65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/*
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* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <openssl/sha.h>
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#include "debug.h"
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#define BUFFER_SIZE 256
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int sha_file(const char *filename, unsigned char *md)
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{
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FILE *inFile;
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SHA256_CTX shaContext;
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int bytes;
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unsigned char data[BUFFER_SIZE];
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if ((filename == NULL) || (md == NULL)) {
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ERROR("%s(): NULL argument\n", __FUNCTION__);
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return 0;
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}
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inFile = fopen(filename, "rb");
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if (inFile == NULL) {
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ERROR("Cannot read %s\n", filename);
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return 0;
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}
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SHA256_Init(&shaContext);
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while ((bytes = fread(data, 1, BUFFER_SIZE, inFile)) != 0) {
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SHA256_Update(&shaContext, data, bytes);
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}
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SHA256_Final(md, &shaContext);
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fclose(inFile);
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return 1;
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}
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