[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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| 6 | *
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| 7 | * This program is free software; you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation; either version 2 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * This program is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 15 | * General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with this program; if not, write to the Free Software
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| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 20 | *
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| 21 | */
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| 22 |
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| 23 | /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
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| 24 | *
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| 25 | * Size reduction and improved error checking.
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| 26 | */
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| 27 |
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| 28 | #include <sys/types.h>
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| 29 | #include <sys/stat.h>
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| 30 | #include <unistd.h>
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| 31 | #include <dirent.h>
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| 32 | #include <errno.h>
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| 33 | #include <stdlib.h>
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| 34 | #include <getopt.h> /* struct option */
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| 35 | #include "busybox.h"
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| 36 | #include "libcoreutils/coreutils.h"
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| 37 |
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| 38 | #if ENABLE_FEATURE_MV_LONG_OPTIONS
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| 39 | static const struct option mv_long_options[] = {
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| 40 | { "interactive", 0, NULL, 'i' },
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| 41 | { "force", 0, NULL, 'f' },
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| 42 | { 0, 0, 0, 0 }
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| 43 | };
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| 44 | #endif
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| 45 |
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| 46 | #define OPT_FILEUTILS_FORCE 1
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| 47 | #define OPT_FILEUTILS_INTERACTIVE 2
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| 48 |
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| 49 | static const char fmt[] = "cannot overwrite %sdirectory with %sdirectory";
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| 50 |
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| 51 | int mv_main(int argc, char **argv)
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| 52 | {
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| 53 | struct stat dest_stat;
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| 54 | const char *last;
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| 55 | const char *dest;
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| 56 | unsigned long flags;
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| 57 | int dest_exists;
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| 58 | int status = 0;
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| 59 |
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| 60 | #if ENABLE_FEATURE_MV_LONG_OPTIONS
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| 61 | bb_applet_long_options = mv_long_options;
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| 62 | #endif
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| 63 | bb_opt_complementally = "f-i:i-f";
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| 64 | flags = bb_getopt_ulflags(argc, argv, "fi");
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| 65 | if (optind + 2 > argc) {
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| 66 | bb_show_usage();
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| 67 | }
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| 68 |
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| 69 | last = argv[argc - 1];
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| 70 | argv += optind;
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| 71 |
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| 72 | if (optind + 2 == argc) {
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| 73 | if ((dest_exists = cp_mv_stat(last, &dest_stat)) < 0) {
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| 74 | return 1;
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| 75 | }
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| 76 |
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| 77 | if (!(dest_exists & 2)) {
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| 78 | dest = last;
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| 79 | goto DO_MOVE;
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| 80 | }
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| 81 | }
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| 82 |
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| 83 | do {
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| 84 | dest = concat_path_file(last, bb_get_last_path_component(*argv));
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| 85 |
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| 86 | if ((dest_exists = cp_mv_stat(dest, &dest_stat)) < 0) {
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| 87 | goto RET_1;
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| 88 | }
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| 89 |
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| 90 | DO_MOVE:
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| 91 |
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| 92 | if (dest_exists && !(flags & OPT_FILEUTILS_FORCE) &&
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| 93 | ((access(dest, W_OK) < 0 && isatty(0)) ||
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| 94 | (flags & OPT_FILEUTILS_INTERACTIVE))) {
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| 95 | if (fprintf(stderr, "mv: overwrite `%s'? ", dest) < 0) {
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| 96 | goto RET_1; /* Ouch! fprintf failed! */
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| 97 | }
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| 98 | if (!bb_ask_confirmation()) {
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| 99 | goto RET_0;
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| 100 | }
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| 101 | }
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| 102 | if (rename(*argv, dest) < 0) {
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| 103 | struct stat source_stat;
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| 104 | int source_exists;
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| 105 |
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| 106 | if (errno != EXDEV ||
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| 107 | (source_exists = cp_mv_stat(*argv, &source_stat)) < 1) {
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| 108 | bb_perror_msg("unable to rename `%s'", *argv);
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| 109 | } else {
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| 110 | if (dest_exists) {
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| 111 | if (dest_exists == 3) {
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| 112 | if (source_exists != 3) {
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| 113 | bb_error_msg(fmt, "", "non-");
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| 114 | goto RET_1;
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| 115 | }
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| 116 | } else {
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| 117 | if (source_exists == 3) {
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| 118 | bb_error_msg(fmt, "non-", "");
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| 119 | goto RET_1;
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| 120 | }
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| 121 | }
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| 122 | if (unlink(dest) < 0) {
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| 123 | bb_perror_msg("cannot remove `%s'", dest);
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| 124 | goto RET_1;
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| 125 | }
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| 126 | }
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| 127 | if ((copy_file(*argv, dest,
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| 128 | FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS) >= 0) &&
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| 129 | (remove_file(*argv, FILEUTILS_RECUR | FILEUTILS_FORCE) >= 0)) {
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| 130 | goto RET_0;
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| 131 | }
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| 132 | }
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| 133 | RET_1:
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| 134 | status = 1;
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| 135 | }
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| 136 | RET_0:
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| 137 | if (dest != last) {
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| 138 | free((void *) dest);
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| 139 | }
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| 140 | } while (*++argv != last);
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| 141 |
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| 142 | return (status);
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| 143 | }
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