// Protocol Buffers - Google's data interchange format
// Copyright 2009 Google Inc. All rights reserved.
// http://code.google.com/p/protobuf/
//
// Redistribution and use in source and binary forms, with or without
// 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.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Author: brianolson@google.com (Brian Olson)
// Based on original Protocol Buffers design by
// Sanjay Ghemawat, Jeff Dean, and others.
//
// Test program to verify that GzipOutputStream is compatible with command line
// gzip or java.util.zip.GzipOutputStream
//
// Reads data on standard input and writes compressed gzip stream to standard
// output.
#include "config.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::FileOutputStream;
using google::protobuf::io::GzipOutputStream;
int main(int argc, const char** argv) {
FileOutputStream fout(STDOUT_FILENO);
GzipOutputStream out(&fout);
int readlen;
while (true) {
void* outptr;
int outlen;
bool ok;
do {
ok = out.Next(&outptr, &outlen);
if (!ok) {
break;
}
} while (outlen <= 0);
readlen = read(STDIN_FILENO, outptr, outlen);
if (readlen <= 0) {
out.BackUp(outlen);
break;
}
if (readlen < outlen) {
out.BackUp(outlen - readlen);
}
}
return 0;
}