111 lines
2.9 KiB
C
111 lines
2.9 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* rmdir implementation for busybox
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*
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* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
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*
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* Licensed under GPLv2 or later, see file LICENSE in this source tree.
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*/
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//config:config RMDIR
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//config: bool "rmdir (3.4 kb)"
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//config: default y
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//config: help
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//config: rmdir is used to remove empty directories.
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//config:
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//config:config FEATURE_RMDIR_LONG_OPTIONS
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//config: bool "Enable long options"
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//config: default y
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//config: depends on RMDIR && LONG_OPTS
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//config: help
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//config: Support long options for the rmdir applet, including
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//config: --ignore-fail-on-non-empty for compatibility with GNU rmdir.
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//applet:IF_RMDIR(APPLET_NOFORK(rmdir, rmdir, BB_DIR_BIN, BB_SUID_DROP, rmdir))
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//kbuild:lib-$(CONFIG_RMDIR) += rmdir.o
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/* BB_AUDIT SUSv3 compliant */
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/* http://www.opengroup.org/onlinepubs/007904975/utilities/rmdir.html */
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//usage:#define rmdir_trivial_usage
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//usage: "[OPTIONS] DIRECTORY..."
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//usage:#define rmdir_full_usage "\n\n"
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//usage: "Remove DIRECTORY if it is empty\n"
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//usage: IF_FEATURE_RMDIR_LONG_OPTIONS(
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//usage: "\n -p|--parents Include parents"
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//usage: "\n --ignore-fail-on-non-empty"
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//usage: )
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//usage: IF_NOT_FEATURE_RMDIR_LONG_OPTIONS(
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//usage: "\n -p Include parents"
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//usage: )
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//usage:
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//usage:#define rmdir_example_usage
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//usage: "# rmdir /tmp/foo\n"
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#include "libbb.h"
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/* This is a NOFORK applet. Be very careful! */
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#define PARENTS (1 << 0)
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#define VERBOSE ((1 << 1) * ENABLE_FEATURE_VERBOSE)
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#define IGNORE_NON_EMPTY (1 << 2)
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int rmdir_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int rmdir_main(int argc UNUSED_PARAM, char **argv)
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{
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int status = EXIT_SUCCESS;
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int flags;
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char *path;
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#if ENABLE_FEATURE_RMDIR_LONG_OPTIONS
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static const char rmdir_longopts[] ALIGN1 =
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"parents\0" No_argument "p"
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/* Debian etch: many packages fail to be purged or installed
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* because they desperately want this option: */
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"ignore-fail-on-non-empty\0" No_argument "\xff"
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IF_FEATURE_VERBOSE(
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"verbose\0" No_argument "v"
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)
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;
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applet_long_options = rmdir_longopts;
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#endif
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flags = getopt32(argv, "pv");
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argv += optind;
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if (!*argv) {
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bb_show_usage();
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}
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do {
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path = *argv;
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while (1) {
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if (flags & VERBOSE) {
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printf("rmdir: removing directory, '%s'\n", path);
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}
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if (rmdir(path) < 0) {
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#if ENABLE_FEATURE_RMDIR_LONG_OPTIONS
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if ((flags & IGNORE_NON_EMPTY) && errno == ENOTEMPTY)
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break;
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#endif
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bb_perror_msg("'%s'", path); /* Match gnu rmdir msg. */
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status = EXIT_FAILURE;
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} else if (flags & PARENTS) {
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/* Note: path was not "" since rmdir succeeded. */
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path = dirname(path);
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/* Path is now just the parent component. Dirname
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* returns "." if there are no parents.
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*/
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if (NOT_LONE_CHAR(path, '.')) {
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continue;
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}
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}
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break;
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}
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} while (*++argv);
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return status;
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}
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