blob: 8979941ce4561c7eff7975634690ecbcb863e6a1
| 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 | //config:config RMDIR |
| 10 | //config: bool "rmdir" |
| 11 | //config: default y |
| 12 | //config: help |
| 13 | //config: rmdir is used to remove empty directories. |
| 14 | //config: |
| 15 | //config:config FEATURE_RMDIR_LONG_OPTIONS |
| 16 | //config: bool "Enable long options" |
| 17 | //config: default y |
| 18 | //config: depends on RMDIR && LONG_OPTS |
| 19 | //config: help |
| 20 | //config: Support long options for the rmdir applet, including |
| 21 | //config: --ignore-fail-on-non-empty for compatibility with GNU rmdir. |
| 22 | |
| 23 | //applet:IF_RMDIR(APPLET_NOFORK(rmdir, rmdir, BB_DIR_BIN, BB_SUID_DROP, rmdir)) |
| 24 | |
| 25 | //kbuild:lib-$(CONFIG_RMDIR) += rmdir.o |
| 26 | |
| 27 | /* BB_AUDIT SUSv3 compliant */ |
| 28 | /* http://www.opengroup.org/onlinepubs/007904975/utilities/rmdir.html */ |
| 29 | |
| 30 | //usage:#define rmdir_trivial_usage |
| 31 | //usage: "[OPTIONS] DIRECTORY..." |
| 32 | //usage:#define rmdir_full_usage "\n\n" |
| 33 | //usage: "Remove DIRECTORY if it is empty\n" |
| 34 | //usage: IF_FEATURE_RMDIR_LONG_OPTIONS( |
| 35 | //usage: "\n -p|--parents Include parents" |
| 36 | //usage: "\n --ignore-fail-on-non-empty" |
| 37 | //usage: ) |
| 38 | //usage: IF_NOT_FEATURE_RMDIR_LONG_OPTIONS( |
| 39 | //usage: "\n -p Include parents" |
| 40 | //usage: ) |
| 41 | //usage: |
| 42 | //usage:#define rmdir_example_usage |
| 43 | //usage: "# rmdir /tmp/foo\n" |
| 44 | |
| 45 | #include "libbb.h" |
| 46 | |
| 47 | /* This is a NOFORK applet. Be very careful! */ |
| 48 | |
| 49 | |
| 50 | #define PARENTS (1 << 0) |
| 51 | #define VERBOSE ((1 << 1) * ENABLE_FEATURE_VERBOSE) |
| 52 | #define IGNORE_NON_EMPTY (1 << 2) |
| 53 | |
| 54 | int rmdir_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
| 55 | int rmdir_main(int argc UNUSED_PARAM, char **argv) |
| 56 | { |
| 57 | int status = EXIT_SUCCESS; |
| 58 | int flags; |
| 59 | char *path; |
| 60 | |
| 61 | #if ENABLE_FEATURE_RMDIR_LONG_OPTIONS |
| 62 | static const char rmdir_longopts[] ALIGN1 = |
| 63 | "parents\0" No_argument "p" |
| 64 | /* Debian etch: many packages fail to be purged or installed |
| 65 | * because they desperately want this option: */ |
| 66 | "ignore-fail-on-non-empty\0" No_argument "\xff" |
| 67 | IF_FEATURE_VERBOSE( |
| 68 | "verbose\0" No_argument "v" |
| 69 | ) |
| 70 | ; |
| 71 | applet_long_options = rmdir_longopts; |
| 72 | #endif |
| 73 | flags = getopt32(argv, "pv"); |
| 74 | argv += optind; |
| 75 | |
| 76 | if (!*argv) { |
| 77 | bb_show_usage(); |
| 78 | } |
| 79 | |
| 80 | do { |
| 81 | path = *argv; |
| 82 | |
| 83 | while (1) { |
| 84 | if (flags & VERBOSE) { |
| 85 | printf("rmdir: removing directory, '%s'\n", path); |
| 86 | } |
| 87 | |
| 88 | if (rmdir(path) < 0) { |
| 89 | #if ENABLE_FEATURE_RMDIR_LONG_OPTIONS |
| 90 | if ((flags & IGNORE_NON_EMPTY) && errno == ENOTEMPTY) |
| 91 | break; |
| 92 | #endif |
| 93 | bb_perror_msg("'%s'", path); /* Match gnu rmdir msg. */ |
| 94 | status = EXIT_FAILURE; |
| 95 | } else if (flags & PARENTS) { |
| 96 | /* Note: path was not "" since rmdir succeeded. */ |
| 97 | path = dirname(path); |
| 98 | /* Path is now just the parent component. Dirname |
| 99 | * returns "." if there are no parents. |
| 100 | */ |
| 101 | if (NOT_LONE_CHAR(path, '.')) { |
| 102 | continue; |
| 103 | } |
| 104 | } |
| 105 | break; |
| 106 | } |
| 107 | } while (*++argv); |
| 108 | |
| 109 | return status; |
| 110 | } |
| 111 |