static void confirm_or_abort(void)
{
fprintf(stderr, "Continue? [y/N] ");
fflush_all();
if (!bb_ask_confirmation())
bb_error_msg_and_die("aborting");
}
static int retry_overwrite(const char *dest, int flags)
{
if (!(flags & (FILEUTILS_FORCE|FILEUTILS_INTERACTIVE))) {
fprintf(stderr, "'%s' exists\n", dest);
return -1;
}
if (flags & FILEUTILS_INTERACTIVE) {
fprintf(stderr, "%s: overwrite '%s'? ", applet_name, dest);
if (!bb_ask_confirmation())
return 0; // not allowed to overwrite
}
if (unlink(dest) < 0) {
bb_perror_msg("cannot remove '%s'", dest);
return -1; // error
}
return 1; // ok (to try again)
}
/* Called if open of destination, link creation etc fails.
* errno must be set to relevant value ("why we cannot create dest?")
* to give reasonable error message */
static int ask_and_unlink(const char *dest, int flags)
{
int e = errno;
#if !ENABLE_FEATURE_NON_POSIX_CP
if (!(flags & (FILEUTILS_FORCE|FILEUTILS_INTERACTIVE))) {
/* Either it exists, or the *path* doesnt exist */
bb_perror_msg("can't create '%s'", dest);
return -1;
}
#endif
// else: act as if -f is always in effect.
// We don't want "can't create" msg, we want unlink to be done
// (silently unless -i). Why? POSIX cp usually succeeds with
// O_TRUNC open of existing file, and user is left ignorantly happy.
// With above block unconditionally enabled, non-POSIX cp
// will complain a lot more than POSIX one.
/* TODO: maybe we should do it only if ctty is present? */
if (flags & FILEUTILS_INTERACTIVE) {
// We would not do POSIX insanity. -i asks,
// then _unlinks_ the offender. Presto.
// (No "opening without O_EXCL", no "unlink only if -f")
// Or else we will end up having 3 open()s!
fprintf(stderr, "%s: overwrite '%s'? ", applet_name, dest);
if (!bb_ask_confirmation())
return 0; /* not allowed to overwrite */
}
if (unlink(dest) < 0) {
#if ENABLE_FEATURE_VERBOSE_CP_MESSAGE
if (e == errno && e == ENOENT) {
/* e == ENOTDIR is similar: path has non-dir component,
* but in this case we don't even reach copy_file() */
bb_error_msg("can't create '%s': Path does not exist", dest);
return -1; /* error */
}
#endif
errno = e; /* do not use errno from unlink */
bb_perror_msg("can't create '%s'", dest);
return -1; /* error */
}
return 1; /* ok (to try again) */
}
// errno must be set to relevant value ("why we cannot create dest?")
// for POSIX mode to give reasonable error message
static int ask_and_unlink(const char *dest, int flags)
{
int e = errno;
#if DO_POSIX_CP
if (!(flags & (FILEUTILS_FORCE|FILEUTILS_INTERACTIVE))) {
// Either it exists, or the *path* doesnt exist
bb_perror_msg("cannot create '%s'", dest);
return -1;
}
#endif
// If !DO_POSIX_CP, act as if -f is always in effect - we don't want
// "cannot create" msg, we want unlink to be done (silently unless -i).
// TODO: maybe we should do it only if ctty is present?
if (flags & FILEUTILS_INTERACTIVE) {
// We would not do POSIX insanity. -i asks,
// then _unlinks_ the offender. Presto.
// (No "opening without O_EXCL", no "unlink only if -f")
// Or else we will end up having 3 open()s!
