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authorDamien Miller <djm@mindrot.org>2003-02-24 12:55:55 +1100
committerDamien Miller <djm@mindrot.org>2003-02-24 12:55:55 +1100
commit8d8168a255c17ca343865d1ee4962f2cba46b2d8 (patch)
treecbe3a80fcef437e14d3564dbcefff867556467c3 /openbsd-compat/basename.c
parentb16f874d89402333aabcc7988de59766934bf83d (diff)
- (djm) Rest of Bug #499: Import a basename() function from OpenBSD libc
Diffstat (limited to 'openbsd-compat/basename.c')
-rw-r--r--openbsd-compat/basename.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/openbsd-compat/basename.c b/openbsd-compat/basename.c
new file mode 100644
index 00000000..5a3823bc
--- /dev/null
+++ b/openbsd-compat/basename.c
@@ -0,0 +1,73 @@
+/* $OpenBSD: basename.c,v 1.8 2002/06/09 05:03:59 deraadt Exp $ */
+
+/*
+ * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "includes.h"
+
+#if !defined(HAVE_BASENAME)
+
+#ifndef lint
+static char rcsid[] = "$OpenBSD: basename.c,v 1.8 2002/06/09 05:03:59 deraadt Exp $";
+#endif /* not lint */
+
+char *
+basename(const char *path)
+{
+ static char bname[MAXPATHLEN];
+ register const char *endp, *startp;
+
+ /* Empty or NULL string gets treated as "." */
+ if (path == NULL || *path == '\0') {
+ (void)strlcpy(bname, ".", sizeof bname);
+ return(bname);
+ }
+
+ /* Strip trailing slashes */
+ endp = path + strlen(path) - 1;
+ while (endp > path && *endp == '/')
+ endp--;
+
+ /* All slashes become "/" */
+ if (endp == path && *endp == '/') {
+ (void)strlcpy(bname, "/", sizeof bname);
+ return(bname);
+ }
+
+ /* Find the start of the base */
+ startp = endp;
+ while (startp > path && *(startp - 1) != '/')
+ startp--;
+
+ if (endp - startp + 2 > sizeof(bname)) {
+ errno = ENAMETOOLONG;
+ return(NULL);
+ }
+ strlcpy(bname, startp, endp - startp + 2);
+ return(bname);
+}
+
+#endif /* !defined(HAVE_BASENAME) */