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authorTao Bao <tbao@google.com>2018-05-04 07:41:23 +0200
committerTao Bao <tbao@google.com>2018-05-04 08:17:29 +0200
commit17054c051a846743ecbfacec5986fe8b35152c9d (patch)
tree093bdd474d8f333ed4458662ce20e79ce48d57c6 /otautil/DirUtil.cpp
parentotautil: Only build the needed files for host build. (diff)
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Diffstat (limited to 'otautil/DirUtil.cpp')
-rw-r--r--otautil/DirUtil.cpp116
1 files changed, 0 insertions, 116 deletions
diff --git a/otautil/DirUtil.cpp b/otautil/DirUtil.cpp
deleted file mode 100644
index 61c832813..000000000
--- a/otautil/DirUtil.cpp
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Copyright (C) 2007 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 "otautil/DirUtil.h"
-
-#include <dirent.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include <string>
-
-#include <selinux/label.h>
-#include <selinux/selinux.h>
-
-enum class DirStatus { DMISSING, DDIR, DILLEGAL };
-
-static DirStatus dir_status(const std::string& path) {
- struct stat sb;
- if (stat(path.c_str(), &sb) == 0) {
- // Something's there; make sure it's a directory.
- if (S_ISDIR(sb.st_mode)) {
- return DirStatus::DDIR;
- }
- errno = ENOTDIR;
- return DirStatus::DILLEGAL;
- } else if (errno != ENOENT) {
- // Something went wrong, or something in the path is bad. Can't do anything in this situation.
- return DirStatus::DILLEGAL;
- }
- return DirStatus::DMISSING;
-}
-
-int mkdir_recursively(const std::string& input_path, mode_t mode, bool strip_filename,
- const selabel_handle* sehnd) {
- // Check for an empty string before we bother making any syscalls.
- if (input_path.empty()) {
- errno = ENOENT;
- return -1;
- }
-
- // Allocate a path that we can modify; stick a slash on the end to make things easier.
- std::string path = input_path;
- if (strip_filename) {
- // Strip everything after the last slash.
- size_t pos = path.rfind('/');
- if (pos == std::string::npos) {
- errno = ENOENT;
- return -1;
- }
- path.resize(pos + 1);
- } else {
- // Make sure that the path ends in a slash.
- path.push_back('/');
- }
-
- // See if it already exists.
- DirStatus ds = dir_status(path);
- if (ds == DirStatus::DDIR) {
- return 0;
- } else if (ds == DirStatus::DILLEGAL) {
- return -1;
- }
-
- // Walk up the path from the root and make each level.
- size_t prev_end = 0;
- while (prev_end < path.size()) {
- size_t next_end = path.find('/', prev_end + 1);
- if (next_end == std::string::npos) {
- break;
- }
- std::string dir_path = path.substr(0, next_end);
- // Check this part of the path and make a new directory if necessary.
- switch (dir_status(dir_path)) {
- case DirStatus::DILLEGAL:
- // Could happen if some other process/thread is messing with the filesystem.
- return -1;
- case DirStatus::DMISSING: {
- char* secontext = nullptr;
- if (sehnd) {
- selabel_lookup(const_cast<selabel_handle*>(sehnd), &secontext, dir_path.c_str(), mode);
- setfscreatecon(secontext);
- }
- int err = mkdir(dir_path.c_str(), mode);
- if (secontext) {
- freecon(secontext);
- setfscreatecon(nullptr);
- }
- if (err != 0) {
- return -1;
- }
- break;
- }
- default:
- // Already exists.
- break;
- }
- prev_end = next_end;
- }
- return 0;
-}