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/* 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 <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
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();
}
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);
}
|
