coreutils/rmdir.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * rmdir implementation for busybox
   4  *
   5  * Copyright (C) 2003  Manuel Novoa III  <mjn3@codepoet.org>
   6  *
   7  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
   8  */
   9
  10 /* BB_AUDIT SUSv3 compliant */
  11 /* http://www.opengroup.org/onlinepubs/007904975/utilities/rmdir.html */
  12
  13 //usage:#define rmdir_trivial_usage
  14 //usage:       "[OPTIONS] DIRECTORY..."
  15 //usage:#define rmdir_full_usage "\n\n"
  16 //usage:       "Remove DIRECTORY if it is empty\n"
  17 //usage:     "\nOptions:"
  18 //usage:        IF_FEATURE_RMDIR_LONG_OPTIONS(
  19 //usage:     "\n        -p|--parents    Include parents"
  20 //usage:     "\n        --ignore-fail-on-non-empty"
  21 //usage:        )
  22 //usage:        IF_NOT_FEATURE_RMDIR_LONG_OPTIONS(
  23 //usage:     "\n        -p      Include parents"
  24 //usage:        )
  25 //usage:
  26 //usage:#define rmdir_example_usage
  27 //usage:       "# rmdir /tmp/foo\n"
  28
  29 #include "libbb.h"
  30
  31 /* This is a NOFORK applet. Be very careful! */
  32
  33
  34 #define PARENTS 0x01
  35 #define IGNORE_NON_EMPTY 0x02
  36
  37 int rmdir_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  38 int rmdir_main(int argc UNUSED_PARAM, char **argv)
  39 {
  40         int status = EXIT_SUCCESS;
  41         int flags;
  42         char *path;
  43
  44 #if ENABLE_FEATURE_RMDIR_LONG_OPTIONS
  45         static const char rmdir_longopts[] ALIGN1 =
  46                 "parents\0"                  No_argument "p"
  47                 /* Debian etch: many packages fail to be purged or installed
  48                  * because they desperately want this option: */
  49                 "ignore-fail-on-non-empty\0" No_argument "\xff"
  50                 ;
  51         applet_long_options = rmdir_longopts;
  52 #endif
  53         flags = getopt32(argv, "p");
  54         argv += optind;
  55
  56         if (!*argv) {
  57                 bb_show_usage();
  58         }
  59
  60         do {
  61                 path = *argv;
  62
  63                 while (1) {
  64                         if (rmdir(path) < 0) {
  65 #if ENABLE_FEATURE_RMDIR_LONG_OPTIONS
  66                                 if ((flags & IGNORE_NON_EMPTY) && errno == ENOTEMPTY)
  67                                         break;
  68 #endif
  69                                 bb_perror_msg("'%s'", path);  /* Match gnu rmdir msg. */
  70                                 status = EXIT_FAILURE;
  71                         } else if (flags & PARENTS) {
  72                                 /* Note: path was not "" since rmdir succeeded. */
  73                                 path = dirname(path);
  74                                 /* Path is now just the parent component.  Dirname
  75                                  * returns "." if there are no parents.
  76                                  */
  77                                 if (NOT_LONE_CHAR(path, '.')) {
  78                                         continue;
  79                                 }
  80                         }
  81                         break;
  82                 }
  83         } while (*++argv);
  84
  85         return status;
  86 }