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 1.1.2.2 2001/07/23 10:13:04 dd Exp $
29 * $DragonFly: src/lib/libcr/gen/Attic/basename.c,v 1.3 2004/07/05 17:30:59 eirikn Exp $
35 #include <sys/param.h>
41 static char bname[MAXPATHLEN];
42 const char *endp, *startp;
44 /* Empty or NULL string gets treated as "." */
45 if (path == NULL || *path == '\0') {
46 (void)strcpy(bname, ".");
50 /* Strip trailing slashes */
51 endp = path + strlen(path) - 1;
52 while (endp > path && *endp == '/')
55 /* All slashes becomes "/" */
56 if (endp == path && *endp == '/') {
57 (void)strcpy(bname, "/");
61 /* Find the start of the base */
63 while (startp > path && *(startp - 1) != '/')
66 if (endp - startp + 2 > sizeof(bname)) {
70 (void)strncpy(bname, startp, endp - startp + 1);
71 bname[endp - startp + 1] = '\0';