1// Protocol Buffers - Google's data interchange format
2// Copyright 2009 Google Inc.  All rights reserved.
3// https://developers.google.com/protocol-buffers/
4//
5// Redistribution and use in source and binary forms, with or without
6// modification, are permitted provided that the following conditions are
7// met:
8//
9//     * Redistributions of source code must retain the above copyright
10// notice, this list of conditions and the following disclaimer.
11//     * Redistributions in binary form must reproduce the above
12// copyright notice, this list of conditions and the following disclaimer
13// in the documentation and/or other materials provided with the
14// distribution.
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16// contributors may be used to endorse or promote products derived from
17// this software without specific prior written permission.
18//
19// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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25// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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29// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31// Author: brianolson@google.com (Brian Olson)
32//  Based on original Protocol Buffers design by
33//  Sanjay Ghemawat, Jeff Dean, and others.
34//
35// Test program to verify that GzipInputStream is compatible with command line
36// gunzip or java.util.zip.GzipInputStream
37//
38// Reads gzip stream on standard input and writes decompressed data to standard
39// output.
40
41#include <assert.h>
42#include <stdio.h>
43#include <stdlib.h>
44#include <fcntl.h>
45
46#ifdef _WIN32
47#ifndef STDIN_FILENO
48#define STDIN_FILENO 0
49#endif
50#ifndef STDOUT_FILENO
51#define STDOUT_FILENO 1
52#endif
53#endif
54
55#include <google/protobuf/io/gzip_stream.h>
56#include <google/protobuf/io/zero_copy_stream_impl.h>
57
58using google::protobuf::io::FileInputStream;
59using google::protobuf::io::GzipInputStream;
60
61int main(int argc, const char** argv) {
62  FileInputStream fin(STDIN_FILENO);
63  GzipInputStream in(&fin);
64
65  while (true) {
66    const void* inptr;
67    int inlen;
68    bool ok;
69    ok = in.Next(&inptr, &inlen);
70    if (!ok) {
71      break;
72    }
73    if (inlen > 0) {
74      int err = write(STDOUT_FILENO, inptr, inlen);
75      assert(err == inlen);
76    }
77  }
78
79  return 0;
80}
81