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file (aka libmagic) fuzzers. Fixes #63

This commit is contained in:
Mike Aizatsky 2016-11-03 10:20:34 -07:00
parent c37f5a2550
commit 596c4b6baa
5 changed files with 98 additions and 0 deletions
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1
targets/README.md
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@ -7,6 +7,7 @@ Targets integrated with oss-fuzz.
| [boringssl](https://boringssl.googlesource.com/boringssl/) | [/targets/boringssl](boringssl) |
| [curl](https://curl.haxx.se/) | [/targets/curl](curl) |
| [expat](http://expat.sourceforge.net/) | [/targets/expat](expat) |
| [file (aka libmagic)](http://www.darwinsys.com/file/) | [/targets/file](file) |
| [freetype2](https://www.freetype.org/) | [/targets/freetype2](freetype2) |
| [harfbuzz](http://www.harfbuzz.org/) | [/targets/harfbuzz](harfbuzz) |
| [icu](http://site.icu-project.org/) | [/targets/icu](icu) |

21
targets/file/Dockerfile Normal file
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@ -0,0 +1,21 @@
# Copyright 2016 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
################################################################################
FROM ossfuzz/base-libfuzzer
MAINTAINER your@email.com
RUN apt-get install -y make autoconf automake libtool shtool
RUN git clone https://github.com/file/file.git
COPY build.sh magic_fuzzer.cc /src/

22
targets/file/Jenkinsfile vendored Normal file
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@ -0,0 +1,22 @@
// Copyright 2016 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
////////////////////////////////////////////////////////////////////////////////
def libfuzzerBuild = fileLoader.fromGit('infra/libfuzzer-pipeline.groovy',
'https://github.com/google/oss-fuzz.git')
libfuzzerBuild {
git = "https://github.com/file/file.git"
}

26
targets/file/build.sh Executable file
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@ -0,0 +1,26 @@
#!/bin/bash -eu
# Copyright 2016 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
################################################################################
cd /src/file
autoreconf -i
./configure --enable-static
make V=1 all
$CXX $CXXFLAGS -std=c++11 -Isrc/ \
/src/magic_fuzzer.cc -o /out/magic_fuzzer \
-lfuzzer ./src/.libs/libmagic.a $FUZZER_LDFLAGS

28
targets/file/magic_fuzzer.cc Normal file
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@ -0,0 +1,28 @@
// Copyright 2016 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <stddef.h>
#include <stdint.h>
#include <magic.h>
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
if (size < 1)
return 0;
magic_t magic = magic_open(MAGIC_NONE);
magic_buffer(magic, data, size);
magic_close(magic);
return 0;
}