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.
15 // * Neither the name of Google Inc. nor the names of its
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
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25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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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 <fcntl.h>
43 #include <stdio.h>
44 #include <stdlib.h>
45 #include <unistd.h>
46
47 #ifdef _WIN32
48 #ifndef STDIN_FILENO
49 #define STDIN_FILENO 0
50 #endif
51 #ifndef STDOUT_FILENO
52 #define STDOUT_FILENO 1
53 #endif
54 #endif
55
56 #include <google/protobuf/io/gzip_stream.h>
57 #include <google/protobuf/io/zero_copy_stream_impl.h>
58
59 using google::protobuf::io::FileInputStream;
60 using google::protobuf::io::GzipInputStream;
61
main(int argc,const char ** argv)62 int main(int argc, const char** argv) {
63 FileInputStream fin(STDIN_FILENO);
64 GzipInputStream in(&fin);
65
66 while (true) {
67 const void* inptr;
68 int inlen;
69 bool ok;
70 ok = in.Next(&inptr, &inlen);
71 if (!ok) {
72 break;
73 }
74 if (inlen > 0) {
75 int err = write(STDOUT_FILENO, inptr, inlen);
76 if (err != inlen) {
77 fprintf(stderr, "write unexpectedly returned %d.\n", err);
78 return 1;
79 }
80 }
81 }
82
83 return 0;
84 }
85