fs_config.c revision 66339ad5cebeae8f4cbf7e335c67368abbb91223 
1/*
2 * Copyright (C) 2008 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 <stdio.h>
18#include <sys/stat.h>
19#include <errno.h>
20#include <unistd.h>
21#include <string.h>
22
23#include "private/android_filesystem_config.h"
24
25// This program takes a list of files and directories (indicated by a
26// trailing slash) on the stdin, and prints to stdout each input
27// filename along with its desired uid, gid, and mode (in octal).
28// The leading slash should be stripped from the input.
29//
30// Example input:
31//
32//    system/etc/dbus.conf
33//    data/app/
34//
35// Output:
36//
37//    system/etc/dbus.conf 1002 1002 440
38//    data/app 1000 1000 771
39//
40// Note that the output will omit the trailing slash from
41// directories.
42
43int main(int argc, char** argv) {
44  char buffer[1024];
45
46  while (fgets(buffer, 1023, stdin) != NULL) {
47    int is_dir = 0;
48    int i;
49    for (i = 0; i < 1024 && buffer[i]; ++i) {
50      switch (buffer[i]) {
51        case '\n':
52          buffer[i-is_dir] = '\0';
53          i = 1025;
54          break;
55        case '/':
56          is_dir = 1;
57          break;
58        default:
59          is_dir = 0;
60          break;
61      }
62    }
63
64    unsigned uid = 0, gid = 0, mode = 0;
65    fs_config(buffer, is_dir, &uid, &gid, &mode);
66    printf("%s %d %d %o\n", buffer, uid, gid, mode);
67  }
68  return 0;
69}
70