65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
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/*
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* @build: gcc -o bin/md5 unittest/md5_test.c util/md5.c -I. -Iutil
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include "md5.h"
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static void test() {
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unsigned char ch = '1';
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char md5[33] = {0};
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hv_md5_hex(&ch, 1, md5, sizeof(md5));
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assert(strcmp(md5, "c4ca4238a0b923820dcc509a6f75849b") == 0);
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}
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int main(int argc, char* argv[]) {
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test();
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if (argc < 2) {
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printf("Usage: md5 file\n");
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printf(" md5 -s string\n");
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return -10;
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}
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char md5[33] = {0};
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if (argc == 2) {
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const char* filepath = argv[1];
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FILE* fp = fopen(filepath, "rb");
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if (fp == NULL) {
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printf("Open file '%s' failed!\n", filepath);
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return -20;
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}
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fseek(fp, 0, SEEK_END);
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long filesize = ftell(fp);
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// printf("filesize=%ld\n", filesize);
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fseek(fp, 0, SEEK_SET);
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unsigned char* filebuf = (unsigned char*)malloc(filesize);
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size_t nread = fread(filebuf, 1, filesize, fp);
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assert(nread == filesize);
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hv_md5_hex(filebuf, filesize, md5, sizeof(md5));
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free(filebuf);
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fclose(fp);
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}
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else if (argc == 3) {
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const char* flags = argv[1];
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if (flags[0] == '-' && flags[1] == 's') {
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hv_md5_hex((unsigned char*)argv[2], strlen(argv[2]), md5, sizeof(md5));
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}
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else {
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printf("Unrecognized flags '%s'\n", flags);
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return -40;
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}
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}
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puts(md5);
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return 0;
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}
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