xref: /external/chromium_org/third_party/protobuf/src/google/protobuf/testing/zcgunzip.cc

// Protocol Buffers - Google's data interchange format
// Copyright 2009 Google Inc.  All rights reserved.
// http://code.google.com/p/protobuf/
//
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// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
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// in the documentation and/or other materials provided with the
// distribution.
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// Author: brianolson@google.com (Brian Olson)
//  Based on original Protocol Buffers design by
//  Sanjay Ghemawat, Jeff Dean, and others.
//
// Test program to verify that GzipInputStream is compatible with command line
// gunzip or java.util.zip.GzipInputStream
//
// Reads gzip stream on standard input and writes decompressed data to standard
// output.

#include "config.h"

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>

#include <google/protobuf/io/gzip_stream.h>
#include <google/protobuf/io/zero_copy_stream_impl.h>

using google::protobuf::io::FileInputStream;
using google::protobuf::io::GzipInputStream;

int main(int argc, const char** argv) {
  FileInputStream fin(STDIN_FILENO);
  GzipInputStream in(&fin);

  while (true) {
    const void* inptr;
    int inlen;
    bool ok;
    ok = in.Next(&inptr, &inlen);
    if (!ok) {
      break;
    }
    if (inlen > 0) {
      int err = write(STDOUT_FILENO, inptr, inlen);
      assert(err == inlen);
    }
  }

  return 0;
}