/*************************************************************************
|
> File Name: md5sum.cpp
|
> Author: jkand.huang
|
> Mail: jkand.huang@rock-chips.com
|
> Created Time: Thu 07 Mar 2019 03:06:21 PM CST
|
************************************************************************/
|
|
#include <openssl/md5.h>
|
#include <stdio.h>
|
#include <unistd.h>
|
#include <sys/types.h>
|
#include <sys/stat.h>
|
#include <string.h>
|
#include "log.h"
|
bool checkdata(const char *dest_path, unsigned char *out_md5sum, long long offset, long long checkSize){
|
MD5_CTX ctx;
|
unsigned char md5sum[16];
|
char buffer[512];
|
int len = 0;
|
|
FILE *fp = fopen(dest_path, "rb");
|
|
if(fp == NULL){
|
LOGE("open file failed %s", dest_path);
|
return false;
|
}
|
|
fseek(fp, offset, SEEK_SET);
|
|
MD5_Init(&ctx);
|
|
long long readSize = 0;
|
LOGE("hkh checkSize = %lld.\n", checkSize);
|
#if 0
|
while((len = fread(buffer, 1, 512, fp)) > 0){
|
readSize += len;
|
if(readSize > checkSize){
|
LOGE("len = %d.\n", len);
|
len = (len - (readSize-checkSize));
|
LOGE("len = %d.\n", len);
|
}
|
|
MD5_Update(&ctx, buffer, len);
|
memset(buffer, 0, sizeof(buffer));
|
}
|
#endif
|
int step = 512;
|
while(checkSize > 0){
|
readSize = checkSize > step ? step: checkSize;
|
if(fread(buffer, 1, readSize, fp) != readSize){
|
LOGE("fread error.\n");
|
return false;
|
}
|
checkSize = checkSize - readSize;
|
MD5_Update(&ctx, buffer, readSize);
|
memset(buffer, 0, sizeof(buffer));
|
}
|
MD5_Final(md5sum, &ctx);
|
fclose(fp);
|
|
printf("\n");
|
printf("new md5:");
|
for(int i = 0; i < 16; i++){
|
printf("%02x", md5sum[i]);
|
}
|
//change
|
if(out_md5sum != NULL){
|
memset(out_md5sum, 0, 16);
|
memcpy(out_md5sum, md5sum, 16);
|
}
|
#if 0
|
printf("\n");
|
printf("old md5:");
|
for(int i = 0; i < 32; i++){
|
printf("%02x", source_md5sum[i]);
|
}
|
printf("\n");
|
|
for(int i = 0; i < 16; i++){
|
if(md5sum[i] != source_md5sum[i]){
|
LOGE("MD5Check is error of %s", dest_path);
|
return false;
|
}
|
}
|
#endif
|
LOGI("MD5Check is ok of %s", dest_path);
|
return true;
|
}
|
|
bool comparefile(const char *dest_path, const char *source_path, long long dest_offset, long long source_offset, long long checkSize){
|
unsigned char md5sum_source[16];
|
unsigned char md5sum_dest[16];
|
checkdata(dest_path, md5sum_dest, dest_offset, checkSize);
|
checkdata(source_path, md5sum_source, source_offset, checkSize);
|
for(int i = 0; i < 16; i++){
|
if(md5sum_dest[i] != md5sum_source[i]){
|
LOGE("MD5Check is error of %s", dest_path);
|
return false;
|
}
|
}
|
return true;
|
}
|
|
bool compareMd5sum(const char *dest_path, unsigned char *source_md5sum, long long offset, long long checkSize){
|
unsigned char md5sum[16];
|
|
checkdata(dest_path, md5sum, offset, checkSize);
|
|
unsigned char tmp[16][2] = {
|
0x30, 0x00,
|
0x31, 0x01,
|
0x32, 0x02,
|
0x33, 0x03,
|
0x34, 0x04,
|
0x35, 0x05,
|
0x36, 0x06,
|
0x37, 0x07,
|
0x38, 0x08,
|
0x39, 0x09,
|
0x61, 0x0a,
|
0x62, 0x0b,
|
0x63, 0x0c,
|
0x64, 0x0d,
|
0x65, 0x0e,
|
0x66, 0x0f,
|
};
|
for(int i = 0; i < 32; i = i+2){
|
for(int j = 0; j < 16; j++){
|
if(tmp[j][1] == (md5sum[i/2] >> 4)){
|
if(source_md5sum[i] != tmp[j][0]){
|
LOGE("MD5Check is error of %s", dest_path);
|
return false;
|
}
|
}
|
if(tmp[j][1] == (md5sum[i/2] & 0x0f)){
|
if(source_md5sum[i+1] != tmp[j][0]){
|
LOGE("MD5Check is error of %s", dest_path);
|
return false;
|
}
|
}
|
}
|
}
|
return true;
|
}
|
