Line data    Source code

       1             : /* crypto/asn1/t_pkey.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 "cryptlib.h"
      61             : #include <openssl/objects.h>
      62             : #include <openssl/buffer.h>
      63             : #include <openssl/bn.h>
      64             : 
      65           0 : int ASN1_bn_print(BIO *bp, const char *number, const BIGNUM *num,
      66             :                   unsigned char *buf, int off)
      67             : {
      68             :     int n, i;
      69             :     const char *neg;
      70             : 
      71           0 :     if (num == NULL)
      72             :         return (1);
      73           0 :     neg = (BN_is_negative(num)) ? "-" : "";
      74           0 :     if (!BIO_indent(bp, off, 128))
      75             :         return 0;
      76           0 :     if (BN_is_zero(num)) {
      77           0 :         if (BIO_printf(bp, "%s 0\n", number) <= 0)
      78             :             return 0;
      79           0 :         return 1;
      80             :     }
      81             : 
      82           0 :     if (BN_num_bytes(num) <= BN_BYTES) {
      83           0 :         if (BIO_printf(bp, "%s %s%lu (%s0x%lx)\n", number, neg,
      84           0 :                        (unsigned long)num->d[0], neg,
      85             :                        (unsigned long)num->d[0])
      86             :             <= 0)
      87             :             return (0);
      88             :     } else {
      89           0 :         buf[0] = 0;
      90           0 :         if (BIO_printf(bp, "%s%s", number,
      91           0 :                        (neg[0] == '-') ? " (Negative)" : "") <= 0)
      92             :             return (0);
      93           0 :         n = BN_bn2bin(num, &buf[1]);
      94             : 
      95           0 :         if (buf[1] & 0x80)
      96           0 :             n++;
      97             :         else
      98             :             buf++;
      99             : 
     100           0 :         for (i = 0; i < n; i++) {
     101           0 :             if ((i % 15) == 0) {
     102           0 :                 if (BIO_puts(bp, "\n") <= 0 || !BIO_indent(bp, off + 4, 128))
     103             :                     return 0;
     104             :             }
     105           0 :             if (BIO_printf(bp, "%02x%s", buf[i], ((i + 1) == n) ? "" : ":")
     106             :                 <= 0)
     107             :                 return (0);
     108             :         }
     109           0 :         if (BIO_write(bp, "\n", 1) <= 0)
     110             :             return (0);
     111             :     }
     112             :     return (1);
     113             : }