apps/dgst.c

   1 /* apps/dgst.c */
   2 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@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@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@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@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 <string.h>
  61 #include <stdlib.h>
  62 #include "apps.h"
  63 #include "bio.h"
  64 #include "err.h"
  65 #include "evp.h"
  66 #include "objects.h"
  67 #include "x509.h"
  68 #include "pem.h"
  69
  70 #undef BUFSIZE
  71 #define BUFSIZE 1024*8
  72
  73 #undef PROG
  74 #define PROG    dgst_main
  75
  76 #ifndef NOPROTO
  77 void do_fp(unsigned char *buf,BIO *f,int sep);
  78 #else
  79 void do_fp();
  80 #endif
  81
  82 int MAIN(argc,argv)
  83 int argc;
  84 char **argv;
  85         {
  86         unsigned char *buf=NULL;
  87         int i,err=0;
  88         EVP_MD *md=NULL,*m;
  89         BIO *in=NULL,*inp;
  90         BIO *bmd=NULL;
  91         char *name;
  92 #define PROG_NAME_SIZE  16
  93         char pname[PROG_NAME_SIZE];
  94         int separator=0;
  95         int debug=0;
  96
  97         apps_startup();
  98
  99         if ((buf=(unsigned char *)Malloc(BUFSIZE)) == NULL)
 100                 {
 101                 BIO_printf(bio_err,"out of memory\n");
 102                 goto end;
 103                 }
 104         if (bio_err == NULL)
 105                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 106                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE);
 107
 108         /* first check the program name */
 109         program_name(argv[0],pname,PROG_NAME_SIZE);
 110
 111         md=EVP_get_digestbyname(pname);
 112
 113         argc--;
 114         argv++;
 115         for (i=0; i<argc; i++)
 116                 {
 117                 if ((*argv)[0] != '-') break;
 118                 if (strcmp(*argv,"-c") == 0)
 119                         separator=1;
 120                 else if (strcmp(*argv,"-d") == 0)
 121                         debug=1;
 122                 else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 123                         md=m;
 124                 else
 125                         break;
 126                 argc--;
 127                 argv++;
 128                 }
 129
 130         if (md == NULL)
 131                 md=EVP_md5();
 132
 133         if ((argc > 0) && (argv[0][0] == '-')) /* bad option */
 134                 {
 135                 BIO_printf(bio_err,"unknown option '%s'\n",*argv);
 136                 BIO_printf(bio_err,"options are\n");
 137                 BIO_printf(bio_err,"-c   to output the digest with separating colons\n");
 138                 BIO_printf(bio_err,"-c   to output debug info\n");
 139                 BIO_printf(bio_err,"-%3s to use the %s message digest alogorithm (default)\n",
 140                         LN_md5,LN_md5);
 141                 BIO_printf(bio_err,"-%3s to use the %s message digest alogorithm\n",
 142                         LN_md2,LN_md2);
 143                 BIO_printf(bio_err,"-%3s to use the %s message digest alogorithm\n",
 144                         LN_sha1,LN_sha1);
 145                 BIO_printf(bio_err,"-%3s to use the %s message digest alogorithm\n",
 146                         LN_sha,LN_sha);
 147                 BIO_printf(bio_err,"-%3s to use the %s message digest alogorithm\n",
 148                         LN_mdc2,LN_mdc2);
 149                 err=1;
 150                 goto end;
 151                 }
 152
 153         in=BIO_new(BIO_s_file());
 154         bmd=BIO_new(BIO_f_md());
 155         if (debug)
 156                 {
 157                 BIO_set_callback(in,BIO_debug_callback);
 158                 /* needed for windows 3.1 */
 159                 BIO_set_callback_arg(in,bio_err);
 160                 }
 161
 162         if ((in == NULL) || (bmd == NULL))
 163                 {
 164                 ERR_print_errors(bio_err);
 165                 goto end;
 166                 }
 167
 168         /* we use md as a filter, reading from 'in' */
 169         BIO_set_md(bmd,md);
 170         inp=BIO_push(bmd,in);
 171
 172         if (argc == 0)
 173                 {
 174                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
 175                 do_fp(buf,inp,separator);
 176                 }
 177         else
 178                 {
 179                 name=OBJ_nid2sn(md->type);
 180                 for (i=0; i<argc; i++)
 181                         {
 182                         if (BIO_read_filename(in,argv[i]) <= 0)
 183                                 {
 184                                 perror(argv[i]);
 185                                 err++;
 186                                 continue;
 187                                 }
 188                         printf("%s(%s)= ",name,argv[i]);
 189                         do_fp(buf,inp,separator);
 190                         BIO_reset(bmd);
 191                         }
 192                 }
 193 end:
 194         if (buf != NULL)
 195                 {
 196                 memset(buf,0,BUFSIZE);
 197                 Free(buf);
 198                 }
 199         if (in != NULL) BIO_free(in);
 200         if (bmd != NULL) BIO_free(bmd);
 201         EXIT(err);
 202         }
 203
 204 void do_fp(buf,bp,sep)
 205 unsigned char *buf;
 206 BIO *bp;
 207 int sep;
 208         {
 209         int len;
 210         int i;
 211
 212         for (;;)
 213                 {
 214                 i=BIO_read(bp,(char *)buf,BUFSIZE);
 215                 if (i <= 0) break;
 216                 }
 217         len=BIO_gets(bp,(char *)buf,BUFSIZE);
 218
 219         for (i=0; i<len; i++)
 220                 {
 221                 if (sep && (i != 0))
 222                         putc(':',stdout);
 223                 printf("%02x",buf[i]);
 224                 }
 225         printf("\n");
 226         }
 227