fprintf(stderr, "%s: overwrite '%s'? ", applet_name, dest);
if (!bb_ask_confirmation())
return 0; // not allowed to overwrite
}
if (unlink(dest) < 0) {
#if ENABLE_FEATURE_VERBOSE_CP_MESSAGE
if (e == errno && e == ENOENT) {
/* e == ENOTDIR is similar: path has non-dir component,
* but in this case we don't even reach copy_file() */
bb_error_msg("cannot create '%s': Path does not exist", dest);
return -1; // error
}
#endif
errno = e;
bb_perror_msg("cannot create '%s'", dest);
return -1; // error
}
return 1; // ok (to try again)
}
int copy_file(const char *source, const char *dest, int flags)
{
struct stat source_stat;
struct stat dest_stat;
int dest_exists = 0;
int status = 0;
if ((!(flags & FILEUTILS_DEREFERENCE) &&
lstat(source, &source_stat) < 0) ||
((flags & FILEUTILS_DEREFERENCE) &&
stat(source, &source_stat) < 0)) {
bb_perror_msg("%s", source);
return -1;
}
if (lstat(dest, &dest_stat) < 0) {
if (errno != ENOENT) {
bb_perror_msg("unable to stat `%s'", dest);
return -1;
}
} else {
if (source_stat.st_dev == dest_stat.st_dev &&
source_stat.st_ino == dest_stat.st_ino) {
bb_error_msg("`%s' and `%s' are the same file", source, dest);
return -1;
}
dest_exists = 1;
}
if (S_ISDIR(source_stat.st_mode)) {
DIR *dp;
struct dirent *d;
mode_t saved_umask = 0;
if (!(flags & FILEUTILS_RECUR)) {
bb_error_msg("%s: omitting directory", source);
return -1;
}
/* Create DEST. */
if (dest_exists) {
if (!S_ISDIR(dest_stat.st_mode)) {
bb_error_msg("`%s' is not a directory", dest);
return -1;
}
} else {
mode_t mode;
saved_umask = umask(0);
mode = source_stat.st_mode;
if (!(flags & FILEUTILS_PRESERVE_STATUS))
mode = source_stat.st_mode & ~saved_umask;
mode |= S_IRWXU;
if (mkdir(dest, mode) < 0) {
umask(saved_umask);
bb_perror_msg("cannot create directory `%s'", dest);
return -1;
}
umask(saved_umask);
}
/* Recursively copy files in SOURCE. */
if ((dp = opendir(source)) == NULL) {
bb_perror_msg("unable to open directory `%s'", source);
status = -1;
goto end;
}
while ((d = readdir(dp)) != NULL) {
char *new_source, *new_dest;
new_source = concat_subpath_file(source, d->d_name);
if(new_source == NULL)
continue;
new_dest = concat_path_file(dest, d->d_name);
if (copy_file(new_source, new_dest, flags) < 0)
status = -1;
free(new_source);
free(new_dest);
}
/* closedir have only EBADF error, but "dp" not changes */
closedir(dp);
if (!dest_exists &&
chmod(dest, source_stat.st_mode & ~saved_umask) < 0) {
bb_perror_msg("unable to change permissions of `%s'", dest);
status = -1;
}
} else if (S_ISREG(source_stat.st_mode)) {
int src_fd;
int dst_fd = -1;
#ifdef CONFIG_FEATURE_PRESERVE_HARDLINKS
char *link_name;
if (!(flags & FILEUTILS_DEREFERENCE) &&
is_in_ino_dev_hashtable(&source_stat, &link_name)) {
if (link(link_name, dest) < 0) {
bb_perror_msg("unable to link `%s'", dest);
return -1;
}
return 0;
}
#endif
src_fd = open(source, O_RDONLY);
if (src_fd == -1) {
bb_perror_msg("unable to open `%s'", source);
return(-1);
}
if (dest_exists) {
if (flags & FILEUTILS_INTERACTIVE) {
fprintf(stderr, "%s: overwrite `%s'? ", bb_applet_name, dest);
if (!bb_ask_confirmation()) {
close (src_fd);
return 0;
}
}
dst_fd = open(dest, O_WRONLY|O_TRUNC);
if (dst_fd == -1) {
if (!(flags & FILEUTILS_FORCE)) {
bb_perror_msg("unable to open `%s'", dest);
close(src_fd);
return -1;
}
if (unlink(dest) < 0) {
bb_perror_msg("unable to remove `%s'", dest);
close(src_fd);
return -1;
}
dest_exists = 0;
}
}
if (!dest_exists) {
dst_fd = open(dest, O_WRONLY|O_CREAT, source_stat.st_mode);
if (dst_fd == -1) {
bb_perror_msg("unable to open `%s'", dest);
close(src_fd);
return(-1);
}
}
if (bb_copyfd_eof(src_fd, dst_fd) == -1)
status = -1;
if (close(dst_fd) < 0) {
bb_perror_msg("unable to close `%s'", dest);
status = -1;
}
if (close(src_fd) < 0) {
bb_perror_msg("unable to close `%s'", source);
status = -1;
}
}
else if (S_ISBLK(source_stat.st_mode) || S_ISCHR(source_stat.st_mode) ||
S_ISSOCK(source_stat.st_mode) || S_ISFIFO(source_stat.st_mode) ||
S_ISLNK(source_stat.st_mode)) {
if (dest_exists) {
if((flags & FILEUTILS_FORCE) == 0) {
fprintf(stderr, "`%s' exists\n", dest);
return -1;
}
if(unlink(dest) < 0) {
bb_perror_msg("unable to remove `%s'", dest);
return -1;
}
}
} else {
bb_error_msg("internal error: unrecognized file type");
return -1;
}
if (S_ISBLK(source_stat.st_mode) || S_ISCHR(source_stat.st_mode) ||
S_ISSOCK(source_stat.st_mode)) {
if (mknod(dest, source_stat.st_mode, source_stat.st_rdev) < 0) {
bb_perror_msg("unable to create `%s'", dest);
return -1;
}
