| 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Mini remove_file implementation for busybox
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| 4 | *
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| 5 | * Copyright (C) 2001 Matt Kraai <kraai@alumni.carnegiemellon.edu>
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| 6 | *
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| 7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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| 8 | */
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| 9 |
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| 10 | #include "libbb.h"
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| 11 |
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| 12 | /* Used from NOFORK applets. Must not allocate anything */
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| 13 |
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| 14 | int FAST_FUNC remove_file(const char *path, int flags)
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| 15 | {
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| 16 | struct stat path_stat;
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| 17 |
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| 18 | if (lstat(path, &path_stat) < 0) {
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| 19 | if (errno != ENOENT) {
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| 20 | bb_perror_msg("can't stat '%s'", path);
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| 21 | return -1;
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| 22 | }
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| 23 | if (!(flags & FILEUTILS_FORCE)) {
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| 24 | bb_perror_msg("can't remove '%s'", path);
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| 25 | return -1;
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| 26 | }
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| 27 | return 0;
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| 28 | }
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| 29 |
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| 30 | if (S_ISDIR(path_stat.st_mode)) {
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| 31 | DIR *dp;
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| 32 | struct dirent *d;
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| 33 | int status = 0;
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| 34 |
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| 35 | if (!(flags & FILEUTILS_RECUR)) {
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| 36 | bb_error_msg("'%s' is a directory", path);
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| 37 | return -1;
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| 38 | }
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| 39 |
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| 40 | if ((!(flags & FILEUTILS_FORCE) && access(path, W_OK) < 0 && isatty(0))
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| 41 | || (flags & FILEUTILS_INTERACTIVE)
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| 42 | ) {
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| 43 | fprintf(stderr, "%s: descend into directory '%s'? ", applet_name,
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| 44 | path);
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| 45 | if (!bb_ask_confirmation())
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| 46 | return 0;
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| 47 | }
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| 48 |
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| 49 | dp = opendir(path);
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| 50 | if (dp == NULL) {
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| 51 | return -1;
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| 52 | }
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| 53 |
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| 54 | while ((d = readdir(dp)) != NULL) {
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| 55 | char *new_path;
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| 56 |
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| 57 | new_path = concat_subpath_file(path, d->d_name);
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| 58 | if (new_path == NULL)
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| 59 | continue;
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| 60 | if (remove_file(new_path, flags) < 0)
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| 61 | status = -1;
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| 62 | free(new_path);
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| 63 | }
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| 64 |
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| 65 | if (closedir(dp) < 0) {
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| 66 | bb_perror_msg("can't close '%s'", path);
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| 67 | return -1;
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| 68 | }
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| 69 |
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| 70 | if (flags & FILEUTILS_INTERACTIVE) {
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| 71 | fprintf(stderr, "%s: remove directory '%s'? ", applet_name, path);
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| 72 | if (!bb_ask_confirmation())
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| 73 | return status;
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| 74 | }
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| 75 |
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| 76 | if (rmdir(path) < 0) {
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| 77 | bb_perror_msg("can't remove '%s'", path);
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| 78 | return -1;
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| 79 | }
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| 80 |
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| 81 | if (flags & FILEUTILS_VERBOSE) {
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| 82 | printf("removed directory: '%s'\n", path);
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| 83 | }
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| 84 |
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| 85 | return status;
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| 86 | }
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| 87 |
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| 88 | /* !ISDIR */
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| 89 | if ((!(flags & FILEUTILS_FORCE)
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| 90 | && access(path, W_OK) < 0
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| 91 | && !S_ISLNK(path_stat.st_mode)
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| 92 | && isatty(0))
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| 93 | || (flags & FILEUTILS_INTERACTIVE)
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| 94 | ) {
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| 95 | fprintf(stderr, "%s: remove '%s'? ", applet_name, path);
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| 96 | if (!bb_ask_confirmation())
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| 97 | return 0;
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| 98 | }
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| 99 |
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| 100 | if (unlink(path) < 0) {
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| 101 | bb_perror_msg("can't remove '%s'", path);
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| 102 | return -1;
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| 103 | }
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| 104 |
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| 105 | if (flags & FILEUTILS_VERBOSE) {
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| 106 | printf("removed '%s'\n", path);
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| 107 | }
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| 108 |
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| 109 | return 0;
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| 110 | }
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