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      1 /* crypto/sha/sha.c */
      2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
      3  * All rights reserved.
      4  *
      5  * This package is an SSL implementation written
      6  * by Eric Young (eay (at) cryptsoft.com).
      7  * The implementation was written so as to conform with Netscapes SSL.
      8  *
      9  * This library is free for commercial and non-commercial use as long as
     10  * the following conditions are aheared to.  The following conditions
     11  * apply to all code found in this distribution, be it the RC4, RSA,
     12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
     13  * included with this distribution is covered by the same copyright terms
     14  * except that the holder is Tim Hudson (tjh (at) cryptsoft.com).
     15  *
     16  * Copyright remains Eric Young's, and as such any Copyright notices in
     17  * the code are not to be removed.
     18  * If this package is used in a product, Eric Young should be given attribution
     19  * as the author of the parts of the library used.
     20  * This can be in the form of a textual message at program startup or
     21  * in documentation (online or textual) provided with the package.
     22  *
     23  * Redistribution and use in source and binary forms, with or without
     24  * modification, are permitted provided that the following conditions
     25  * are met:
     26  * 1. Redistributions of source code must retain the copyright
     27  *    notice, this list of conditions and the following disclaimer.
     28  * 2. Redistributions in binary form must reproduce the above copyright
     29  *    notice, this list of conditions and the following disclaimer in the
     30  *    documentation and/or other materials provided with the distribution.
     31  * 3. All advertising materials mentioning features or use of this software
     32  *    must display the following acknowledgement:
     33  *    "This product includes cryptographic software written by
     34  *     Eric Young (eay (at) cryptsoft.com)"
     35  *    The word 'cryptographic' can be left out if the rouines from the library
     36  *    being used are not cryptographic related :-).
     37  * 4. If you include any Windows specific code (or a derivative thereof) from
     38  *    the apps directory (application code) you must include an acknowledgement:
     39  *    "This product includes software written by Tim Hudson (tjh (at) cryptsoft.com)"
     40  *
     41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
     42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     51  * SUCH DAMAGE.
     52  *
     53  * The licence and distribution terms for any publically available version or
     54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
     55  * copied and put under another distribution licence
     56  * [including the GNU Public Licence.]
     57  */
     58 
     59 #include <stdio.h>
     60 #include <stdlib.h>
     61 #include <openssl/sha.h>
     62 
     63 #define BUFSIZE	1024*16
     64 
     65 void do_fp(FILE *f);
     66 void pt(unsigned char *md);
     67 int read(int, void *, unsigned int);
     68 int main(int argc, char **argv)
     69 	{
     70 	int i,err=0;
     71 	FILE *IN;
     72 
     73 	if (argc == 1)
     74 		{
     75 		do_fp(stdin);
     76 		}
     77 	else
     78 		{
     79 		for (i=1; i<argc; i++)
     80 			{
     81 			IN=fopen(argv[i],"r");
     82 			if (IN == NULL)
     83 				{
     84 				perror(argv[i]);
     85 				err++;
     86 				continue;
     87 				}
     88 			printf("SHA(%s)= ",argv[i]);
     89 			do_fp(IN);
     90 			fclose(IN);
     91 			}
     92 		}
     93 	exit(err);
     94 	}
     95 
     96 void do_fp(FILE *f)
     97 	{
     98 	SHA_CTX c;
     99 	unsigned char md[SHA_DIGEST_LENGTH];
    100 	int fd;
    101 	int i;
    102 	unsigned char buf[BUFSIZE];
    103 
    104 	fd=fileno(f);
    105 	SHA_Init(&c);
    106 	for (;;)
    107 		{
    108 		i=read(fd,buf,BUFSIZE);
    109 		if (i <= 0) break;
    110 		SHA_Update(&c,buf,(unsigned long)i);
    111 		}
    112 	SHA_Final(&(md[0]),&c);
    113 	pt(md);
    114 	}
    115 
    116 void pt(unsigned char *md)
    117 	{
    118 	int i;
    119 
    120 	for (i=0; i<SHA_DIGEST_LENGTH; i++)
    121 		printf("%02x",md[i]);
    122 	printf("\n");
    123 	}
    124 
    125