Annotation of /tags/mkinitrd-6_1_11/busybox/libbb/remove_file.c
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Wed Oct 28 13:31:19 2009 UTC (14 years, 11 months ago) by niro
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File size: 2109 byte(s)
Wed Oct 28 13:31:19 2009 UTC (14 years, 11 months ago) by niro
File MIME type: text/plain
File size: 2109 byte(s)
tagged 'mkinitrd-6_1_11'
1 | niro | 532 | /* vi: set sw=4 ts=4: */ |
2 | /* | ||
3 | * Mini remove_file 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 tarball for details. | ||
8 | */ | ||
9 | |||
10 | #include "libbb.h" | ||
11 | |||
12 | niro | 816 | /* Used from NOFORK applets. Must not allocate anything */ |
13 | |||
14 | int FAST_FUNC remove_file(const char *path, int flags) | ||
15 | niro | 532 | { |
16 | struct stat path_stat; | ||
17 | |||
18 | if (lstat(path, &path_stat) < 0) { | ||
19 | if (errno != ENOENT) { | ||
20 | bb_perror_msg("cannot stat '%s'", path); | ||
21 | return -1; | ||
22 | } | ||
23 | if (!(flags & FILEUTILS_FORCE)) { | ||
24 | bb_perror_msg("cannot remove '%s'", path); | ||
25 | return -1; | ||
26 | } | ||
27 | return 0; | ||
28 | } | ||
29 | |||
30 | if (S_ISDIR(path_stat.st_mode)) { | ||
31 | DIR *dp; | ||
32 | struct dirent *d; | ||
33 | int status = 0; | ||
34 | |||
35 | if (!(flags & FILEUTILS_RECUR)) { | ||
36 | bb_error_msg("%s: is a directory", path); | ||
37 | return -1; | ||
38 | } | ||
39 | |||
40 | niro | 816 | if ((!(flags & FILEUTILS_FORCE) && access(path, W_OK) < 0 && isatty(0)) |
41 | || (flags & FILEUTILS_INTERACTIVE) | ||
42 | ) { | ||
43 | niro | 532 | fprintf(stderr, "%s: descend into directory '%s'? ", applet_name, |
44 | path); | ||
45 | if (!bb_ask_confirmation()) | ||
46 | return 0; | ||
47 | } | ||
48 | |||
49 | niro | 816 | dp = opendir(path); |
50 | if (dp == NULL) { | ||
51 | niro | 532 | return -1; |
52 | } | ||
53 | |||
54 | while ((d = readdir(dp)) != NULL) { | ||
55 | char *new_path; | ||
56 | |||
57 | new_path = concat_subpath_file(path, d->d_name); | ||
58 | niro | 816 | if (new_path == NULL) |
59 | niro | 532 | continue; |
60 | if (remove_file(new_path, flags) < 0) | ||
61 | status = -1; | ||
62 | free(new_path); | ||
63 | } | ||
64 | |||
65 | if (closedir(dp) < 0) { | ||
66 | bb_perror_msg("cannot close '%s'", path); | ||
67 | return -1; | ||
68 | } | ||
69 | |||
70 | if (flags & FILEUTILS_INTERACTIVE) { | ||
71 | fprintf(stderr, "%s: remove directory '%s'? ", applet_name, path); | ||
72 | if (!bb_ask_confirmation()) | ||
73 | return status; | ||
74 | } | ||
75 | |||
76 | if (rmdir(path) < 0) { | ||
77 | bb_perror_msg("cannot remove '%s'", path); | ||
78 | return -1; | ||
79 | } | ||
80 | |||
81 | return status; | ||
82 | niro | 816 | } |
83 | niro | 532 | |
84 | niro | 816 | /* !ISDIR */ |
85 | if ((!(flags & FILEUTILS_FORCE) | ||
86 | && access(path, W_OK) < 0 | ||
87 | && !S_ISLNK(path_stat.st_mode) | ||
88 | && isatty(0)) | ||
89 | || (flags & FILEUTILS_INTERACTIVE) | ||
90 | ) { | ||
91 | fprintf(stderr, "%s: remove '%s'? ", applet_name, path); | ||
92 | if (!bb_ask_confirmation()) | ||
93 | return 0; | ||
94 | } | ||
95 | niro | 532 | |
96 | niro | 816 | if (unlink(path) < 0) { |
97 | bb_perror_msg("cannot remove '%s'", path); | ||
98 | return -1; | ||
99 | niro | 532 | } |
100 | niro | 816 | |
101 | return 0; | ||
102 | niro | 532 | } |