mirror of https://github.com/google/oss-fuzz.git
50 lines
2.1 KiB
Bash
Executable File
50 lines
2.1 KiB
Bash
Executable File
#!/bin/bash -eu
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# Copyright 2021 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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################################################################################
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# Changes in the code so we can fuzz it.
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echo "" >> $SRC/openvpn/src/openvpn/openvpn.c
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echo "ssize_t fuzz_get_random_data(void *buf, size_t len) { return 0; }" >> $SRC/openvpn/src/openvpn/fake_fuzz_header.h
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echo "#include \"fake_fuzz_header.h\"" >> $SRC/openvpn/src/openvpn/openvpn.c
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sed -i 's/read(/fuzz_read(/g' ./src/openvpn/console_systemd.c
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sed -i 's/fgets(/fuzz_fgets(/g' ./src/openvpn/console_builtin.c
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sed -i 's/fgets(/fuzz_fgets(/g' ./src/openvpn/misc.c
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sed -i 's/, tz/, (struct timezone*)tz/g' ./src/openvpn/otime.h
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sed -i 's/#include "forward.h"/#include "fuzz_header.h"\n#include "forward.h"/g' ./src/openvpn/proxy.c
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sed -i 's/select(/fuzz_select(/g' ./src/openvpn/proxy.c
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sed -i 's/send(/fuzz_send(/g' ./src/openvpn/proxy.c
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sed -i 's/recv(/fuzz_recv(/g' ./src/openvpn/proxy.c
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# Build openvpn
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autoreconf -ivf
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./configure --disable-lz4
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make
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# Make openvpn object files into a library we can link fuzzers to
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cd src/openvpn
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rm openvpn.o
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ar r libopenvpn.a *.o
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# Compile the fuzzers
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for fuzzname in fuzz_base64 fuzz_dhcp fuzz_proxy fuzz_misc fuzz_buffer; do
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$CXX -I../../src/compat/ -I../../ -I./ $CXXFLAGS -c $SRC/${fuzzname}.cpp -o ${fuzzname}.o
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$CXX ${CXXFLAGS} ${LIB_FUZZING_ENGINE} ./${fuzzname}.o -o $OUT/${fuzzname} \
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libopenvpn.a ../../src/compat/.libs/libcompat.a /usr/lib/x86_64-linux-gnu/libnsl.a \
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/usr/lib/x86_64-linux-gnu/libresolv.a /usr/lib/x86_64-linux-gnu/liblzo2.a \
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-lssl -lcrypto -ldl
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done
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