mirror of https://github.com/x64dbg/zydis
made output buffer in fuzzer input tool dynamic
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589c4ae691
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5eee4a6b18
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@ -24,6 +24,12 @@
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***************************************************************************************************/
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***************************************************************************************************/
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/*
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* This file implements a tool that is supposed to be fed as input for fuzzers like AFL,
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* reading a control block from stdin, allowing the fuzzer to reach every possible
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* code-path, testing any possible combination of disassembler configurations.
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*/
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#include <stddef.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdio.h>
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#include <string.h>
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#include <string.h>
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@ -36,6 +42,7 @@ typedef struct ZydisFuzzControlBlock_ {
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int decoderFlags;
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int decoderFlags;
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int formatterStyle;
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int formatterStyle;
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int formatterFlags;
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int formatterFlags;
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uint8_t bufSize;
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} ZydisFuzzControlBlock;
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} ZydisFuzzControlBlock;
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/* ============================================================================================== */
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/* ============================================================================================== */
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@ -75,6 +82,7 @@ int main()
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}
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}
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ZydisInstructionInfo info;
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ZydisInstructionInfo info;
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char *outBuf = malloc(controlBlock.bufSize);
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while (ZYDIS_SUCCESS(ZydisDecoderDecodeNextInstruction(&decoder, &info)))
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while (ZYDIS_SUCCESS(ZydisDecoderDecodeNextInstruction(&decoder, &info)))
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{
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{
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if (info.flags & ZYDIS_IFLAG_ERROR_MASK)
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if (info.flags & ZYDIS_IFLAG_ERROR_MASK)
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@ -83,10 +91,12 @@ int main()
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continue;
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continue;
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}
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}
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char outBuf[256];
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ZydisFormatterFormatInstruction(&formatter, &info, outBuf, controlBlock.bufSize);
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ZydisFormatterFormatInstruction(&formatter, &info, outBuf, sizeof(outBuf));
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puts(outBuf);
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puts(outBuf);
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}
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}
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free(outBuf);
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return 0;
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}
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}
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/* ============================================================================================== */
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/* ============================================================================================== */
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