/*
* 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
*
*/
+/* 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"
-static int flags = CP_RECUR | CP_PRESERVE_STATUS | CP_PRESERVE_SYMLINKS;
+#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
-static int remove_file(const char *path, struct stat *statbuf, void *junk)
-{
- if (unlink(path) < 0)
- return FALSE;
- return TRUE;
-}
+#define OPT_FILEUTILS_FORCE 1
+#define OPT_FILEUTILS_INTERACTIVE 2
-static int remove_directory(const char *path, struct stat *statbuf, void *junk)
-{
- if (rmdir(path) < 0)
- return FALSE;
- return TRUE;
-}
+static const char fmt[] = "cannot overwrite %sdirectory with %sdirectory";
-static int manual_rename(const char *source, const char *dest)
+int mv_main(int argc, char **argv)
{
- struct stat source_stat;
struct stat dest_stat;
- int source_exists = 1;
- int dest_exists = 1;
-
- if (stat(source, &source_stat) < 0) {
- if (errno != ENOENT) {
- perror_msg("unable to stat `%s'", source);
- return -1;
- }
- source_exists = 0;
- }
+ const char *last;
+ const char *dest;
+ unsigned long flags;
+ int dest_exists;
+ int status = 0;
- if (stat(dest, &dest_stat) < 0) {
- if (errno != ENOENT) {
- perror_msg("unable to stat `%s'", dest);
- return -1;
- }
- dest_exists = 0;
+#if ENABLE_FEATURE_MV_LONG_OPTIONS
+ bb_applet_long_options = mv_long_options;
+#endif
+ bb_opt_complementally = "f-i:i-f";
+ flags = bb_getopt_ulflags(argc, argv, "fi");
+ if (optind + 2 > argc) {
+ bb_show_usage();
}
- if (dest_exists) {
- if (S_ISDIR(dest_stat.st_mode) &&
- (!source_exists || !S_ISDIR(source_stat.st_mode))) {
- error_msg("cannot overwrite directory with non-directory");
- return -1;
- }
+ last = argv[argc - 1];
+ argv += optind;
- if (!S_ISDIR(dest_stat.st_mode) && source_exists &&
- S_ISDIR(source_stat.st_mode)) {
- error_msg("cannot overwrite non-directory with directory");
- return -1;
+ if (optind + 2 == argc) {
+ if ((dest_exists = cp_mv_stat(last, &dest_stat)) < 0) {
+ return 1;
}
- if (unlink(dest) < 0) {
- perror_msg("cannot remove `%s'", dest);
- return -1;
+ if (!(dest_exists & 2)) {
+ dest = last;
+ goto DO_MOVE;
}
}
- if (copy_file(source, dest,
- CP_RECUR | CP_PRESERVE_STATUS | CP_PRESERVE_SYMLINKS) < 0)
- return -1;
-
- if (!recursive_action(source, TRUE, FALSE, TRUE, remove_file,
- remove_directory, NULL))
- return -1;
-
- return 0;
-}
-
-static int move_file(const char *source, const char *dest)
-{
- struct stat dest_stat;
- int dest_exists = 1;
+ do {
+ dest = concat_path_file(last, bb_get_last_path_component(*argv));
- if (stat(dest, &dest_stat) < 0) {
- if (errno != ENOENT) {
- perror_msg("unable to stat `%s'", dest);
- return -1;
+ if ((dest_exists = cp_mv_stat(dest, &dest_stat)) < 0) {
+ goto RET_1;
}
- dest_exists = 0;
- }
-
- if (dest_exists && !(flags & CP_FORCE) &&
- ((access(dest, W_OK) < 0 && isatty(0)) ||
- (flags & CP_INTERACTIVE))) {
- fprintf(stderr, "mv: overwrite `%s'? ", dest);
- if (!ask_confirmation())
- return 0;
- }
- if (rename(source, dest) < 0) {
- if (errno == EXDEV)
- return manual_rename(source, dest);
+DO_MOVE:
- perror_msg("unable to rename `%s'", source);
- return -1;
- }
-
- return 0;
-}
-
-extern int mv_main(int argc, char **argv)
-{
- int status = 0;
- int opt;
- int i;
-
- while ((opt = getopt(argc, argv, "fi")) != -1)
- switch (opt) {
- case 'f':
- flags &= ~CP_INTERACTIVE;
- flags |= CP_FORCE;
- break;
- case 'i':
- flags &= ~CP_FORCE;
- flags |= CP_INTERACTIVE;
- break;
- default:
- show_usage();
+ 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 (optind + 2 > argc)
- show_usage();
-
- if (optind + 2 == argc) {
- struct stat dest_stat;
- int dest_exists = 1;
-
- if (stat(argv[optind + 1], &dest_stat) < 0) {
- if (errno != ENOENT)
- perror_msg_and_die("unable to stat `%s'", argv[optind + 1]);
- dest_exists = 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;
}
-
- if (!dest_exists || !S_ISDIR(dest_stat.st_mode)) {
- if (move_file(argv[optind], argv[optind + 1]) < 0)
- status = 1;
- return status;
+RET_0:
+ if (dest != last) {
+ free((void *) dest);
}
- }
-
- for (i = optind; i < argc - 1; i++) {
- char *dest = concat_path_file(argv[argc - 1],
- get_last_path_component(argv[i]));
- if (move_file(argv[i], dest) < 0)
- status = 1;
- free(dest);
- }
+ } while (*++argv != last);
- return status;
+ return (status);
}
projects / oweals / busybox.git / blobdiff