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/* crypto/ripemd/rmd160.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>
#include <stdlib.h>
#include <openssl/ripemd.h>

#define BUFSIZE	1024*16

void do_fp(FILE *f);
void pt(unsigned char *md);
#if !defined(_OSD_POSIX) && !defined(__DJGPP__)
int read(int, void *, unsigned int);
#endif

int main(int argc, char **argv)
	{
	int i,err=0;
	FILE *IN;

	if (argc == 1)
		{
		do_fp(stdin);
		}
	else
		{
		for (i=1; i<argc; i++)
			{
			IN=fopen(argv[i],"r");
			if (IN == NULL)
				{
				perror(argv[i]);
				err++;
				continue;
				}
			printf("RIPEMD160(%s)= ",argv[i]);
			do_fp(IN);
			fclose(IN);
			}
		}
	exit(err);
	}

void do_fp(FILE *f)
	{
	RIPEMD160_CTX c;
	unsigned char md[RIPEMD160_DIGEST_LENGTH];
	int fd;
	int i;
	static unsigned char buf[BUFSIZE];

	fd=fileno(f);
	RIPEMD160_Init(&c);
	for (;;)
		{
		i=read(fd,buf,BUFSIZE);
		if (i <= 0) break;
		RIPEMD160_Update(&c,buf,(unsigned long)i);
		}
	RIPEMD160_Final(&(md[0]),&c);
	pt(md);
	}

void pt(unsigned char *md)
	{
	int i;

	for (i=0; i<RIPEMD160_DIGEST_LENGTH; i++)
		printf("%02x",md[i]);
	printf("\n");
	}