Annotation of /trunk/mkinitrd-magellan/busybox/coreutils/mv.c
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Revision 984 -
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Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
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File size: 3184 byte(s)
Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
File MIME type: text/plain
File size: 3184 byte(s)
-updated to busybox-1.16.1 and enabled blkid/uuid support in default config
1 | niro | 532 | /* vi: set sw=4 ts=4: */ |
2 | /* | ||
3 | * Mini mv implementation for busybox | ||
4 | * | ||
5 | * Copyright (C) 2000 by Matt Kraai <kraai@alumni.carnegiemellon.edu> | ||
6 | niro | 816 | * SELinux support by Yuichi Nakamura <ynakam@hitachisoft.jp> |
7 | niro | 532 | * |
8 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. | ||
9 | */ | ||
10 | |||
11 | /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) | ||
12 | * | ||
13 | * Size reduction and improved error checking. | ||
14 | */ | ||
15 | |||
16 | niro | 816 | #include "libbb.h" |
17 | niro | 532 | #include "libcoreutils/coreutils.h" |
18 | |||
19 | #if ENABLE_FEATURE_MV_LONG_OPTIONS | ||
20 | niro | 816 | static const char mv_longopts[] ALIGN1 = |
21 | "interactive\0" No_argument "i" | ||
22 | "force\0" No_argument "f" | ||
23 | ; | ||
24 | niro | 532 | #endif |
25 | |||
26 | #define OPT_FILEUTILS_FORCE 1 | ||
27 | #define OPT_FILEUTILS_INTERACTIVE 2 | ||
28 | |||
29 | niro | 816 | int mv_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
30 | niro | 532 | int mv_main(int argc, char **argv) |
31 | { | ||
32 | struct stat dest_stat; | ||
33 | const char *last; | ||
34 | const char *dest; | ||
35 | niro | 816 | unsigned flags; |
36 | niro | 532 | int dest_exists; |
37 | int status = 0; | ||
38 | niro | 816 | int copy_flag = 0; |
39 | niro | 532 | |
40 | #if ENABLE_FEATURE_MV_LONG_OPTIONS | ||
41 | niro | 816 | applet_long_options = mv_longopts; |
42 | niro | 532 | #endif |
43 | niro | 816 | // Need at least two arguments |
44 | // -f unsets -i, -i unsets -f | ||
45 | opt_complementary = "-2:f-i:i-f"; | ||
46 | flags = getopt32(argv, "fi"); | ||
47 | argc -= optind; | ||
48 | argv += optind; | ||
49 | niro | 532 | last = argv[argc - 1]; |
50 | |||
51 | niro | 816 | if (argc == 2) { |
52 | niro | 532 | dest_exists = cp_mv_stat(last, &dest_stat); |
53 | if (dest_exists < 0) { | ||
54 | niro | 816 | return EXIT_FAILURE; |
55 | niro | 532 | } |
56 | |||
57 | niro | 816 | if (!(dest_exists & 2)) { /* last is not a directory */ |
58 | niro | 532 | dest = last; |
59 | goto DO_MOVE; | ||
60 | } | ||
61 | } | ||
62 | |||
63 | do { | ||
64 | niro | 816 | dest = concat_path_file(last, bb_get_last_path_component_strip(*argv)); |
65 | niro | 532 | dest_exists = cp_mv_stat(dest, &dest_stat); |
66 | if (dest_exists < 0) { | ||
67 | goto RET_1; | ||
68 | } | ||
69 | |||
70 | niro | 816 | DO_MOVE: |
71 | if (dest_exists | ||
72 | && !(flags & OPT_FILEUTILS_FORCE) | ||
73 | && ((access(dest, W_OK) < 0 && isatty(0)) | ||
74 | || (flags & OPT_FILEUTILS_INTERACTIVE)) | ||
75 | ) { | ||
76 | niro | 532 | if (fprintf(stderr, "mv: overwrite '%s'? ", dest) < 0) { |
77 | goto RET_1; /* Ouch! fprintf failed! */ | ||
78 | } | ||
79 | if (!bb_ask_confirmation()) { | ||
80 | goto RET_0; | ||
81 | } | ||
82 | } | ||
83 | if (rename(*argv, dest) < 0) { | ||
84 | struct stat source_stat; | ||
85 | int source_exists; | ||
86 | |||
87 | niro | 816 | if (errno != EXDEV |
88 | || (source_exists = cp_mv_stat2(*argv, &source_stat, lstat)) < 1 | ||
89 | ) { | ||
90 | niro | 984 | bb_perror_msg("can't rename '%s'", *argv); |
91 | niro | 532 | } else { |
92 | niro | 816 | static const char fmt[] ALIGN1 = |
93 | niro | 984 | "can't overwrite %sdirectory with %sdirectory"; |
94 | niro | 816 | |
95 | niro | 532 | if (dest_exists) { |
96 | if (dest_exists == 3) { | ||
97 | if (source_exists != 3) { | ||
98 | bb_error_msg(fmt, "", "non-"); | ||
99 | goto RET_1; | ||
100 | } | ||
101 | } else { | ||
102 | if (source_exists == 3) { | ||
103 | bb_error_msg(fmt, "non-", ""); | ||
104 | goto RET_1; | ||
105 | } | ||
106 | } | ||
107 | if (unlink(dest) < 0) { | ||
108 | niro | 984 | bb_perror_msg("can't remove '%s'", dest); |
109 | niro | 532 | goto RET_1; |
110 | } | ||
111 | } | ||
112 | niro | 816 | /* FILEUTILS_RECUR also prevents nasties like |
113 | * "read from device and write contents to dst" | ||
114 | * instead of "create same device node" */ | ||
115 | copy_flag = FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS; | ||
116 | #if ENABLE_SELINUX | ||
117 | copy_flag |= FILEUTILS_PRESERVE_SECURITY_CONTEXT; | ||
118 | #endif | ||
119 | if ((copy_file(*argv, dest, copy_flag) >= 0) | ||
120 | && (remove_file(*argv, FILEUTILS_RECUR | FILEUTILS_FORCE) >= 0) | ||
121 | ) { | ||
122 | niro | 532 | goto RET_0; |
123 | } | ||
124 | } | ||
125 | niro | 816 | RET_1: |
126 | niro | 532 | status = 1; |
127 | } | ||
128 | niro | 816 | RET_0: |
129 | niro | 532 | if (dest != last) { |
130 | free((void *) dest); | ||
131 | } | ||
132 | } while (*++argv != last); | ||
133 | |||
134 | return status; | ||
135 | } |