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// CHash.cpp : implementation file
//
#include "stdafx.h"
#include "CHash.h"
#include
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;
}
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