src/bin/message.cpp

   1 /*
   2  * Copyright 2009, Michael Lotz, mmlr@mlotz.ch.
   3  * Distributed under the terms of the MIT License.
   4  */
   5
   6 #include <File.h>
   7 #include <Message.h>
   8
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12
  13
  14 int
  15 main(int argc, char *argv[])
  16 {
  17         if (argc < 2 || argc > 3) {
  18                 printf("usage: %s <flattened message file> [index]\n", argv[0]);
  19                 return 1;
  20         }
  21
  22         BFile input(argv[1], B_READ_ONLY);
  23         if (!input.IsReadable()) {
  24                 printf("cannot open \"%s\" for reading\n", argv[1]);
  25                 return 2;
  26         }
  27
  28         off_t fileSize;
  29         status_t result;
  30         if ((result = input.GetSize(&fileSize)) != B_OK) {
  31                 printf("cannot determine size of file \"%s\"\n", argv[1]);
  32                 return 3;
  33         }
  34
  35         int index = argc > 2 ? atoi(argv[2]) : 0;
  36
  37         for (int i = 1; input.Position() < fileSize; ++i) {
  38                 BMessage message;
  39                 result = message.Unflatten(&input);
  40                 if (result != B_OK) {
  41                         printf("failed to unflatten message: %s\n", strerror(result));
  42                         return 4;
  43                 }
  44                 if (index == 0 || i == index)
  45                         message.PrintToStream();
  46         }
  47
  48         return 0;
  49 }