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istgt

    1: /*
    2:  * Copyright (C) 2008-2010 Daisuke Aoyama <aoyama@peach.ne.jp>.
    3:  * All rights reserved.
    4:  *
    5:  * Redistribution and use in source and binary forms, with or without
    6:  * modification, are permitted provided that the following conditions
    7:  * are met:
    8:  * 1. Redistributions of source code must retain the above copyright
    9:  *    notice, this list of conditions and the following disclaimer.
   10:  * 2. Redistributions in binary form must reproduce the above copyright
   11:  *    notice, this list of conditions and the following disclaimer in the
   12:  *    documentation and/or other materials provided with the distribution.
   13:  *
   14:  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17:  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
   18:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24:  * SUCH DAMAGE.
   25:  *
   26:  */
   27: 
   28: #ifdef HAVE_CONFIG_H
   29: #include "config.h"
   30: #endif
   31: 
   32: #include <inttypes.h>
   33: #include <stdint.h>
   34: 
   35: #include <stddef.h>
   36: #include <openssl/md5.h>
   37: 
   38: #include "istgt.h"
   39: #include "istgt_md5.h"
   40: 
   41: int
   42: istgt_md5init(ISTGT_MD5CTX *md5ctx)
   43: {
   44: 	int rc;
   45: 
   46: 	if (md5ctx == NULL)
   47: 		return -1;
   48: 	rc = MD5_Init(&md5ctx->md5ctx);
   49: 	return rc;
   50: }
   51: 
   52: int
   53: istgt_md5final(void *md5, ISTGT_MD5CTX *md5ctx)
   54: {
   55: 	int rc;
   56: 
   57: 	if (md5ctx == NULL || md5 == NULL)
   58: 		return -1;
   59: 	rc = MD5_Final(md5, &md5ctx->md5ctx);
   60: 	return rc;
   61: }
   62: 
   63: int
   64: istgt_md5update(ISTGT_MD5CTX *md5ctx, const void *data, size_t len)
   65: {
   66: 	int rc;
   67: 
   68: 	if (md5ctx == NULL)
   69: 		return -1;
   70: 	if (data == NULL || len <= 0)
   71: 		return 0;
   72: 	rc = MD5_Update(&md5ctx->md5ctx, data, len);
   73: 	return rc;
   74: }