zydis/tools/ZydisDisasm.c

93 lines
3.4 KiB
C

/***************************************************************************************************
Zyan Disassembler Engine (Zydis)
Original Author : Florian Bernd, Joel Höner
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
***************************************************************************************************/
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <Zydis/Zydis.h>
/* ============================================================================================== */
/* Entry point */
/* ============================================================================================== */
int main(int argc, char** argv)
{
if (argc != 2)
{
fprintf(stderr, "Usage: %s <input file>\n", (argc > 0 ? argv[0] : "ZydisDisasm"));
return EXIT_FAILURE;
}
FILE* file = fopen(argv[1], "rb");
if (!file)
{
fprintf(stderr, "Can not open file: %s\n", strerror(errno));
return EXIT_FAILURE;
}
ZydisFileInput input;
if (!ZYDIS_SUCCESS(ZydisInputInitFileInput(&input, file)))
{
fputs("Failed to initialize file-input\n", stderr);
return EXIT_FAILURE;
}
ZydisInstructionFormatter formatter;
if (!ZYDIS_SUCCESS(ZydisFormatterInitInstructionFormatterEx(&formatter,
ZYDIS_FORMATTER_STYLE_INTEL, ZYDIS_FORMATTER_FLAG_ALWAYS_DISPLAY_MEMORY_SEGMENT)))
{
fputs("Failed to initialized instruction-formatter\n", stderr);
return EXIT_FAILURE;
}
ZydisInstructionDecoder decoder;
if (!ZYDIS_SUCCESS(ZydisDecoderInitInstructionDecoderEx(&decoder, ZYDIS_DISASSEMBLER_MODE_64BIT,
(ZydisCustomInput*)&input, ZYDIS_DECODER_FLAG_SKIP_DATA)))
{
fputs("Failed to initialize instruction-decoder\n", stderr);
return EXIT_FAILURE;
}
char buffer[256];
ZydisInstructionInfo info;
while (ZYDIS_SUCCESS(ZydisDecoderDecodeNextInstruction(&decoder, &info)))
{
if (info.instrFlags & ZYDIS_INSTRFLAG_ERROR_MASK)
{
printf("db %02X\n", info.data[0]);
continue;
}
ZydisFormatterFormatInstruction(&formatter, &info, buffer, sizeof(buffer));
puts(buffer);
}
}
/* ============================================================================================== */