[821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Mini mv implementation for busybox
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| 4 | *
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| 5 | * Copyright (C) 2000 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
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[1765] | 6 | * SELinux support by Yuichi Nakamura <ynakam@hitachisoft.jp>
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[821] | 7 | *
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[1765] | 8 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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[821] | 9 | */
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| 10 |
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| 11 | /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
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| 12 | *
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| 13 | * Size reduction and improved error checking.
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| 14 | */
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| 15 |
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| 16 | #include <sys/types.h>
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| 17 | #include <sys/stat.h>
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| 18 | #include <dirent.h>
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| 19 | #include <getopt.h> /* struct option */
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[1765] | 20 | #include "libbb.h"
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[821] | 21 | #include "libcoreutils/coreutils.h"
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| 22 |
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| 23 | #if ENABLE_FEATURE_MV_LONG_OPTIONS
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[1765] | 24 | static const char mv_longopts[] ALIGN1 =
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| 25 | "interactive\0" No_argument "i"
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| 26 | "force\0" No_argument "f"
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| 27 | ;
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[821] | 28 | #endif
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| 29 |
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| 30 | #define OPT_FILEUTILS_FORCE 1
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| 31 | #define OPT_FILEUTILS_INTERACTIVE 2
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| 32 |
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[1765] | 33 | static const char fmt[] ALIGN1 =
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| 34 | "cannot overwrite %sdirectory with %sdirectory";
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[821] | 35 |
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[1765] | 36 | int mv_main(int argc, char **argv);
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[821] | 37 | int mv_main(int argc, char **argv)
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| 38 | {
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| 39 | struct stat dest_stat;
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| 40 | const char *last;
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| 41 | const char *dest;
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| 42 | unsigned long flags;
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| 43 | int dest_exists;
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| 44 | int status = 0;
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[1765] | 45 | int copy_flag = 0;
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[821] | 46 |
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| 47 | #if ENABLE_FEATURE_MV_LONG_OPTIONS
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[1765] | 48 | applet_long_options = mv_longopts;
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[821] | 49 | #endif
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[1765] | 50 | opt_complementary = "f-i:i-f";
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| 51 | flags = getopt32(argv, "fi");
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[821] | 52 | if (optind + 2 > argc) {
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| 53 | bb_show_usage();
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| 54 | }
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| 55 |
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| 56 | last = argv[argc - 1];
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| 57 | argv += optind;
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| 58 |
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| 59 | if (optind + 2 == argc) {
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[1765] | 60 | dest_exists = cp_mv_stat(last, &dest_stat);
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| 61 | if (dest_exists < 0) {
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[821] | 62 | return 1;
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| 63 | }
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| 64 |
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| 65 | if (!(dest_exists & 2)) {
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| 66 | dest = last;
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| 67 | goto DO_MOVE;
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| 68 | }
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| 69 | }
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| 70 |
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| 71 | do {
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| 72 | dest = concat_path_file(last, bb_get_last_path_component(*argv));
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[1765] | 73 | dest_exists = cp_mv_stat(dest, &dest_stat);
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| 74 | if (dest_exists < 0) {
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[821] | 75 | goto RET_1;
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| 76 | }
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| 77 |
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| 78 | DO_MOVE:
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| 79 |
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| 80 | if (dest_exists && !(flags & OPT_FILEUTILS_FORCE) &&
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| 81 | ((access(dest, W_OK) < 0 && isatty(0)) ||
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| 82 | (flags & OPT_FILEUTILS_INTERACTIVE))) {
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[1765] | 83 | if (fprintf(stderr, "mv: overwrite '%s'? ", dest) < 0) {
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[821] | 84 | goto RET_1; /* Ouch! fprintf failed! */
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| 85 | }
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| 86 | if (!bb_ask_confirmation()) {
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| 87 | goto RET_0;
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| 88 | }
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| 89 | }
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| 90 | if (rename(*argv, dest) < 0) {
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| 91 | struct stat source_stat;
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| 92 | int source_exists;
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| 93 |
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| 94 | if (errno != EXDEV ||
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| 95 | (source_exists = cp_mv_stat(*argv, &source_stat)) < 1) {
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[1765] | 96 | bb_perror_msg("cannot rename '%s'", *argv);
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[821] | 97 | } else {
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| 98 | if (dest_exists) {
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| 99 | if (dest_exists == 3) {
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| 100 | if (source_exists != 3) {
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| 101 | bb_error_msg(fmt, "", "non-");
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| 102 | goto RET_1;
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| 103 | }
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| 104 | } else {
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| 105 | if (source_exists == 3) {
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| 106 | bb_error_msg(fmt, "non-", "");
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| 107 | goto RET_1;
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| 108 | }
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| 109 | }
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| 110 | if (unlink(dest) < 0) {
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[1765] | 111 | bb_perror_msg("cannot remove '%s'", dest);
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[821] | 112 | goto RET_1;
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| 113 | }
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| 114 | }
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[1765] | 115 | copy_flag = FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS;
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| 116 | #if ENABLE_SELINUX
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| 117 | copy_flag |= FILEUTILS_PRESERVE_SECURITY_CONTEXT;
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| 118 | #endif
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| 119 | if ((copy_file(*argv, dest, copy_flag) >= 0) &&
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[821] | 120 | (remove_file(*argv, FILEUTILS_RECUR | FILEUTILS_FORCE) >= 0)) {
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| 121 | goto RET_0;
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| 122 | }
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| 123 | }
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| 124 | RET_1:
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| 125 | status = 1;
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| 126 | }
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| 127 | RET_0:
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| 128 | if (dest != last) {
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| 129 | free((void *) dest);
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| 130 | }
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| 131 | } while (*++argv != last);
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| 132 |
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[1765] | 133 | return status;
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[821] | 134 | }
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