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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <fcntl.h>
#include <sys/stat.h>
#include "dirent-util.h"
#include "path-util.h"
#include "stat-util.h"
#include "string-util.h"
int dirent_ensure_type(int dir_fd, struct dirent *de) {
STRUCT_STATX_DEFINE(sx);
int r;
assert(dir_fd >= 0);
assert(de);
if (de->d_type != DT_UNKNOWN)
return 0;
if (dot_or_dot_dot(de->d_name)) {
de->d_type = DT_DIR;
return 0;
}
/* Let's ask only for the type, nothing else. */
r = statx_fallback(dir_fd, de->d_name, AT_SYMLINK_NOFOLLOW|AT_NO_AUTOMOUNT, STATX_TYPE, &sx);
if (r < 0)
return r;
assert(FLAGS_SET(sx.stx_mask, STATX_TYPE));
de->d_type = IFTODT(sx.stx_mode);
/* If the inode is passed too, update the field, i.e. report most recent data */
if (FLAGS_SET(sx.stx_mask, STATX_INO))
de->d_ino = sx.stx_ino;
return 0;
}
bool dirent_is_file(const struct dirent *de) {
assert(de);
if (!IN_SET(de->d_type, DT_REG, DT_LNK, DT_UNKNOWN))
return false;
if (hidden_or_backup_file(de->d_name))
return false;
return true;
}
bool dirent_is_file_with_suffix(const struct dirent *de, const char *suffix) {
assert(de);
if (!IN_SET(de->d_type, DT_REG, DT_LNK, DT_UNKNOWN))
return false;
if (de->d_name[0] == '.')
return false;
if (!suffix)
return true;
return endswith(de->d_name, suffix);
}
struct dirent *readdir_ensure_type(DIR *d) {
int r;
assert(d);
/* Like readdir(), but fills in .d_type if it is DT_UNKNOWN */
for (;;) {
struct dirent *de;
errno = 0;
de = readdir(d);
if (!de)
return NULL;
r = dirent_ensure_type(dirfd(d), de);
if (r >= 0)
return de;
if (r != -ENOENT) {
errno = -r; /* We want to be compatible with readdir(), hence propagate error via errno here */
return NULL;
}
/* Vanished by now? Then skip immediately to next */
}
}
struct dirent *readdir_no_dot(DIR *d) {
assert(d);
for (;;) {
struct dirent *de;
de = readdir_ensure_type(d);
if (!de || !dot_or_dot_dot(de->d_name))
return de;
}
}
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