ref: c1c671d84b8b36e421f73483977ee75f7b1f46ff
parent: 2b7237e299d5018e837bae550d18deeff3c7db7d
author: Rangi <remy.oukaour+rangi42@gmail.com>
date: Sat May 23 11:46:47 EDT 2020
Remove unused tools/md5.c
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -10,8 +10,7 @@
palette \
pokemon_animation \
pokemon_animation_graphics \
- gfx \
- md5
+ gfx
all: $(tools)
@:
@@ -18,7 +17,7 @@
clean:
rm -f $(tools)
-gfx md5: common.h
+gfx: common.h
lzcomp: CFLAGS = -O3 -flto -std=c11 -Wall -Wextra -pedantic -Wno-strict-overflow -Wno-sign-compare
lzcomp: $(wildcard lz/*.c) $(wildcard lz/*.h)
--- a/tools/md5.c
+++ /dev/null
@@ -1,128 +1,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdint.h>
-
-#include "common.h"
-
-static const int s[64] = {
- 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22,
- 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20,
- 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23,
- 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21,
-};
-
-static const uint32_t K[64] = {
- 0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
- 0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
- 0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
- 0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
- 0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
- 0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8,
- 0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
- 0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
- 0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
- 0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
- 0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05,
- 0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
- 0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
- 0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
- 0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
- 0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391,
-};
-
-#define rotate_left_32(value, by) \
- ((((value) << (by)) & 0xffffffff) | ((value) >> (32 - (by))))
-
-void md5_wikipedia(uint8_t *data, int length, uint8_t *result) {
-
- uint8_t *message = calloc(length + 64, sizeof(uint8_t));
- memcpy(message, data, length);
-
- int64_t orig_bitlength = length * 8;
-
- message[length++] |= 1 << 7;
-
- while (length % 64 != (64 - 8)) {
- length++;
- }
- for (int i = 0; i < 8; i++) {
- message[length++] = (orig_bitlength >> (i * 8)) & 0xff;
- }
-
- int a0 = 0x67452301;
- int b0 = 0xefcdab89;
- int c0 = 0x98badcfe;
- int d0 = 0x10325476;
-
- for (int start = 0; start < length; start += 64) {
- uint32_t M[16];
- for (int j = 0; j < 16; j++) {
- uint8_t *word = &message[start + j * 4];
- M[j] = *word++;
- M[j] |= *word++ << 8;
- M[j] |= *word++ << 16;
- M[j] |= *word++ << 24;
- }
-
- int A = a0;
- int B = b0;
- int C = c0;
- int D = d0;
- for (int i = 0; i < 64; i++) {
- int F, g;
- switch (i / 16) {
- case 0:
- F = (B & C) | (~B & D);
- g = i;
- break;
- case 1:
- F = (D & B) | (~D & C);
- g = (5 * i + 1) % 16;
- break;
- case 2:
- F = B ^ C ^ D;
- g = (3 * i + 5) % 16;
- break;
- case 3:
- F = C ^ (B | ~D);
- g = (7 * i) % 16;
- break;
- }
- int e = D;
- D = C;
- C = B;
- B = B + rotate_left_32(A + F + K[i] + M[g], s[i]);
- A = e;
- }
- a0 += A;
- b0 += B;
- c0 += C;
- d0 += D;
- }
-
- int values[] = {a0, b0, c0, d0};
- for (int i = 0; i < 16; i++) {
- int value = values[i >> 2];
- int shift = (i % 4) * 8;
- result[i] = (value >> shift) & 0xff;
- }
-
- free(message);
-}
-
-int main(int argc, char *argv[]) {
- if (argc < 2) {
- exit(1);
- }
- char *infile = argv[1];
- int size;
- uint8_t *data = read_u8(infile, &size);
-
- uint8_t result[16];
- md5_wikipedia(data, size, result);
- for (int i = 0; i < 16; i++) {
- printf("%02x", result[i]);
- }
- printf("\n");
-}