1/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2 * All rights reserved.
3 *
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
7 *
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to.  The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14 *
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 * 1. Redistributions of source code must retain the copyright
26 *    notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 *    notice, this list of conditions and the following disclaimer in the
29 *    documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 *    must display the following acknowledgement:
32 *    "This product includes cryptographic software written by
33 *     Eric Young (eay@cryptsoft.com)"
34 *    The word 'cryptographic' can be left out if the rouines from the library
35 *    being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 *    the apps directory (application code) you must include an acknowledgement:
38 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 *
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed.  i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.] */
56
57#include <openssl/asn1.h>
58
59#include <openssl/bio.h>
60#include <openssl/mem.h>
61
62
63int ASN1_bn_print(BIO *bp, const char *number, const BIGNUM *num,
64			unsigned char *buf, int off)
65	{
66	int n,i;
67	const char *neg;
68
69	if (num == NULL) return(1);
70	neg = (BN_is_negative(num))?"-":"";
71	if(!BIO_indent(bp,off,128))
72		return 0;
73	if (BN_is_zero(num))
74		{
75		if (BIO_printf(bp, "%s 0\n", number) <= 0)
76			return 0;
77		return 1;
78		}
79
80	if (BN_num_bytes(num) <= sizeof(long))
81		{
82		if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
83			(unsigned long)num->d[0],neg,(unsigned long)num->d[0])
84			<= 0) return(0);
85		}
86	else
87		{
88		buf[0]=0;
89		if (BIO_printf(bp,"%s%s",number,
90			(neg[0] == '-')?" (Negative)":"") <= 0)
91			return(0);
92		n=BN_bn2bin(num,&buf[1]);
93
94		if (buf[1] & 0x80)
95			n++;
96		else	buf++;
97
98		for (i=0; i<n; i++)
99			{
100			if ((i%15) == 0)
101				{
102				if(BIO_puts(bp,"\n") <= 0
103				   || !BIO_indent(bp,off+4,128))
104				    return 0;
105				}
106			if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
107				<= 0) return(0);
108			}
109		if (BIO_write(bp,"\n",1) <= 0) return(0);
110		}
111	return(1);
112	}
113