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/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:         char *str=NULL;
   87:         char *hkey=NULL,*hiv=NULL;
   88:         int enc=1,printkey=0,i,base64=0;
   89:         int debug=0;
   90:         EVP_CIPHER *cipher=NULL,*c;
   91:         char *inf=NULL,*outf=NULL;
   92:         BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL;
   93: #define PROG_NAME_SIZE  39
   94: 
   95: 
   96:         apps_startup();
   97: 
   98:         if (bio_err == NULL)
   99:                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
  100:                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE);
  101: 
  102:         base64=1;
  103: 
  104:         argc--;
  105:         argv++;
  106:         while (argc >= 1)
  107:                 {
  108:                 if    (strcmp(*argv,"-e") == 0)
  109:                         enc=1;
  110:                 if (strcmp(*argv,"-in") == 0)
  111:                         {
  112:                         if (--argc < 1) goto bad;
  113:                         inf= *(++argv);
  114:                         }
  115:                 else if (strcmp(*argv,"-out") == 0)
  116:                         {
  117:                         if (--argc < 1) goto bad;
  118:                         outf= *(++argv);
  119:                         }
  120:                 else if       (strcmp(*argv,"-d") == 0)
  121:                         enc=0;
  122:                 else if       (strcmp(*argv,"-v") == 0)
  123:                         verbose=1;
  124:                 else if       (strcmp(*argv,"-debug") == 0)
  125:                         debug=1;
  126:                 else if (strcmp(*argv,"-bufsize") == 0)
  127:                         {
  128:                         if (--argc < 1) goto bad;
  129:                         bufsize=(unsigned char *)*(++argv);
  130:                         }
  131:                 else
  132:                         {
  133:                         BIO_printf(bio_err,"unknown option '%s'\n",*argv);
  134: bad:
  135:                         BIO_printf(bio_err,"options are\n");
  136:                         BIO_printf(bio_err,"%-14s input file\n","-in <file>");
  137:                         BIO_printf(bio_err,"%-14s output file\n","-out <file>");
  138:                         BIO_printf(bio_err,"%-14s encode\n","-e");
  139:                         BIO_printf(bio_err,"%-14s decode\n","-d");
  140:                         BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>");
  141: 
  142:                         goto end;
  143:                         }
  144:                 argc--;
  145:                 argv++;
  146:                 }
  147: 
  148:         if (bufsize != NULL)
  149:                 {
  150:                 int i;
  151:                 unsigned long n;
  152: 
  153:                 for (n=0; *bufsize; bufsize++)
  154:                         {
  155:                         i= *bufsize;
  156:                         if ((i <= '9') && (i >= '0'))
  157:                                 n=n*10+i-'0';
  158:                         else if (i == 'k')
  159:                                 {
  160:                                 n*=1024;
  161:                                 bufsize++;
  162:                                 break;
  163:                                 }
  164:                         }
  165:                 if (*bufsize != '\0')
  166:                         {
  167:                         BIO_printf(bio_err,"invalid 'bufsize' specified.\n");
  168:                         goto end;
  169:                         }
  170: 
  171:                 /* It must be large enough for a base64 encoded line */
  172:                 if (n < 80) n=80;
  173: 
  174:                 bsize=(int)n;
  175:                 if (verbose) BIO_printf(bio_err,"bufsize=%d\n",bsize);
  176:                 }
  177: 
  178:         strbuf=OPENSSL_malloc(SIZE);
  179:         buff=(unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize));
  180:         if ((buff == NULL) || (strbuf == NULL))
  181:                 {
  182:                 BIO_printf(bio_err,"OPENSSL_malloc failure\n");
  183:                 goto end;
  184:                 }
  185: 
  186:         in=BIO_new(BIO_s_file());
  187:         out=BIO_new(BIO_s_file());
  188:         if ((in == NULL) || (out == NULL))
  189:                 {
  190:                 ERR_print_errors(bio_err);
  191:                 goto end;
  192:                 }
  193:         if (debug)
  194:                 {
  195:                 BIO_set_callback(in,BIO_debug_callback);
  196:                 BIO_set_callback(out,BIO_debug_callback);
  197:                 BIO_set_callback_arg(in,bio_err);
  198:                 BIO_set_callback_arg(out,bio_err);
  199:                 }
  200: 
  201:         if (inf == NULL)
  202:                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
  203:         else
  204:                 {
  205:                 if (BIO_read_filename(in,inf) <= 0)
  206:                         {
  207:                         perror(inf);
  208:                         goto end;
  209:                         }
  210:                 }
  211: 
  212:         if (outf == NULL)
  213:                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
  214:         else
  215:                 {
  216:                 if (BIO_write_filename(out,outf) <= 0)
  217:                         {
  218:                         perror(outf);
  219:                         goto end;
  220:                         }
  221:                 }
  222: 
  223:         rbio=in;
  224:         wbio=out;
  225: 
  226:         if (base64)
  227:                 {
  228:                 if ((b64=BIO_new(BIO_f_base64())) == NULL)
  229:                         goto end;
  230:                 if (debug)
  231:                         {
  232:                         BIO_set_callback(b64,BIO_debug_callback);
  233:                         BIO_set_callback_arg(b64,bio_err);
  234:                         }
  235:                 if (enc)
  236:                         wbio=BIO_push(b64,wbio);
  237:                 else
  238:                         rbio=BIO_push(b64,rbio);
  239:                 }
  240: 
  241:         for (;;)
  242:                 {
  243:                 inl=BIO_read(rbio,(char *)buff,bsize);
  244:                 if (inl <= 0) break;
  245:                 if (BIO_write(wbio,(char *)buff,inl) != inl)
  246:                         {
  247:                         BIO_printf(bio_err,"error writing output file\n");
  248:                         goto end;
  249:                         }
  250:                 }
  251:         BIO_flush(wbio);
  252: 
  253:         ret=0;
  254:         if (verbose)
  255:                 {
  256:                 BIO_printf(bio_err,"bytes read   :%8ld\n",BIO_number_read(in));
  257:                 BIO_printf(bio_err,"bytes written:%8ld\n",BIO_number_written(out));
  258:                 }
  259: end:
  260:         if (strbuf != NULL) OPENSSL_free(strbuf);
  261:         if (buff != NULL) OPENSSL_free(buff);
  262:         if (in != NULL) BIO_free(in);
  263:         if (out != NULL) BIO_free(out);
  264:         if (benc != NULL) BIO_free(benc);
  265:         if (b64 != NULL) BIO_free(b64);
  266:         EXIT(ret);
  267:         }
  268: