release/src/router/busybox/coreutils/rm.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * Mini rm implementation for busybox
   4  *
   5  * Copyright (C) 2001 Matt Kraai <kraai@alumni.carnegiemellon.edu>
   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/rm.html */
  12
  13 /* Mar 16, 2003      Manuel Novoa III   (mjn3@codepoet.org)
  14  *
  15  * Size reduction.
  16  */
  17
  18 //usage:#define rm_trivial_usage
  19 //usage:       "[-irf] FILE..."
  20 //usage:#define rm_full_usage "\n\n"
  21 //usage:       "Remove (unlink) FILEs\n"
  22 //usage:     "\n        -i      Always prompt before removing"
  23 //usage:     "\n        -f      Never prompt"
  24 //usage:     "\n        -R,-r   Recurse"
  25 //usage:
  26 //usage:#define rm_example_usage
  27 //usage:       "$ rm -rf /tmp/foo\n"
  28
  29 #include "libbb.h"
  30
  31 /* This is a NOFORK applet. Be very careful! */
  32
  33 int rm_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  34 int rm_main(int argc UNUSED_PARAM, char **argv)
  35 {
  36         int status = 0;
  37         int flags = 0;
  38         unsigned opt;
  39
  40         opt_complementary = "f-i:i-f";
  41         /* -v (verbose) is ignored */
  42         opt = getopt32(argv, "fiRrv");
  43         argv += optind;
  44         if (opt & 1)
  45                 flags |= FILEUTILS_FORCE;
  46         if (opt & 2)
  47                 flags |= FILEUTILS_INTERACTIVE;
  48         if (opt & (8|4))
  49                 flags |= FILEUTILS_RECUR;
  50
  51         if (*argv != NULL) {
  52                 do {
  53                         const char *base = bb_get_last_path_component_strip(*argv);
  54
  55                         if (DOT_OR_DOTDOT(base)) {
  56                                 bb_error_msg("can't remove '.' or '..'");
  57                         } else if (remove_file(*argv, flags) >= 0) {
  58                                 continue;
  59                         }
  60                         status = 1;
  61                 } while (*++argv);
  62         } else if (!(flags & FILEUTILS_FORCE)) {
  63                 bb_show_usage();
  64         }
  65
  66         return status;
  67 }