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/*
* Copyright (C) 2016 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 "sysdeps/stat.h"
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <string>
#include <android-base/utf8.h>
// Version of stat() that takes a UTF-8 path.
int adb_stat(const char* path, struct adb_stat* s) {
// This definition of wstat seems to be missing from <sys/stat.h>.
#if defined(_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64)
#ifdef _USE_32BIT_TIME_T
#define wstat _wstat32i64
#else
#define wstat _wstat64
#endif
#else
// <sys/stat.h> has a function prototype for wstat() that should be available.
#endif
std::wstring path_wide;
if (!android::base::UTF8ToWide(path, &path_wide)) {
errno = ENOENT;
return -1;
}
// If the path has a trailing slash, stat will fail with ENOENT regardless of whether the path
// is a directory or not.
bool expected_directory = false;
while (*path_wide.rbegin() == u'/' || *path_wide.rbegin() == u'\\') {
path_wide.pop_back();
expected_directory = true;
}
struct adb_stat st;
int result = wstat(path_wide.c_str(), &st);
if (result == 0 && expected_directory) {
if (!S_ISDIR(st.st_mode)) {
errno = ENOTDIR;
return -1;
}
}
memcpy(s, &st, sizeof(st));
return result;
}
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