Adam Langley | 95c29f3 | 2014-06-20 12:00:00 -0700 | [diff] [blame] | 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 | |
David Benjamin | da53b59 | 2016-08-16 01:49:18 -0400 | [diff] [blame] | 59 | #include <openssl/bio.h> |
Adam Langley | 95c29f3 | 2014-06-20 12:00:00 -0700 | [diff] [blame] | 60 | |
Adam Langley | 95c29f3 | 2014-06-20 12:00:00 -0700 | [diff] [blame] | 61 | int i2a_ASN1_INTEGER(BIO *bp, ASN1_INTEGER *a) |
Adam Langley | 57707c7 | 2016-01-14 11:25:12 -0800 | [diff] [blame] | 62 | { |
| 63 | int i, n = 0; |
| 64 | static const char *h = "0123456789ABCDEF"; |
| 65 | char buf[2]; |
Adam Langley | 95c29f3 | 2014-06-20 12:00:00 -0700 | [diff] [blame] | 66 | |
Adam Langley | 57707c7 | 2016-01-14 11:25:12 -0800 | [diff] [blame] | 67 | if (a == NULL) |
| 68 | return (0); |
Adam Langley | 95c29f3 | 2014-06-20 12:00:00 -0700 | [diff] [blame] | 69 | |
Adam Langley | 57707c7 | 2016-01-14 11:25:12 -0800 | [diff] [blame] | 70 | if (a->type & V_ASN1_NEG) { |
| 71 | if (BIO_write(bp, "-", 1) != 1) |
| 72 | goto err; |
| 73 | n = 1; |
| 74 | } |
Adam Langley | 95c29f3 | 2014-06-20 12:00:00 -0700 | [diff] [blame] | 75 | |
Adam Langley | 57707c7 | 2016-01-14 11:25:12 -0800 | [diff] [blame] | 76 | if (a->length == 0) { |
| 77 | if (BIO_write(bp, "00", 2) != 2) |
| 78 | goto err; |
| 79 | n += 2; |
| 80 | } else { |
| 81 | for (i = 0; i < a->length; i++) { |
| 82 | if ((i != 0) && (i % 35 == 0)) { |
| 83 | if (BIO_write(bp, "\\\n", 2) != 2) |
| 84 | goto err; |
| 85 | n += 2; |
| 86 | } |
| 87 | buf[0] = h[((unsigned char)a->data[i] >> 4) & 0x0f]; |
| 88 | buf[1] = h[((unsigned char)a->data[i]) & 0x0f]; |
| 89 | if (BIO_write(bp, buf, 2) != 2) |
| 90 | goto err; |
| 91 | n += 2; |
| 92 | } |
| 93 | } |
| 94 | return (n); |
| 95 | err: |
| 96 | return (-1); |
| 97 | } |