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