1/* $Id: sockmisc.h,v 1.5.10.4 2005/10/04 09:54:27 manubsd Exp $ */ 2 3/* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * 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 * 3. Neither the name of the project 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 PROJECT 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 PROJECT 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 32#ifndef _SOCKMISC_H 33#define _SOCKMISC_H 34 35struct netaddr { 36 union { 37 struct sockaddr_storage sa; 38 struct sockaddr_in sin; 39 struct sockaddr_in6 sin6; 40 } sa; 41 unsigned long prefix; 42}; 43 44extern const int niflags; 45 46extern int cmpsaddrwop (const struct sockaddr_storage *, const struct sockaddr_storage *); 47extern int cmpsaddrwop_withprefix(const struct sockaddr_storage *, const struct sockaddr_storage *, int); 48extern int cmpsaddrwild (const struct sockaddr_storage *, const struct sockaddr_storage *); 49extern int cmpsaddrstrict (const struct sockaddr_storage *, const struct sockaddr_storage *); 50extern int cmpsaddrstrict_withprefix(const struct sockaddr_storage *, const struct sockaddr_storage *, int); 51 52#ifdef ENABLE_NATT 53#define CMPSADDR(saddr1, saddr2) cmpsaddrstrict((saddr1), (saddr2)) 54#define CMPSADDR2(saddr1, saddr2) cmpsaddrwild((saddr1), (saddr2)) 55#else 56#define CMPSADDR(saddr1, saddr2) cmpsaddrwop((saddr1), (saddr2)) 57#define CMPSADDR2(saddr1, saddr2) cmpsaddrwop((saddr1), (saddr2)) 58#endif 59 60extern struct sockaddr_storage *getlocaladdr (struct sockaddr *); 61 62extern int recvfromto (int, void *, size_t, int, 63 struct sockaddr_storage *, socklen_t *, struct sockaddr_storage *, unsigned int *); 64extern int sendfromto (int, const void *, size_t, 65 struct sockaddr_storage *, struct sockaddr_storage *, int); 66 67extern int setsockopt_bypass (int, int); 68 69extern struct sockaddr_storage *newsaddr (int); 70extern struct sockaddr_storage *dupsaddr (struct sockaddr_storage *); 71extern char *saddr2str (const struct sockaddr *); 72extern char *saddr2str_with_prefix __P((const struct sockaddr *, int)); 73extern char *saddrwop2str (const struct sockaddr *); 74extern char *saddr2str_fromto (const char *format, 75 const struct sockaddr *saddr, 76 const struct sockaddr *daddr); 77extern struct sockaddr_storage *str2saddr (char *, char *); 78extern void mask_sockaddr (struct sockaddr_storage *, const struct sockaddr_storage *, 79 size_t); 80 81/* struct netaddr functions */ 82extern char *naddrwop2str (const struct netaddr *naddr); 83extern char *naddrwop2str_fromto (const char *format, const struct netaddr *saddr, 84 const struct netaddr *daddr); 85extern int naddr_score(const struct netaddr *naddr, const struct sockaddr_storage *saddr); 86 87/* Some usefull functions for sockaddr port manipulations. */ 88extern u_int16_t extract_port (const struct sockaddr_storage *addr); 89extern u_int16_t *set_port (struct sockaddr_storage *addr, u_int16_t new_port); 90extern u_int16_t *get_port_ptr (struct sockaddr_storage *addr); 91 92#endif /* _SOCKMISC_H */ 93