/* * FILE:    net_udp.h * AUTHORS: Colin Perkins *  * Copyright (c) 1998-2000 University College London * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, is 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. * 3. All advertising materials mentioning features or use of this software *    must display the following acknowledgement: *      This product includes software developed by the Computer Science *      Department at University College London * 4. Neither the name of the University nor of the Department may be used *    to endorse or promote products derived from this software without *    specific prior written permission. * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESSED 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 AUTHORS 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. */#ifndef _NET_UDP#define _NET_UDP#include "rtp.h"#if defined(__cplusplus)extern "C" {#endif  typedef struct udp_set_ udp_set;  udp_set *udp_init_for_session(void);  void udp_close_session(udp_set *s);int         udp_addr_valid(const char *addr);socket_udp *udp_init(const char *addr, uint16_t rx_port, uint16_t tx_port, int ttl);socket_udp *udp_init_if(const char *addr, const char *iface, uint16_t rx_port, uint16_t tx_port, int ttl);socket_udp *udp_init_for_receive(const char *iface, uint16_t rx_port, int is_ipv4);void        udp_exit(socket_udp *s);int         udp_send(socket_udp *s, const uint8_t *buffer, uint32_t buflen);int         udp_sendto(socket_udp *s, const uint8_t *buffer, uint32_t buflen,  const struct sockaddr *to, const socklen_t tolen);#ifndef _WIN32int udp_send_iov(socket_udp *s, struct iovec *iov, int count);int udp_sendto_iov(socket_udp *s, struct iovec *iov, int count,		   const struct sockaddr *to, const socklen_t tolen);#endifuint32_t         udp_recv(socket_udp *s, uint8_t *buffer, uint32_t buflen);uint32_t  udp_recv_with_source(socket_udp *s, uint8_t *buffer, uint32_t buflen, 			       struct sockaddr *source, socklen_t *source_len);char *udp_host_addr(socket_udp *s);int         udp_fd(socket_udp *s);  int         udp_select(udp_set *session, struct timeval *timeout);  void        udp_fd_zero(udp_set *session);  void        udp_fd_set(udp_set *session, socket_udp *s);  int         udp_fd_isset(udp_set *session, socket_udp *s);void  udp_set_multicast_src(const char* src);#if defined(__cplusplus)}#endif#endif