/* * Copyright (c) 2004-2006 Maxim Sobolev <sobomax@FreeBSD.org> * Copyright (c) 2006-2007 Sippy Software, Inc., http://www.sippysoft.com * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $Id: rtpp_util.h,v 1.6 2008/04/01 22:32:03 sobomax Exp $ * */#ifndef _RTPP_UTIL_H_#define _RTPP_UTIL_H_#include <sys/types.h>#include <sys/socket.h>#include <netinet/in.h>#if !defined(__solaris__)#include <err.h>#endif#include <netdb.h>#include "rtpp_defines.h"#define	addr2port(sa)	ntohs(satosin(sa)->sin_port)#define	GET_RTP(sp)	(((sp)->rtp != NULL) ? (sp)->rtp : (sp))#define	NOT(x)		(((x) == 0) ? 1 : 0)/* Function prototypes */int ishostseq(struct sockaddr *, struct sockaddr *);int ishostnull(struct sockaddr *);char *addr2char_r(struct sockaddr *, char *buf, int size);const char *addr2char(struct sockaddr *);double getctime(void);int resolve(struct sockaddr *, int, const char *, const char *, int);void seedrandom(void);int drop_privileges(struct cfg *, char *, char *);/* Stripped down version of sockaddr_in* for saving space */struct sockaddr_in4_s {    sa_family_t sin_family;    in_port_t sin_port;    struct in_addr sin_addr;};struct sockaddr_in6_s {    sa_family_t sin_family;    in_port_t sin_port;    struct in6_addr sin_addr;};union sockaddr_in_s {    struct sockaddr_in4_s in4;    struct sockaddr_in6_s in6;};/* Some handy/compat macros */#if !defined(INFTIM)#define	INFTIM		(-1)#endif#if !defined(AF_LOCAL)#define	AF_LOCAL	AF_UNIX#endif#if !defined(PF_LOCAL)#define	PF_LOCAL	PF_UNIX#endif#if !defined(ACCESSPERMS)#define	ACCESSPERMS	(S_IRWXU|S_IRWXG|S_IRWXO)#endif#if !defined(DEFFILEMODE)#define	DEFFILEMODE	(S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)#endif#if defined(__solaris__)#define err(exitcode, format, args...) \  errx(exitcode, format ": %s", ## args, strerror(errno))#define errx(exitcode, format, args...) \  { warnx(format, ## args); exit(exitcode); }#define warn(format, args...) \  warnx(format ": %s", ## args, strerror(errno))#define warnx(format, args...) \  fprintf(stderr, format "\n", ## args)#endif#if !defined(SA_LEN)#define SA_LEN(sa) \  (((sa)->sa_family == AF_INET) ? \  sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6))#endif#if !defined(SS_LEN)#define SS_LEN(ss) \  (((ss)->ss_family == AF_INET) ? \  sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6))#endif#if !defined(satosin)#define	satosin(sa)	((struct sockaddr_in *)(sa))#endif#if !defined(satosin6)#define	satosin6(sa)	((struct sockaddr_in6 *)(sa))#endif#if !defined(sstosa)#define	sstosa(ss)	((struct sockaddr *)(ss))#endif#endif