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xz/tests/ossfuzz/fuzz_decode_alone.c

50 lines
1.1 KiB
C

// SPDX-License-Identifier: 0BSD
///////////////////////////////////////////////////////////////////////////////
//
/// \file fuzz_decode_alone.c
/// \brief Fuzz test program for liblzma .lzma decoding
//
// Authors: Maksym Vatsyk
// Lasse Collin
//
///////////////////////////////////////////////////////////////////////////////
#include <inttypes.h>
#include <stdlib.h>
#include <stdio.h>
#include "lzma.h"
#include "fuzz_common.h"
extern int
LLVMFuzzerTestOneInput(const uint8_t *inbuf, size_t inbuf_size)
{
lzma_stream strm = LZMA_STREAM_INIT;
prepare_stream(&strm, inbuf, inbuf_size);
lzma_ret ret;
for (int i = 0; i < 3; ++i) {
ret = lzma_alone_decoder(&strm, MEM_LIMIT);
if (ret == LZMA_MEM_ERROR)
continue;
if (ret != LZMA_OK) {
// This should never happen unless the system has
// no free memory or address space to allow the small
// allocations that the initialization requires.
fprintf(stderr, "lzma_alone_decoder() failed (%d)\n",
ret);
abort();
}
fuzz_code(&strm, strm.next_in, strm.avail_in);
}
// Free the allocated memory.
lzma_end(&strm);
return 0;
}