/*
* Mini basename implementation for busybox
*
- * Copyright (C) 1999,2000 by Lineo, inc.
- * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*
*/
-#include "internal.h"
-#include <stdio.h>
+/* BB_AUDIT SUSv3 compliant */
+/* http://www.opengroup.org/onlinepubs/007904975/utilities/basename.html */
-const char *basename_usage="basename FILE [SUFFIX]\n"
-#ifndef BB_FEATURE_TRIVIAL_HELP
- "\nStrips directory path and suffixes from FILE.\n"
- "If specified, also removes any trailing SUFFIX.\n"
-#endif
-;
+/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
+ *
+ * Changes:
+ * 1) Now checks for too many args. Need at least one and at most two.
+ * 2) Don't check for options, as per SUSv3.
+ * 3) Save some space by using strcmp(). Calling strncmp() here was silly.
+ */
-extern int basename_main(int argc, char **argv)
-{
- int m, n;
- char *s, *s1;
+#include "libbb.h"
- if ((argc < 2) || (**(argv + 1) == '-')) {
- usage(basename_usage);
- }
+/* This is a NOFORK applet. Be very careful! */
- argv++;
+int basename_main(int argc, char **argv);
+int basename_main(int argc, char **argv)
+{
+ size_t m, n;
+ char *s;
- s1=*argv+strlen(*argv)-1;
- while (s1 && *s1 == '/') {
- *s1 = '\0';
- s1--;
+ if (((unsigned int)(argc-2)) >= 2) {
+ bb_show_usage();
}
- s = strrchr(*argv, '/');
- if (s==NULL) s=*argv;
- else s++;
- if (argc>2) {
- argv++;
+ s = bb_get_last_path_component(*++argv);
+
+ if (*++argv) {
n = strlen(*argv);
m = strlen(s);
- if (m>=n && strncmp(s+m-n, *argv, n)==0)
+ if ((m > n) && ((strcmp)(s+m-n, *argv) == 0)) {
s[m-n] = '\0';
+ }
}
- printf("%s\n", s);
- exit(TRUE);
-}
+ puts(s);
+
+ return fflush(stdout);
+}