the start of the base */
69 while (startp
> path
&& *(startp
- 1) != '/')
72 if (strlcpy(bname
, startp
, (endp
- startp
) + 2) >= MAXPATHLEN
) {