demos/b64.c

   1 /* demos/b64.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 <stdlib.h>
  61 #include <string.h>
  62 #include "apps.h"
  63 #include <openssl/buffer.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 SIZE
  71 #undef BSIZE
  72 #undef PROG
  73
  74 #define SIZE    (512)
  75 #define BSIZE   (8*1024)
  76 #define PROG    enc_main
  77
  78 int main(argc,argv)
  79 int argc;
  80 char **argv;
  81         {
  82         char *strbuf=NULL;
  83         unsigned char *buff=NULL,*bufsize=NULL;
  84         int bsize=BSIZE,verbose=0;
  85         int ret=1,inl;
  86         unsigned char key[24],iv[MD5_DIGEST_LENGTH];
  87         char *str=NULL;
  88         char *hkey=NULL,*hiv=NULL;
  89         int enc=1,printkey=0,i,base64=0;
  90         int debug=0;
  91         EVP_CIPHER *cipher=NULL,*c;
  92         char *inf=NULL,*outf=NULL;
  93         BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL;
  94 #define PROG_NAME_SIZE  16
  95         char pname[PROG_NAME_SIZE];
  96
  97
  98         apps_startup();
  99
 100         if (bio_err == NULL)
 101                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 102                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE);
 103
 104         base64=1;
 105
 106         argc--;
 107         argv++;
 108         while (argc >= 1)
 109                 {
 110                 if      (strcmp(*argv,"-e") == 0)
 111                         enc=1;
 112                 if (strcmp(*argv,"-in") == 0)
 113                         {
 114                         if (--argc < 1) goto bad;
 115                         inf= *(++argv);
 116                         }
 117                 else if (strcmp(*argv,"-out") == 0)
 118                         {
 119                         if (--argc < 1) goto bad;
 120                         outf= *(++argv);
 121                         }
 122                 else if (strcmp(*argv,"-d") == 0)
 123                         enc=0;
 124                 else if (strcmp(*argv,"-v") == 0)
 125                         verbose=1;
 126                 else if (strcmp(*argv,"-debug") == 0)
 127                         debug=1;
 128                 else if (strcmp(*argv,"-bufsize") == 0)
 129                         {
 130                         if (--argc < 1) goto bad;
 131                         bufsize=(unsigned char *)*(++argv);
 132                         }
 133                 else
 134                         {
 135                         BIO_printf(bio_err,"unknown option '%s'\n",*argv);
 136 bad:
 137                         BIO_printf(bio_err,"options are\n");
 138                         BIO_printf(bio_err,"%-14s input file\n","-in <file>");
 139                         BIO_printf(bio_err,"%-14s output file\n","-out <file>");
 140                         BIO_printf(bio_err,"%-14s encode\n","-e");
 141                         BIO_printf(bio_err,"%-14s decode\n","-d");
 142                         BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>");
 143
 144                         goto end;
 145                         }
 146                 argc--;
 147                 argv++;
 148                 }
 149
 150         if (bufsize != NULL)
 151                 {
 152                 int i;
 153                 unsigned long n;
 154
 155                 for (n=0; *bufsize; bufsize++)
 156                         {
 157                         i= *bufsize;
 158                         if ((i <= '9') && (i >= '0'))
 159                                 n=n*10+i-'0';
 160                         else if (i == 'k')
 161                                 {
 162                                 n*=1024;
 163                                 bufsize++;
 164                                 break;
 165                                 }
 166                         }
 167                 if (*bufsize != '\0')
 168                         {
 169                         BIO_printf(bio_err,"invalid 'bufsize' specified.\n");
 170                         goto end;
 171                         }
 172
 173                 /* It must be large enough for a base64 encoded line */
 174                 if (n < 80) n=80;
 175
 176                 bsize=(int)n;
 177                 if (verbose) BIO_printf(bio_err,"bufsize=%d\n",bsize);
 178                 }
 179
 180         strbuf=Malloc(SIZE);
 181         buff=(unsigned char *)Malloc(EVP_ENCODE_LENGTH(bsize));
 182         if ((buff == NULL) || (strbuf == NULL))
 183                 {
 184                 BIO_printf(bio_err,"Malloc failure\n");
 185                 goto end;
 186                 }
 187
 188         in=BIO_new(BIO_s_file());
 189         out=BIO_new(BIO_s_file());
 190         if ((in == NULL) || (out == NULL))
 191                 {
 192                 ERR_print_errors(bio_err);
 193                 goto end;
 194                 }
 195         if (debug)
 196                 {
 197                 BIO_set_callback(in,BIO_debug_callback);
 198                 BIO_set_callback(out,BIO_debug_callback);
 199                 BIO_set_callback_arg(in,bio_err);
 200                 BIO_set_callback_arg(out,bio_err);
 201                 }
 202
 203         if (inf == NULL)
 204                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
 205         else
 206                 {
 207                 if (BIO_read_filename(in,inf) <= 0)
 208                         {
 209                         perror(inf);
 210                         goto end;
 211                         }
 212                 }
 213
 214         if (outf == NULL)
 215                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 216         else
 217                 {
 218                 if (BIO_write_filename(out,outf) <= 0)
 219                         {
 220                         perror(outf);
 221                         goto end;
 222                         }
 223                 }
 224
 225         rbio=in;
 226         wbio=out;
 227
 228         if (base64)
 229                 {
 230                 if ((b64=BIO_new(BIO_f_base64())) == NULL)
 231                         goto end;
 232                 if (debug)
 233                         {
 234                         BIO_set_callback(b64,BIO_debug_callback);
 235                         BIO_set_callback_arg(b64,bio_err);
 236                         }
 237                 if (enc)
 238                         wbio=BIO_push(b64,wbio);
 239                 else
 240                         rbio=BIO_push(b64,rbio);
 241                 }
 242
 243         for (;;)
 244                 {
 245                 inl=BIO_read(rbio,(char *)buff,bsize);
 246                 if (inl <= 0) break;
 247                 if (BIO_write(wbio,(char *)buff,inl) != inl)
 248                         {
 249                         BIO_printf(bio_err,"error writing output file\n");
 250                         goto end;
 251                         }
 252                 }
 253         BIO_flush(wbio);
 254
 255         ret=0;
 256         if (verbose)
 257                 {
 258                 BIO_printf(bio_err,"bytes read   :%8ld\n",BIO_number_read(in));
 259                 BIO_printf(bio_err,"bytes written:%8ld\n",BIO_number_written(out));
 260                 }
 261 end:
 262         if (strbuf != NULL) Free(strbuf);
 263         if (buff != NULL) Free(buff);
 264         if (in != NULL) BIO_free(in);
 265         if (out != NULL) BIO_free(out);
 266         if (benc != NULL) BIO_free(benc);
 267         if (b64 != NULL) BIO_free(b64);
 268         EXIT(ret);
 269         }
 270