} else if (S_ISFIFO(source_stat.st_mode)) {
if (mkfifo(dest, source_stat.st_mode) < 0) {
bb_perror_msg("cannot create fifo `%s'", dest);
return -1;
}
} else if (S_ISLNK(source_stat.st_mode)) {
char *lpath;
lpath = xreadlink(source);
if (symlink(lpath, dest) < 0) {
bb_perror_msg("cannot create symlink `%s'", dest);
return -1;
}
free(lpath);
#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
if (flags & FILEUTILS_PRESERVE_STATUS)
if (lchown(dest, source_stat.st_uid, source_stat.st_gid) < 0)
bb_perror_msg("unable to preserve ownership of `%s'", dest);
#endif
#ifdef CONFIG_FEATURE_PRESERVE_HARDLINKS
add_to_ino_dev_hashtable(&source_stat, dest);
#endif
return 0;
}
#ifdef CONFIG_FEATURE_PRESERVE_HARDLINKS
if (! S_ISDIR(source_stat.st_mode)) {
add_to_ino_dev_hashtable(&source_stat, dest);
}
#endif
end:
if (flags & FILEUTILS_PRESERVE_STATUS) {
struct utimbuf times;
times.actime = source_stat.st_atime;
times.modtime = source_stat.st_mtime;
if (utime(dest, ×) < 0)
bb_perror_msg("unable to preserve times of `%s'", dest);
if (chown(dest, source_stat.st_uid, source_stat.st_gid) < 0) {
source_stat.st_mode &= ~(S_ISUID | S_ISGID);
bb_perror_msg("unable to preserve ownership of `%s'", dest);
}
if (chmod(dest, source_stat.st_mode) < 0)
bb_perror_msg("unable to preserve permissions of `%s'", dest);
}
return status;
}
int FAST_FUNC remove_file(const char *path, int flags)
{
struct stat path_stat;
if (lstat(path, &path_stat) < 0) {
if (errno != ENOENT) {
bb_perror_msg("can't stat '%s'", path);
return -1;
}
if (!(flags & FILEUTILS_FORCE)) {
bb_perror_msg("can't remove '%s'", path);
return -1;
}
return 0;
}
if (S_ISDIR(path_stat.st_mode)) {
DIR *dp;
struct dirent *d;
int status = 0;
if (!(flags & FILEUTILS_RECUR)) {
bb_error_msg("%s: is a directory", path);
return -1;
}
if ((!(flags & FILEUTILS_FORCE) && access(path, W_OK) < 0 && isatty(0))
|| (flags & FILEUTILS_INTERACTIVE)
) {
fprintf(stderr, "%s: descend into directory '%s'? ", applet_name,
path);
if (!bb_ask_confirmation())
return 0;
}
dp = opendir(path);
if (dp == NULL) {
return -1;
}
while ((d = readdir(dp)) != NULL) {
char *new_path;
new_path = concat_subpath_file(path, d->d_name);
if (new_path == NULL)
continue;
if (remove_file(new_path, flags) < 0)
status = -1;
free(new_path);
}
if (closedir(dp) < 0) {
bb_perror_msg("can't close '%s'", path);
return -1;
}
if (flags & FILEUTILS_INTERACTIVE) {
fprintf(stderr, "%s: remove directory '%s'? ", applet_name, path);
if (!bb_ask_confirmation())
return status;
}
if (rmdir(path) < 0) {
bb_perror_msg("can't remove '%s'", path);
return -1;
}
return status;
}
/* !ISDIR */
if ((!(flags & FILEUTILS_FORCE)
&& access(path, W_OK) < 0
&& !S_ISLNK(path_stat.st_mode)
&& isatty(0))
|| (flags & FILEUTILS_INTERACTIVE)
) {
fprintf(stderr, "%s: remove '%s'? ", applet_name, path);
if (!bb_ask_confirmation())
return 0;
}
if (unlink(path) < 0) {
bb_perror_msg("can't remove '%s'", path);
return -1;
}
return 0;
}
void proceed_question(void)
{
fputs("Proceed anyway? (y,n) ", stdout);
if (bb_ask_confirmation() == 0)
exit(1);
}
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.
* If more than one of -f, -i, -n is specified , only the final one
* takes effect (it unsets previous options).
*/
opt_complementary = "-2:f-in:i-fn:n-fi";
flags = getopt32(argv, "finv");
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) {
if (flags & OPT_NOCLOBBER)
goto RET_0;
if (!(flags & OPT_FORCE)
&& ((access(dest, W_OK) < 0 && isatty(0))
|| (flags & OPT_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 (flags & OPT_VERBOSE) {
printf("'%s' -> '%s'\n", *argv, dest);
}
if (dest != last) {
free((void *) dest);
}
} while (*++argv != last);
return status;
}
extern int mv_main(int argc, char **argv)
{
struct stat source_stat;
struct stat dest_stat;
const char *last;
const char *dest;
int dest_exists;
int source_exists;
unsigned long flags;
int status = 0;
bb_applet_long_options = mv_long_options;
bb_opt_complementaly = "f-i:i-f";
flags = bb_getopt_ulflags(argc, argv, mv_getopt_short_option);
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) {
if (errno != EXDEV) {
bb_perror_msg("unable to rename `%s'", *argv);
} else if ((source_exists = cp_mv_stat(*argv, &source_stat)) >= 0) {
if (dest_exists) {
if (dest_exists & 2) {
if (!(source_exists & 2)) {
bb_error_msg(fmt, "", "non-");
goto RET_1;
}
} else {
if (source_exists & 2) {
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);
exit(status);
}
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;
}