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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "base/command_line.h" | 5 #include "base/command_line.h" |
6 #include "base/file_util.h" | 6 #include "base/file_util.h" |
7 #include "base/files/file.h" | 7 #include "base/files/file.h" |
8 #include "base/strings/string_number_conversions.h" | 8 #include "base/strings/string_number_conversions.h" |
9 #include "net/spdy/fuzzing/hpack_fuzz_util.h" | 9 #include "net/spdy/fuzzing/hpack_fuzz_util.h" |
10 | 10 |
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28 // Reads length-prefixed input blocks, applies a bit-flipping mutation to each | 28 // Reads length-prefixed input blocks, applies a bit-flipping mutation to each |
29 // block, and writes length-prefixed blocks to the output file. While blocks | 29 // block, and writes length-prefixed blocks to the output file. While blocks |
30 // themselves are mutated, the length-prefixes of written blocks are not. | 30 // themselves are mutated, the length-prefixes of written blocks are not. |
31 int main(int argc, char** argv) { | 31 int main(int argc, char** argv) { |
32 CommandLine::Init(argc, argv); | 32 CommandLine::Init(argc, argv); |
33 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); | 33 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); |
34 | 34 |
35 if (!command_line.HasSwitch(kFileToParse) || | 35 if (!command_line.HasSwitch(kFileToParse) || |
36 !command_line.HasSwitch(kFileToWrite) || | 36 !command_line.HasSwitch(kFileToWrite) || |
37 !command_line.HasSwitch(kFlipsPerThousand)) { | 37 !command_line.HasSwitch(kFlipsPerThousand)) { |
38 LOG(ERROR) << "Usage: " << argv[0] | 38 LOG(ERROR) << "Usage: " << argv[0] << " --" << kFileToParse |
39 << " --" << kFileToParse << "=/path/to/file.in" | 39 << "=/path/to/file.in" |
40 << " --" << kFileToWrite << "=/path/to/file.out" | 40 << " --" << kFileToWrite << "=/path/to/file.out" |
41 << " --" << kFlipsPerThousand << "=10"; | 41 << " --" << kFlipsPerThousand << "=10"; |
42 return -1; | 42 return -1; |
43 } | 43 } |
44 string file_to_parse = command_line.GetSwitchValueASCII(kFileToParse); | 44 string file_to_parse = command_line.GetSwitchValueASCII(kFileToParse); |
45 string file_to_write = command_line.GetSwitchValueASCII(kFileToWrite); | 45 string file_to_write = command_line.GetSwitchValueASCII(kFileToWrite); |
46 | 46 |
47 int flip_ratio = 0; | 47 int flip_ratio = 0; |
48 CHECK(base::StringToInt(command_line.GetSwitchValueASCII(kFlipsPerThousand), | 48 CHECK(base::StringToInt(command_line.GetSwitchValueASCII(kFlipsPerThousand), |
49 &flip_ratio)); | 49 &flip_ratio)); |
50 | 50 |
51 DVLOG(1) << "Reading input from " << file_to_parse; | 51 DVLOG(1) << "Reading input from " << file_to_parse; |
52 HpackFuzzUtil::Input input; | 52 HpackFuzzUtil::Input input; |
53 CHECK(base::ReadFileToString(base::FilePath(file_to_parse), &input.input)); | 53 CHECK(base::ReadFileToString(base::FilePath(file_to_parse), &input.input)); |
54 | 54 |
55 DVLOG(1) << "Writing output to " << file_to_write; | 55 DVLOG(1) << "Writing output to " << file_to_write; |
56 base::File file_out(base::FilePath(file_to_write), | 56 base::File file_out(base::FilePath(file_to_write), |
57 base::File::FLAG_CREATE_ALWAYS | base::File::FLAG_WRITE); | 57 base::File::FLAG_CREATE_ALWAYS | base::File::FLAG_WRITE); |
58 CHECK(file_out.IsValid()) << file_out.error_details(); | 58 CHECK(file_out.IsValid()) << file_out.error_details(); |
59 | 59 |
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70 string prefix = HpackFuzzUtil::HeaderBlockPrefix(block.size()); | 70 string prefix = HpackFuzzUtil::HeaderBlockPrefix(block.size()); |
71 | 71 |
72 CHECK_LT(0, file_out.WriteAtCurrentPos(prefix.data(), prefix.size())); | 72 CHECK_LT(0, file_out.WriteAtCurrentPos(prefix.data(), prefix.size())); |
73 CHECK_LT(0, file_out.WriteAtCurrentPos(block.data(), block.size())); | 73 CHECK_LT(0, file_out.WriteAtCurrentPos(block.data(), block.size())); |
74 ++block_count; | 74 ++block_count; |
75 } | 75 } |
76 CHECK(file_out.Flush()); | 76 CHECK(file_out.Flush()); |
77 DVLOG(1) << "Mutated " << block_count << " blocks."; | 77 DVLOG(1) << "Mutated " << block_count << " blocks."; |
78 return 0; | 78 return 0; |
79 } | 79 } |
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