这个两个东东,是我在网上找到的。小小的修改了一下方便大家使用。
一个是 获取文件哈希值的,另外一个是获取torrent文件磁力链接的哈希值。
整理好的类下载地址:
文件hash值:
http://pan.baidu.com/share/link?shareid=3718436681&uk=3037189616
torrent Hash值:
http://pan.baidu.com/share/link?shareid=3728056606&uk=3037189616
这个是QQ群 欢迎加入,一起学习编程。
// CHash.h : header file #pragma once
#include "sha1.h" #define SIZE_OF_BUFFER 16000 class CHash
{
// Construction
public:
CString SHA1Hash(CString strHashFile);
};
// CHash.cpp : implementation file
//
#include "stdafx.h"
#include "CHash.h"
#include <atlconv.h> CString CHash::SHA1Hash(CString strHashFile)
{
USES_CONVERSION;
FILE *fileToHash = NULL;
unsigned long lenRead = 0;
unsigned char fileBuf[SIZE_OF_BUFFER];
sha1_ctx m_sha1;
unsigned char* tempOut = new unsigned char[256];
CString tempHash;
CString outHash; sha1_begin(&m_sha1); fileToHash = fopen(T2A(strHashFile), "rb");
do
{
lenRead = fread(fileBuf, 1, SIZE_OF_BUFFER, fileToHash);
if(lenRead != 0)
{
sha1_hash(fileBuf, lenRead, &m_sha1);
}
} while (lenRead == SIZE_OF_BUFFER); fclose(fileToHash); fileToHash = NULL; sha1_end(tempOut, &m_sha1); for (int i = 0 ; i < 20 ; i++)
{
char tmp[3];
_itoa(tempOut[i], tmp, 16);
if (strlen(tmp) == 1)
{
tmp[1] = tmp[0];
tmp[0] = '0';
tmp[2] = '\0';
}
tempHash += tmp; } delete[] tempOut; outHash = tempHash; return outHash;
}