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      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 
     43 int 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