adb_utils.cpp revision 14b65736c5ed487ebba93d3ccc3e261ece71f833 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "adb_utils.h"
18
19#include <stdlib.h>
20#include <sys/stat.h>
21#include <sys/types.h>
22#include <unistd.h>
23
24#include "sysdeps.h"
25
26bool getcwd(std::string* s) {
27  char* cwd = getcwd(nullptr, 0);
28  if (cwd != nullptr) *s = cwd;
29  free(cwd);
30  return (cwd != nullptr);
31}
32
33bool directory_exists(const std::string& path) {
34  struct stat sb;
35  return lstat(path.c_str(), &sb) != -1 && S_ISDIR(sb.st_mode);
36}
37
38std::string escape_arg(const std::string& s) {
39  std::string result = s;
40
41  // Insert a \ before any ' in the string.
42  for (auto it = result.begin(); it != result.end(); ++it) {
43      if (*it == '\'') {
44          it = result.insert(it, '\\') + 1;
45      }
46  }
47
48  // Prefix and suffix the whole string with '.
49  result.insert(result.begin(), '\'');
50  result.push_back('\'');
51  return result;
52}
53