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 tarball for details.
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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 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("cannot 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("cannot 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("cannot 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("cannot 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 | return status;
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82 | }
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83 |
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84 | /* !ISDIR */
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85 | if ((!(flags & FILEUTILS_FORCE) && access(path, W_OK) < 0
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86 | && !S_ISLNK(path_stat.st_mode) && isatty(0))
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87 | || (flags & FILEUTILS_INTERACTIVE)
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88 | ) {
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89 | fprintf(stderr, "%s: remove '%s'? ", applet_name, path);
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90 | if (!bb_ask_confirmation())
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91 | return 0;
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92 | }
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93 |
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94 | if (unlink(path) < 0) {
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95 | bb_perror_msg("cannot remove '%s'", path);
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96 | return -1;
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97 | }
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98 |
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99 | return 0;
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100 | }
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