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fuzz: add fuzz_lzxpress_huffman_round_trip
This compresses some data, decompresses it, and asserts that the result is identical to the original string. Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
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68
lib/fuzzing/fuzz_lzxpress_huffman_round_trip.c
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68
lib/fuzzing/fuzz_lzxpress_huffman_round_trip.c
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@ -0,0 +1,68 @@
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/*
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Fuzzing for lzxpress_huffman{_decompress,_compress} round trip
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Copyright (C) Michael Hanselmann 2019
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Copyright (C) Douglas Bagnall 2022 <dbagnall@samba.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "fuzzing/fuzzing.h"
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#include "compression/lzxpress_huffman.h"
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int LLVMFuzzerInitialize(int *argc, char ***argv)
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{
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return 0;
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}
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int LLVMFuzzerTestOneInput(uint8_t *buf, size_t len)
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{
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/*
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* we allow compressed to be 25% bigger than decompressed.
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*/
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static uint8_t compressed[1024 * (1024 + 256)];
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static uint8_t decompressed[1024 * 1024];
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ssize_t compressed_size;
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ssize_t decompressed_size;
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struct lzxhuff_compressor_mem cmp;
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if (len > sizeof(decompressed) || len == 0) {
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return 0;
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}
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compressed_size = lzxpress_huffman_compress(&cmp,
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buf,
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len,
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compressed,
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sizeof(compressed));
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if (compressed_size < 0) {
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abort();
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}
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decompressed_size = lzxpress_huffman_decompress(compressed,
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compressed_size,
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decompressed,
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len);
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if (decompressed_size != len) {
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abort();
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}
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if (memcmp(buf, decompressed, len) != 0) {
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abort();
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}
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return 0;
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}
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@ -67,6 +67,11 @@ bld.SAMBA_BINARY('fuzz_lzxpress_huffman_compress',
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deps='fuzzing LZXPRESS afl-fuzz-main',
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fuzzer=True)
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bld.SAMBA_BINARY('fuzz_lzxpress_huffman_round_trip',
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source='fuzz_lzxpress_huffman_round_trip.c',
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deps='fuzzing LZXPRESS afl-fuzz-main',
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fuzzer=True)
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bld.SAMBA_BINARY('fuzz_ldap_decode',
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source='fuzz_ldap_decode.c',
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deps='fuzzing cli-ldap afl-fuzz-main',
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