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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>
* SELinux support by Yuichi Nakamura <ynakam@hitachisoft.jp>
*
* 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 <dirent.h>
#include <getopt.h> /* struct option */
#include "libbb.h"
#include "libcoreutils/coreutils.h"
#if ENABLE_FEATURE_MV_LONG_OPTIONS
static const char mv_longopts[] ALIGN1 =
"interactive\0" No_argument "i"
"force\0" No_argument "f"
;
#endif
#define OPT_FILEUTILS_FORCE 1
#define OPT_FILEUTILS_INTERACTIVE 2
static const char fmt[] ALIGN1 =
"cannot overwrite %sdirectory with %sdirectory";
int mv_main(int argc, char **argv);
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;
int copy_flag = 0;
#if ENABLE_FEATURE_MV_LONG_OPTIONS
applet_long_options = mv_longopts;
#endif
opt_complementary = "f-i:i-f";
flags = getopt32(argv, "fi");
if (optind + 2 > argc) {
bb_show_usage();
}
last = argv[argc - 1];
argv += optind;
if (optind + 2 == argc) {
dest_exists = cp_mv_stat(last, &dest_stat);
if (dest_exists < 0) {
return 1;
}
if (!(dest_exists & 2)) {
dest = last;
goto DO_MOVE;
}
}
do {
dest = concat_path_file(last, bb_get_last_path_component(*argv));
dest_exists = cp_mv_stat(dest, &dest_stat);
if (dest_exists < 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("cannot 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;
}
}
copy_flag = FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS;
#if ENABLE_SELINUX
copy_flag |= FILEUTILS_PRESERVE_SECURITY_CONTEXT;
#endif
if ((copy_file(*argv, dest, copy_flag) >= 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;
}
|
