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031e5cce SM |
1 | /* crypto/asn1/t_pkey.c */ |
2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
3 | * All rights reserved. | |
b2d0e06f | 4 | * |
031e5cce SM |
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.] | |
b2d0e06f | 57 | */ |
b2d0e06f MG |
58 | |
59 | #include <stdio.h> | |
031e5cce | 60 | #include "cryptlib.h" |
b2d0e06f MG |
61 | #include <openssl/objects.h> |
62 | #include <openssl/buffer.h> | |
031e5cce | 63 | #include <openssl/bn.h> |
b2d0e06f | 64 | |
d3819813 | 65 | int ASN1_bn_print(BIO *bp, const char *number, const BIGNUM *num, |
031e5cce | 66 | unsigned char *buf, int off) |
d3819813 | 67 | { |
031e5cce | 68 | int n, i; |
d3819813 MTL |
69 | const char *neg; |
70 | ||
71 | if (num == NULL) | |
031e5cce SM |
72 | return (1); |
73 | neg = (BN_is_negative(num)) ? "-" : ""; | |
74 | if (!BIO_indent(bp, off, 128)) | |
d3819813 MTL |
75 | return 0; |
76 | if (BN_is_zero(num)) { | |
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 | if (BIO_printf(bp, "%s %s%lu (%s0x%lx)\n", number, neg, | |
031e5cce SM |
84 | (unsigned long)num->d[0], neg, |
85 | (unsigned long)num->d[0]) | |
86 | <= 0) | |
87 | return (0); | |
88 | } else { | |
89 | buf[0] = 0; | |
90 | if (BIO_printf(bp, "%s%s", number, | |
91 | (neg[0] == '-') ? " (Negative)" : "") <= 0) | |
92 | return (0); | |
93 | n = BN_bn2bin(num, &buf[1]); | |
f4173af1 | 94 | |
031e5cce SM |
95 | if (buf[1] & 0x80) |
96 | n++; | |
97 | else | |
98 | buf++; | |
7bf7a6d0 | 99 | |
031e5cce SM |
100 | for (i = 0; i < n; i++) { |
101 | if ((i % 15) == 0) { | |
102 | if (BIO_puts(bp, "\n") <= 0 || !BIO_indent(bp, off + 4, 128)) | |
103 | return 0; | |
104 | } | |
105 | if (BIO_printf(bp, "%02x%s", buf[i], ((i + 1) == n) ? "" : ":") | |
106 | <= 0) | |
107 | return (0); | |
108 | } | |
109 | if (BIO_write(bp, "\n", 1) <= 0) | |
110 | return (0); | |
111 | } | |
112 | return (1); | |
d3819813 | 113 | } |