mirror of
https://github.com/sheumann/hush.git
synced 2024-12-21 08:29:45 +00:00
136 lines
3.1 KiB
C
136 lines
3.1 KiB
C
/* 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 "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
|
|
|
|
int mv_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int mv_main(int argc, char **argv)
|
|
{
|
|
struct stat dest_stat;
|
|
const char *last;
|
|
const char *dest;
|
|
unsigned flags;
|
|
int dest_exists;
|
|
int status = 0;
|
|
int copy_flag = 0;
|
|
|
|
#if ENABLE_FEATURE_MV_LONG_OPTIONS
|
|
applet_long_options = mv_longopts;
|
|
#endif
|
|
// Need at least two arguments
|
|
// -f unsets -i, -i unsets -f
|
|
opt_complementary = "-2:f-i:i-f";
|
|
flags = getopt32(argv, "fi");
|
|
argc -= optind;
|
|
argv += optind;
|
|
last = argv[argc - 1];
|
|
|
|
if (argc == 2) {
|
|
dest_exists = cp_mv_stat(last, &dest_stat);
|
|
if (dest_exists < 0) {
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
if (!(dest_exists & 2)) { /* last is not a directory */
|
|
dest = last;
|
|
goto DO_MOVE;
|
|
}
|
|
}
|
|
|
|
do {
|
|
dest = concat_path_file(last, bb_get_last_path_component_strip(*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_stat2(*argv, &source_stat, lstat)) < 1
|
|
) {
|
|
bb_perror_msg("can't rename '%s'", *argv);
|
|
} else {
|
|
static const char fmt[] ALIGN1 =
|
|
"can't overwrite %sdirectory with %sdirectory";
|
|
|
|
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("can't remove '%s'", dest);
|
|
goto RET_1;
|
|
}
|
|
}
|
|
/* FILEUTILS_RECUR also prevents nasties like
|
|
* "read from device and write contents to dst"
|
|
* instead of "create same device node" */
|
|
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;
|
|
}
|