| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini mv implementation for busybox |
| * |
| * Copyright (C) 2000 by Matt Kraai <kraai@alumni.carnegiemellon.edu> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) |
| * |
| * Size reduction and improved error checking. |
| */ |
| |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <unistd.h> |
| #include <dirent.h> |
| #include <errno.h> |
| #include <stdlib.h> |
| #include "busybox.h" |
| #include "libcoreutils/coreutils.h" |
| |
| static const char *fmt = "cannot overwrite %sdirectory with %sdirectory"; |
| |
| extern int mv_main(int argc, char **argv) |
| { |
| struct stat source_stat; |
| struct stat dest_stat; |
| const char *last; |
| const char *dest; |
| int dest_exists; |
| int source_exists; |
| int opt; |
| int flags = 0; |
| int status = 0; |
| |
| while ((opt = getopt(argc, argv, "fi")) > 0) { |
| flags &= ~(FILEUTILS_INTERACTIVE | FILEUTILS_FORCE); |
| if (opt == 'i') { |
| flags |= FILEUTILS_INTERACTIVE; |
| } else if (opt == 'f') { |
| flags |= FILEUTILS_FORCE; |
| } else { |
| bb_show_usage(); |
| } |
| } |
| |
| if (optind + 2 > argc) |
| bb_show_usage(); |
| |
| last = argv[argc - 1]; |
| argv += optind; |
| |
| if (optind + 2 == argc) { |
| if ((dest_exists = cp_mv_stat(last, &dest_stat)) < 0) { |
| return 1; |
| } |
| |
| if (!(dest_exists & 2)) { |
| dest = last; |
| goto DO_MOVE; |
| } |
| } |
| |
| do { |
| dest = concat_path_file(last, |
| bb_get_last_path_component(*argv)); |
| |
| if ((dest_exists = cp_mv_stat(dest, &dest_stat)) < 0) { |
| goto RET_1; |
| } |
| |
| DO_MOVE: |
| |
| if (dest_exists && !(flags & FILEUTILS_FORCE) && |
| ((access(dest, W_OK) < 0 && isatty(0)) || |
| (flags & FILEUTILS_INTERACTIVE))) { |
| if (fprintf(stderr, "mv: overwrite `%s'? ", dest) < 0) { |
| goto RET_1; /* Ouch! fprintf failed! */ |
| } |
| if (!bb_ask_confirmation()) |
| goto RET_0; |
| } |
| |
| if (rename(*argv, dest) < 0) { |
| if (errno != EXDEV) { |
| bb_perror_msg("unable to rename `%s'", *argv); |
| } else if ((source_exists = cp_mv_stat(*argv, &source_stat)) >= 0) { |
| if (dest_exists) { |
| if (dest_exists & 2) { |
| if (!(source_exists & 2)) { |
| bb_error_msg(fmt, "", "non-"); |
| goto RET_1; |
| } |
| } else { |
| if (source_exists & 2) { |
| bb_error_msg(fmt, "non-", ""); |
| goto RET_1; |
| } |
| } |
| if (unlink(dest) < 0) { |
| bb_perror_msg("cannot remove `%s'", dest); |
| goto RET_1; |
| } |
| } |
| |
| if ((copy_file(*argv, dest, |
| FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS) >= 0) |
| && (remove_file(*argv, FILEUTILS_RECUR | FILEUTILS_FORCE) >= 0) |
| ) { |
| goto RET_0; |
| } |
| |
| } |
| RET_1: |
| status = 1; |
| } |
| |
| RET_0: |
| if (dest != last) { |
| free((void *) dest); |
| } |
| |
| } while (*++argv != last); |
| |
| exit(status); |
| } |