busybox/libbb/remove_file.c
Denys Vlasenko 17f8418ea7 Add conditional support for -v / --verbose
With FEATURE_VERBOSE off, practically no size change.
With it on:

function                                             old     new   delta
remove_file                                          493     556     +63
install_main                                         719     765     +46
bb_make_directory                                    383     419     +36
rmdir_main                                           162     191     +29
copy_file                                           1516    1544     +28
mv_main                                              502     525     +23
cmp_main                                             677     693     +16
bbconfig_config_bz2                                 5264    5279     +15
mkdir_main                                           158     168     +10
install_longopts                                      66      76     +10
rm_main                                              167     175      +8
nexpr                                                840     846      +6
scan_tree                                            275     280      +5
fsck_main                                           1807    1811      +4
ed_main                                             2541    2545      +4
expand_one_var                                      1574    1575      +1
swap_on_off_main                                     420     418      -2
parse_command                                       1443    1440      -3
redirect                                            1279    1274      -5
do_load                                              946     918     -28
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 16/4 up/down: 304/-38)          Total: 266 bytes

Based on the patch by Igor Živković.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-05-19 16:23:50 +02:00

111 lines
2.2 KiB
C

/* vi: set sw=4 ts=4: */
/*
* Mini remove_file implementation for busybox
*
* Copyright (C) 2001 Matt Kraai <kraai@alumni.carnegiemellon.edu>
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
#include "libbb.h"
/* Used from NOFORK applets. Must not allocate anything */
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;
}
if (flags & FILEUTILS_VERBOSE) {
printf("removed directory: '%s'\n", path);
}
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;
}
if (flags & FILEUTILS_VERBOSE) {
printf("removed '%s'\n", path);
}
return 0;
}