SOL_API int
sol_util_iterate_dir(const char *path,
enum sol_util_iterate_dir_reason (*iterate_dir_cb)(void *data,
const char *dir_path,
struct dirent *ent),
const void *data)
{
DIR *dir;
struct dirent *ent, *res;
int r;
long name_max;
size_t len;
SOL_NULL_CHECK(path, -EINVAL);
SOL_NULL_CHECK(iterate_dir_cb, -EINVAL);
/* See readdir_r(3) */
name_max = pathconf(path, _PC_NAME_MAX);
if (name_max == -1)
name_max = 255;
len = offsetof(struct dirent, d_name) + name_max + 1;
ent = malloc(len);
SOL_NULL_CHECK(ent, -ENOMEM);
dir = opendir(path);
if (!dir) {
int aux_errno = errno;
SOL_INF("Could not open dir [%s] to iterate: %s", path,
sol_util_strerrora(aux_errno));
free(ent);
return -aux_errno;
}
r = readdir_r(dir, ent, &res);
SOL_INT_CHECK_GOTO(r, != 0, exit);
while (res) {
if (!streq(res->d_name, ".") && !streq(res->d_name, "..")) {
r = iterate_dir_cb((void *)data, path, res);
SOL_INT_CHECK_GOTO(r, < 0, exit);
if (r == SOL_UTIL_ITERATE_DIR_STOP)
break;
}
r = readdir_r(dir, ent, &res);
SOL_INT_CHECK_GOTO(r, != 0, exit);
}
bool
sol_util_iterate_dir(const char *path, bool (*iterate_dir_cb)(void *data, const char *dir_path, struct dirent *ent), const void *data)
{
DIR *dir;
struct dirent *ent, *res;
int success;
long name_max;
size_t len;
bool result = false;
SOL_NULL_CHECK(path, false);
SOL_NULL_CHECK(iterate_dir_cb, false);
/* See readdir_r(3) */
name_max = pathconf(path, _PC_NAME_MAX);
if (name_max == -1)
name_max = 255;
len = offsetof(struct dirent, d_name) + name_max + 1;
ent = malloc(len);
SOL_NULL_CHECK(ent, false);
dir = opendir(path);
if (!dir) {
SOL_INF("Could not open dir [%s] to iterate: %s", path,
sol_util_strerrora(errno));
free(ent);
return false;
}
success = readdir_r(dir, ent, &res);
while (success == 0 && res) {
if (iterate_dir_cb((void *)data, path, res)) {
result = true;
break;
}
success = readdir_r(dir, ent, &res);
}
free(ent);
closedir(dir);
return result;
}
