1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1995 Andrew McRae. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 struct tuple { 32 struct tuple *next; 33 unsigned char code; 34 unsigned char length; 35 unsigned char *data; 36 }; 37 38 struct tuple_list { 39 struct tuple_list *next; 40 struct tuple *tuples; 41 off_t offs; 42 int flags; 43 }; 44 45 struct tuple_info { 46 const char *name; 47 unsigned char code; 48 unsigned char length; /* 255 means variable length */ 49 }; 50 51 #define tpl32(tp) ((*((tp) + 3) << 24) | \ 52 (*((tp) + 2) << 16) | \ 53 (*((tp) + 1) << 8) | *(tp)) 54 #define tpl24(tp) ((*((tp) + 2) << 16) | \ 55 (*((tp) + 1) << 8) | *(tp)) 56 #define tpl16(tp) ((*((tp) + 1) << 8) | *(tp)) 57 58 void dumpcis(struct tuple_list *); 59 void freecis(struct tuple_list *); 60 struct tuple_list *readcis(int); 61 62 const char *tuple_name(unsigned char); 63 u_int parse_num(int, u_char *, u_char **, int); 64