apps/dgst.c

   1 /* apps/dgst.c */
   2 /* Copyright (C) 1995-1998 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 <openssl/bio.h>
  64 #include <openssl/err.h>
  65 #include <openssl/evp.h>
  66 #include <openssl/objects.h>
  67 #include <openssl/x509.h>
  68 #include <openssl/pem.h>
  69
  70 #undef BUFSIZE
  71 #define BUFSIZE 1024*8
  72
  73 #undef PROG
  74 #define PROG    dgst_main
  75
  76 void do_fp(unsigned char *buf,BIO *f,int sep);
  77 int MAIN(int argc, char **argv)
  78         {
  79         unsigned char *buf=NULL;
  80         int i,err=0;
  81         const EVP_MD *md=NULL,*m;
  82         BIO *in=NULL,*inp;
  83         BIO *bmd=NULL;
  84         const char *name;
  85 #define PROG_NAME_SIZE  16
  86         char pname[PROG_NAME_SIZE];
  87         int separator=0;
  88         int debug=0;
  89
  90         apps_startup();
  91
  92         if ((buf=(unsigned char *)Malloc(BUFSIZE)) == NULL)
  93                 {
  94                 BIO_printf(bio_err,"out of memory\n");
  95                 goto end;
  96                 }
  97         if (bio_err == NULL)
  98                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
  99                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 100
 101         /* first check the program name */
 102         program_name(argv[0],pname,PROG_NAME_SIZE);
 103
 104         md=EVP_get_digestbyname(pname);
 105
 106         argc--;
 107         argv++;
 108         for (i=0; i<argc; i++)
 109                 {
 110                 if ((*argv)[0] != '-') break;
 111                 if (strcmp(*argv,"-c") == 0)
 112                         separator=1;
 113                 else if (strcmp(*argv,"-d") == 0)
 114                         debug=1;
 115                 else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 116                         md=m;
 117                 else
 118                         break;
 119                 argc--;
 120                 argv++;
 121                 }
 122
 123         if (md == NULL)
 124                 md=EVP_md5();
 125
 126         if ((argc > 0) && (argv[0][0] == '-')) /* bad option */
 127                 {
 128                 BIO_printf(bio_err,"unknown option '%s'\n",*argv);
 129                 BIO_printf(bio_err,"options are\n");
 130                 BIO_printf(bio_err,"-c   to output the digest with separating colons\n");
 131                 BIO_printf(bio_err,"-d   to output debug info\n");
 132                 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm (default)\n",
 133                         LN_md5,LN_md5);
 134                 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
 135                         LN_md2,LN_md2);
 136                 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
 137                         LN_sha1,LN_sha1);
 138                 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
 139                         LN_sha,LN_sha);
 140                 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
 141                         LN_mdc2,LN_mdc2);
 142                 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
 143                         LN_ripemd160,LN_ripemd160);
 144                 err=1;
 145                 goto end;
 146                 }
 147
 148         in=BIO_new(BIO_s_file());
 149         bmd=BIO_new(BIO_f_md());
 150         if (debug)
 151                 {
 152                 BIO_set_callback(in,BIO_debug_callback);
 153                 /* needed for windows 3.1 */
 154                 BIO_set_callback_arg(in,bio_err);
 155                 }
 156
 157         if ((in == NULL) || (bmd == NULL))
 158                 {
 159                 ERR_print_errors(bio_err);
 160                 goto end;
 161                 }
 162
 163         /* we use md as a filter, reading from 'in' */
 164         BIO_set_md(bmd,md);
 165         inp=BIO_push(bmd,in);
 166
 167         if (argc == 0)
 168                 {
 169                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
 170                 do_fp(buf,inp,separator);
 171                 }
 172         else
 173                 {
 174                 name=OBJ_nid2sn(md->type);
 175                 for (i=0; i<argc; i++)
 176                         {
 177                         if (BIO_read_filename(in,argv[i]) <= 0)
 178                                 {
 179                                 perror(argv[i]);
 180                                 err++;
 181                                 continue;
 182                                 }
 183                         printf("%s(%s)= ",name,argv[i]);
 184                         do_fp(buf,inp,separator);
 185                         BIO_reset(bmd);
 186                         }
 187                 }
 188 end:
 189         if (buf != NULL)
 190                 {
 191                 memset(buf,0,BUFSIZE);
 192                 Free(buf);
 193                 }
 194         if (in != NULL) BIO_free(in);
 195         if (bmd != NULL) BIO_free(bmd);
 196         EXIT(err);
 197         }
 198
 199 void do_fp(unsigned char *buf, BIO *bp, int sep)
 200         {
 201         int len;
 202         int i;
 203
 204         for (;;)
 205                 {
 206                 i=BIO_read(bp,(char *)buf,BUFSIZE);
 207                 if (i <= 0) break;
 208                 }
 209         len=BIO_gets(bp,(char *)buf,BUFSIZE);
 210
 211         for (i=0; i<len; i++)
 212                 {
 213                 if (sep && (i != 0))
 214                         putc(':',stdout);
 215                 printf("%02x",buf[i]);
 216                 }
 217         printf("\n");
 218         }
 219