You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
1.8 KiB
72 lines
1.8 KiB
4 months ago
|
/*
|
||
|
|
*
|
||
|
|
* Copyright (C) 2008, The Android Open Source Project
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <dirent.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <sys/stat.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
#include <diskusage/dirsize.h>
|
||
|
|
|
||
|
|
int64_t stat_size(struct stat *s)
|
||
|
|
{
|
||
|
|
return s->st_blocks * 512;
|
||
|
|
}
|
||
|
|
|
||
|
|
int64_t calculate_dir_size(int dfd)
|
||
|
|
{
|
||
|
|
int64_t size = 0;
|
||
|
|
struct stat s;
|
||
|
|
DIR *d;
|
||
|
|
struct dirent *de;
|
||
|
|
|
||
|
|
d = fdopendir(dfd);
|
||
|
|
if (d == NULL) {
|
||
|
|
close(dfd);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
while ((de = readdir(d))) {
|
||
|
|
const char *name = de->d_name;
|
||
|
|
if (de->d_type == DT_DIR) {
|
||
|
|
int subfd;
|
||
|
|
|
||
|
|
/* always skip "." and ".." */
|
||
|
|
if (name[0] == '.') {
|
||
|
|
if (name[1] == 0)
|
||
|
|
continue;
|
||
|
|
if ((name[1] == '.') && (name[2] == 0))
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) == 0) {
|
||
|
|
size += stat_size(&s);
|
||
|
|
}
|
||
|
|
subfd = openat(dfd, name, O_RDONLY | O_DIRECTORY);
|
||
|
|
if (subfd >= 0) {
|
||
|
|
size += calculate_dir_size(subfd);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) == 0) {
|
||
|
|
size += stat_size(&s);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
closedir(d);
|
||
|
|
return size;
|
||
|
|
}
|