41 lines
774 B
C
41 lines
774 B
C
/*
|
|
* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#include <openssl/sha.h>
|
|
#include <stdio.h>
|
|
|
|
#include "debug.h"
|
|
|
|
#define BUFFER_SIZE 256
|
|
|
|
int sha_file(const char *filename, unsigned char *md)
|
|
{
|
|
FILE *inFile;
|
|
SHA256_CTX shaContext;
|
|
int bytes;
|
|
unsigned char data[BUFFER_SIZE];
|
|
|
|
if ((filename == NULL) || (md == NULL)) {
|
|
ERROR("%s(): NULL argument\n", __FUNCTION__);
|
|
return 0;
|
|
}
|
|
|
|
inFile = fopen(filename, "rb");
|
|
if (inFile == NULL) {
|
|
ERROR("Cannot read %s\n", filename);
|
|
return 0;
|
|
}
|
|
|
|
SHA256_Init(&shaContext);
|
|
while ((bytes = fread(data, 1, BUFFER_SIZE, inFile)) != 0) {
|
|
SHA256_Update(&shaContext, data, bytes);
|
|
}
|
|
SHA256_Final(md, &shaContext);
|
|
|
|
fclose(inFile);
|
|
return 1;
|
|
}
|