use bb_xbind/bb_xlisten

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

diff --git a/coreutils/chmod.c b/coreutils/chmod.c
index ba80e020a8a8445cba1f8004f286aa9bdd615bf2..c871ad10eeeacc761e403c1d1b33f7127e88d2e5 100644 (file)
--- a/coreutils/chmod.c
+++ b/coreutils/chmod.c
@@ -2,95 +2,90 @@
 /*
  * Mini chmod implementation for busybox
  *
- * Copyright (C) 1999,2000 by Lineo, inc. and Erik Andersen
- * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
  *
  * Reworked by (C) 2002 Vladimir Oleynik <dzo@simtreas.ru>
  *  to correctly parse '-rwxgoa'
  *
- * 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.
  */
 
+/* BB_AUDIT SUSv3 compliant */
+/* BB_AUDIT GNU defects - unsupported options -c, -f, -v, and long options. */
+/* http://www.opengroup.org/onlinepubs/007904975/utilities/chmod.html */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#include <getopt.h>
+#include <sys/stat.h>
 #include "busybox.h"
 
 static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
 {
-       if (!parse_mode((char *)junk, &(statbuf->st_mode)))
-               error_msg_and_die( "unknown mode: %s", (char *)junk);
+       if (!bb_parse_mode((char *)junk, &(statbuf->st_mode)))
+               bb_error_msg_and_die( "invalid mode: %s", (char *)junk);
        if (chmod(fileName, statbuf->st_mode) == 0)
                return (TRUE);
-       perror(fileName);
+       bb_perror_msg("%s", fileName);  /* Avoid multibyte problems. */
        return (FALSE);
 }
 
-int chmod_main(int argc, char **argv)
+int chmod_main(int ATTRIBUTE_UNUSED argc, char **argv)
 {
-       int opt;
+       int retval = EXIT_SUCCESS;
        int recursiveFlag = FALSE;
-       int modeind = 0;   /* Index of the mode argument in `argv'. */
+       int count;
        char *smode;
-       static const char chmod_modes[] = "Rrwxstugoa,+-=";
+       char **p;
+       char *p0;
+       char opt = '-';
 
-       /* do normal option parsing */
-       while (1) {
-               int thisind = optind ? optind : 1;
+       ++argv;
+       count = 0;
 
-               opt = getopt(argc, argv, chmod_modes);
-               if (opt == EOF)
-                               break;
-               smode = strchr(chmod_modes, opt);
-               if(smode == NULL)
-                               show_usage();
-               if(smode == chmod_modes) {      /* 'R' */
-                       recursiveFlag = TRUE;
-               } else {
-                     if (modeind != 0 && modeind != thisind)
-                       show_usage();
-                     modeind = thisind;
+       for (p = argv  ; *p ; p++) {
+               p0 = p[0];
+               if (p0[0] == opt) {
+                       if ((p0[1] == '-') && !p0[2]) {
+                               opt = 0;        /* Disable further option processing. */
+                               continue;
+                       }
+                       if (p0[1] == 'R') {
+                               char *s = p0 + 2;
+                               while (*s == 'R') {
+                                       ++s;
+                               }
+                               if (*s) {
+                                       bb_show_usage();
+                               }
+                               recursiveFlag = TRUE;
+                               continue;
+                       }
+                       if (count) {
+                               bb_show_usage();
+                       }
                }
+               argv[count] = p0;
+               ++count;
        }
 
-       if (modeind == 0)
-               modeind = optind++;
+       argv[count] = NULL;
 
-       opt = optind;
-       if (opt >= argc) {
-               error_msg_and_die(too_few_args);
+       if (count < 2) {
+               bb_show_usage();
        }
 
-       smode = argv[modeind];
+       smode = *argv;
+       ++argv;
+
        /* Ok, ready to do the deed now */
-       for (; opt < argc; opt++) {
-               if (! recursive_action (argv[opt], recursiveFlag, FALSE, FALSE, fileAction,
-                                       fileAction, smode)) {
-                       return EXIT_FAILURE;
+       do {
+               if (! recursive_action (*argv, recursiveFlag, TRUE, FALSE,
+                                                               fileAction,     fileAction, smode)) {
+                       retval = EXIT_FAILURE;
                }
-       }
-       return EXIT_SUCCESS;
-}
+       } while (*++argv);
 
-/*
-Local Variables:
-c-file-style: "linux"
-c-basic-offset: 4
-tab-width: 4
-End:
-*/
+       return retval;
+}