/*
* 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
*
*/
-#include "internal.h"
+/* BB_AUDIT SUSv3 compliant */
+/* http://www.opengroup.org/onlinepubs/007904975/utilities/basename.html */
+
+
+/* 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.
+ */
+
+#include <stdlib.h>
#include <stdio.h>
+#include <string.h>
+#include "busybox.h"
-extern int basename_main(int argc, char **argv)
+int basename_main(int argc, char **argv)
{
- char* s, *s1;
+ size_t m, n;
+ char *s;
- if ((argc < 2) || (**(argv + 1) == '-')) {
- usage("basename [file ...]\n");
+ if (((unsigned int)(argc-2)) >= 2) {
+ bb_show_usage();
}
- argv++;
-
- s1=*argv+strlen(*argv)-1;
- if (*s1 == '/')
- *s1 = '\0';
- s = strrchr(*argv, '/');
- printf("%s\n", (s)? s + 1 : *argv);
- exit(TRUE);
-}
+ s = bb_get_last_path_component(*++argv);
+
+ if (*++argv) {
+ n = strlen(*argv);
+ m = strlen(s);
+ if ((m > n) && ((strcmp)(s+m-n, *argv) == 0)) {
+ s[m-n] = '\0';
+ }
+ }
+
+ puts(s);
+
+ bb_fflush_stdout_and_exit(EXIT_SUCCESS);
+}