usage.c: remove reference to busybox.h

[oweals/busybox.git] / coreutils / basename.c

diff --git a/coreutils/basename.c b/coreutils/basename.c
index 5678c4433daf04a023da1359701803df4786240e..f59d7a8dee99b7c649cd0c0f6e49be69ee6c2f0b 100644 (file)
--- a/coreutils/basename.c
+++ b/coreutils/basename.c
@@ -2,56 +2,49 @@
 /*
  * 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.
+ */
 
+#include "libbb.h"
 
-extern int basename_main(int argc, char **argv)
+/* This is a NOFORK applet. Be very careful! */
+
+int basename_main(int argc, char **argv);
+int basename_main(int argc, char **argv)
 {
-       int m, n;
+       size_t m, n;
        char *s;
 
-       if ((argc < 2) || (**(argv + 1) == '-')) {
-               usage(basename_usage);
+       if (((unsigned int)(argc-2)) >= 2) {
+               bb_show_usage();
        }
 
-       argv++;
-
-       s = get_last_path_component(*argv);
+       s = bb_get_last_path_component(*++argv);
 
-       if (argc>2) {
-               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);
-       return(TRUE);
+
+       puts(s);
+
+       return fflush(stdout);
 }