| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* |
| 2 | * ++Copyright++ 1985, 1988, 1993 |
| 3 | * - |
| 4 | * Copyright (c) 1985, 1988, 1993 |
| 5 | * The Regents of the University of California. All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * 4. Neither the name of the University nor the names of its contributors |
| 16 | * may be used to endorse or promote products derived from this software |
| 17 | * without specific prior written permission. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | * - |
| 31 | * Portions Copyright (c) 1993 by Digital Equipment Corporation. |
| 32 | * |
| 33 | * Permission to use, copy, modify, and distribute this software for any |
| 34 | * purpose with or without fee is hereby granted, provided that the above |
| 35 | * copyright notice and this permission notice appear in all copies, and that |
| 36 | * the name of Digital Equipment Corporation not be used in advertising or |
| 37 | * publicity pertaining to distribution of the document or software without |
| 38 | * specific, written prior permission. |
| 39 | * |
| 40 | * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL |
| 41 | * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES |
| 42 | * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT |
| 43 | * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| 44 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 45 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS |
| 46 | * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
| 47 | * SOFTWARE. |
| 48 | * - |
| 49 | * --Copyright-- |
| 50 | */ |
| 51 | |
| 52 | #include <string.h> |
| 53 | #include <arpa/nameser.h> |
| 54 | |
| 55 | static void |
| 56 | map_v4v6_address (const char *src, char *dst) |
| 57 | { |
| 58 | u_char *p = (u_char *) dst; |
| 59 | int i; |
| 60 | |
| 61 | /* Move the IPv4 part to the right position. */ |
| 62 | memcpy (dst + 12, src, INADDRSZ); |
| 63 | |
| 64 | /* Mark this ipv6 addr as a mapped ipv4. */ |
| 65 | for (i = 0; i < 10; i++) |
| 66 | *p++ = 0x00; |
| 67 | *p++ = 0xff; |
| 68 | *p = 0xff; |
| 69 | } |