box/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 tarball for details.
   8  */
   9
  10 /* BB_AUDIT SUSv3 compliant */
  11 /* http://www.opengroup.org/onlinepubs/007904975/utilities/rmdir.html */
  12
  13 #include <libgen.h>
  14 #include "libbb.h"
  15
  16 /* This is a NOFORK applet. Be very careful! */
  17
  18
  19 int rmdir_main(int argc, char **argv);
  20 int rmdir_main(int argc, char **argv)
  21 {
  22         int status = EXIT_SUCCESS;
  23         int flags;
  24         int do_dot;
  25         char *path;
  26
  27         flags = getopt32(argc, argv, "p");
  28         argv += optind;
  29
  30         if (!*argv) {
  31                 bb_show_usage();
  32         }
  33
  34         do {
  35                 path = *argv;
  36
  37                 /* Record if the first char was a '.' so we can use dirname later. */
  38                 do_dot = (*path == '.');
  39
  40                 while (1) {
  41                         if (rmdir(path) < 0) {
  42                                 bb_perror_msg("'%s'", path);    /* Match gnu rmdir msg. */
  43                                 status = EXIT_FAILURE;
  44                         } else if (flags) {
  45                                 /* Note: path was not empty or null since rmdir succeeded. */
  46                                 path = dirname(path);
  47                                 /* Path is now just the parent component.  Note that dirname
  48                                  * returns "." if there are no parents.  We must distinguish
  49                                  * this from the case of the original path starting with '.'.
  50                                  */
  51                                 if (do_dot || (*path != '.') || path[1]) {
  52                                         continue;
  53                                 }
  54                         }
  55                         break;
  56                 }
  57
  58         } while (*++argv);
  59
  60         return status;
  61 }