1 /* $NetBSD: sockmisc.h,v 1.7 2006/09/09 16:22:10 manu Exp $ */ 2 3 /* Id: sockmisc.h,v 1.9 2005/10/05 16:55:41 manubsd Exp */ 4 5 /* 6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the project nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef _SOCKMISC_H 35 #define _SOCKMISC_H 36 37 struct netaddr { 38 union { 39 struct sockaddr sa; 40 struct sockaddr_in sin; 41 struct sockaddr_in6 sin6; 42 } sa; 43 unsigned long prefix; 44 }; 45 46 extern const int niflags; 47 48 extern int cmpsaddrwop __P((const struct sockaddr *, const struct sockaddr *)); 49 extern int cmpsaddrwild __P((const struct sockaddr *, const struct sockaddr *)); 50 extern int cmpsaddrstrict __P((const struct sockaddr *, const struct sockaddr *)); 51 52 #ifdef ENABLE_NATT 53 #define CMPSADDR(saddr1, saddr2) cmpsaddrstrict((saddr1), (saddr2)) 54 #else 55 #define CMPSADDR(saddr1, saddr2) cmpsaddrwop((saddr1), (saddr2)) 56 #endif 57 58 extern struct sockaddr *getlocaladdr __P((struct sockaddr *)); 59 60 extern int recvfromto __P((int, void *, size_t, int, 61 struct sockaddr *, socklen_t *, struct sockaddr *, unsigned int *)); 62 extern int sendfromto __P((int, const void *, size_t, 63 struct sockaddr *, struct sockaddr *, int)); 64 65 extern int setsockopt_bypass __P((int, int)); 66 67 extern struct sockaddr *newsaddr __P((int)); 68 extern struct sockaddr *dupsaddr __P((struct sockaddr *)); 69 extern char *saddr2str __P((const struct sockaddr *)); 70 extern char *saddrwop2str __P((const struct sockaddr *)); 71 extern char *saddr2str_fromto __P((const char *format, 72 const struct sockaddr *saddr, 73 const struct sockaddr *daddr)); 74 extern struct sockaddr *str2saddr __P((char *, char *)); 75 extern void mask_sockaddr __P((struct sockaddr *, const struct sockaddr *, 76 size_t)); 77 78 /* struct netaddr functions */ 79 extern char *naddrwop2str __P((const struct netaddr *naddr)); 80 extern char *naddrwop2str_fromto __P((const char *format, const struct netaddr *saddr, 81 const struct netaddr *daddr)); 82 extern int naddr_score(const struct netaddr *naddr, const struct sockaddr *saddr); 83 84 /* Some usefull functions for sockaddr port manipulations. */ 85 extern u_int16_t extract_port __P((const struct sockaddr *addr)); 86 extern u_int16_t *set_port __P((struct sockaddr *addr, u_int16_t new_port)); 87 extern u_int16_t *get_port_ptr __P((struct sockaddr *addr)); 88 89 #endif /* _SOCKMISC_H */ 90