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 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 if (num == NULL) return(1);
72 neg = (BN_is_negative(num))?"-":"";
73 if(!BIO_indent(bp,off,128))
74 return 0;
75 if (BN_is_zero(num))
76 {
77 if (BIO_printf(bp, "%s 0\n", number) <= 0)
78 return 0;
79 return 1;
80 }
81
82 if (BN_num_bytes(num) <= BN_BYTES)
83 {
84 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
85 (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
86 <= 0) return(0);
87 }
88 else
89 {
90 buf[0]=0;
91 if (BIO_printf(bp,"%s%s",number,
92 (neg[0] == '-')?" (Negative)":"") <= 0)
93 return(0);
94 n=BN_bn2bin(num,&buf[1]);
95
96 if (buf[1] & 0x80)
97 n++;
98 else buf++;
99
100 for (i=0; i<n; i++)
101 {
102 if ((i%15) == 0)
103 {
104 if(BIO_puts(bp,"\n") <= 0
105 || !BIO_indent(bp,off+4,128))
106 return 0;
107 }
108 if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
109 <= 0) return(0);
110 }
111 if (BIO_write(bp,"\n",1) <= 0) return(0);
112 }
113 return(1);
114 }