| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini mv implementation for busybox |
| * |
| * Copyright (C) 2000 by Matt Kraai <kraai@alumni.carnegiemellon.edu> |
| * |
| * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
| */ |
| |
| /* 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 <getopt.h> /* struct option */ |
| #include "busybox.h" |
| #include "libcoreutils/coreutils.h" |
| |
| #if ENABLE_FEATURE_MV_LONG_OPTIONS |
| static const struct option mv_long_options[] = { |
| { "interactive", 0, NULL, 'i' }, |
| { "force", 0, NULL, 'f' }, |
| { 0, 0, 0, 0 } |
| }; |
| #endif |
| |
| #define OPT_FILEUTILS_FORCE 1 |
| #define OPT_FILEUTILS_INTERACTIVE 2 |
| |
| static const char fmt[] = "cannot overwrite %sdirectory with %sdirectory"; |
| |
| int mv_main(int argc, char **argv) |
| { |
| struct stat dest_stat; |
| const char *last; |
| const char *dest; |
| unsigned long flags; |
| int dest_exists; |
| int status = 0; |
| |
| #if ENABLE_FEATURE_MV_LONG_OPTIONS |
| applet_long_options = mv_long_options; |
| #endif |
| opt_complementary = "f-i:i-f"; |
| flags = getopt32(argc, argv, "fi"); |
| 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 & OPT_FILEUTILS_FORCE) && |
| ((access(dest, W_OK) < 0 && isatty(0)) || |
| (flags & OPT_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) { |
| struct stat source_stat; |
| int source_exists; |
| |
| if (errno != EXDEV || |
| (source_exists = cp_mv_stat(*argv, &source_stat)) < 1) { |
| bb_perror_msg("unable to rename `%s'", *argv); |
| } else { |
| if (dest_exists) { |
| if (dest_exists == 3) { |
| if (source_exists != 3) { |
| bb_error_msg(fmt, "", "non-"); |
| goto RET_1; |
| } |
| } else { |
| if (source_exists == 3) { |
| 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); |
| |
| return (status); |
| } |