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130 lines
3.7 KiB
C
130 lines
3.7 KiB
C
/* radare2 - LGPL - Copyright 2009-2017 pancake */
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#include "r_hash.h"
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/* TODO: do it more beautiful with structs and not spaguetis */
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R_API int r_hash_calculate(RHash *ctx, ut64 algobit, const ut8 *buf, int len) {
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if (len < 0) {
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return 0;
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}
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if (algobit & R_HASH_MD4) {
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r_hash_do_md4 (ctx, buf, len);
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return R_HASH_SIZE_MD4;
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}
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if (algobit & R_HASH_MD5) {
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r_hash_do_md5 (ctx, buf, len);
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return R_HASH_SIZE_MD5;
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}
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if (algobit & R_HASH_SHA1) {
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r_hash_do_sha1 (ctx, buf, len);
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return R_HASH_SIZE_SHA1;
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}
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if (algobit & R_HASH_SHA256) {
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r_hash_do_sha256 (ctx, buf, len);
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return R_HASH_SIZE_SHA256;
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}
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if (algobit & R_HASH_SHA384) {
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r_hash_do_sha384 (ctx, buf, len);
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return R_HASH_SIZE_SHA384;
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}
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if (algobit & R_HASH_SHA512) {
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r_hash_do_sha512 (ctx, buf, len);
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return R_HASH_SIZE_SHA512;
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}
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if (algobit & R_HASH_CRC16) {
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ut16 res = r_hash_crc_preset (buf, len, CRC_PRESET_16);
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r_write_be16 (ctx->digest, res);
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return R_HASH_SIZE_CRC16;
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}
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if (algobit & R_HASH_CRC32) {
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ut32 res = r_hash_crc_preset (buf, len, CRC_PRESET_32);
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r_write_be32 (ctx->digest, res);
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return R_HASH_SIZE_CRC32;
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}
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if (algobit & R_HASH_XXHASH) {
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ut32 res = r_hash_xxhash (buf, len);
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memcpy (ctx->digest, &res, R_HASH_SIZE_XXHASH);
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return R_HASH_SIZE_XXHASH;
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}
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if (algobit & R_HASH_ADLER32) {
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ut32 res = r_hash_adler32 (buf, len);
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memcpy (ctx->digest, &res, R_HASH_SIZE_ADLER32);
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return R_HASH_SIZE_ADLER32;
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}
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if (algobit & R_HASH_HAMDIST) {
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*ctx->digest = r_hash_hamdist (buf, len);
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return R_HASH_SIZE_HAMDIST;
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}
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if (algobit & R_HASH_PCPRINT) {
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*ctx->digest = r_hash_pcprint (buf, len);
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return R_HASH_SIZE_PCPRINT;
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}
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if (algobit & R_HASH_PARITY) {
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*ctx->digest = r_hash_parity (buf, len);
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return R_HASH_SIZE_PARITY;
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}
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if (algobit & R_HASH_ENTROPY) {
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memset (ctx->digest, 0, R_HASH_SIZE_ENTROPY);
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*ctx->digest = (ut8) r_hash_entropy (buf, len);
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return R_HASH_SIZE_ENTROPY;
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}
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if (algobit & R_HASH_XOR) {
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*ctx->digest = r_hash_xor (buf, len);
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return R_HASH_SIZE_XOR;
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}
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if (algobit & R_HASH_XORPAIR) {
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ut16 res = r_hash_xorpair (buf, len);
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memcpy (ctx->digest, &res, 2);
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return R_HASH_SIZE_XORPAIR;
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}
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if (algobit & R_HASH_MOD255) {
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*ctx->digest = r_hash_mod255 (buf, len);
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return R_HASH_SIZE_MOD255;
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}
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if (algobit & R_HASH_LUHN) {
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*ctx->digest = r_hash_luhn (buf, len);
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return R_HASH_SIZE_LUHN;
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}
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if (algobit & R_HASH_CRC8_SMBUS) {
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ut8 res = r_hash_crc_preset (buf, len, CRC_PRESET_8_SMBUS);
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memcpy (ctx->digest, &res, R_HASH_SIZE_CRC8_SMBUS);
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return R_HASH_SIZE_CRC8_SMBUS;
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}
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if (algobit & R_HASH_CRC15_CAN) {
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ut16 res = r_hash_crc_preset (buf, len, CRC_PRESET_15_CAN);
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r_write_be16 (ctx->digest, res);
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return R_HASH_SIZE_CRC15_CAN;
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}
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if (algobit & R_HASH_CRC16_HDLC) {
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ut16 res = r_hash_crc_preset (buf, len, CRC_PRESET_16_HDLC);
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r_write_be16 (ctx->digest, res);
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return R_HASH_SIZE_CRC16_HDLC;
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}
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if (algobit & R_HASH_CRC16_USB) {
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ut16 res = r_hash_crc_preset (buf, len, CRC_PRESET_16_USB);
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r_write_be16 (ctx->digest, res);
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return R_HASH_SIZE_CRC16_USB;
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}
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if (algobit & R_HASH_CRC16_CITT) {
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ut16 res = r_hash_crc_preset (buf, len, CRC_PRESET_16_CITT);
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r_write_be16 (ctx->digest, res);
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return R_HASH_SIZE_CRC16_CITT;
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}
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if (algobit & R_HASH_CRC24) {
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ut32 res = r_hash_crc_preset (buf, len, CRC_PRESET_24);
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r_write_be24 (ctx->digest, res);
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return R_HASH_SIZE_CRC24;
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}
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if (algobit & R_HASH_CRC32C) {
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ut32 res = r_hash_crc_preset (buf, len, CRC_PRESET_32C);
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r_write_be32 (ctx->digest, res);
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return R_HASH_SIZE_CRC32C;
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}
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if (algobit & R_HASH_CRC32_ECMA_267) {
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ut32 res = r_hash_crc_preset (buf, len, CRC_PRESET_32_ECMA_267);
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r_write_be32 (ctx->digest, res);
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return R_HASH_SIZE_CRC32_ECMA_267;
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}
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return 0;
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}
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