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#include?“platform_head.h“
#include?“uhttp.h“
#include?“udp.h“


#define?UDP_BUFLEN		512

//#define?UDP_BROADCAST_IP??	“239.255.255.250“
#define?UDP_BROADCAST_IP??	“255.255.255.255“
#define?UDP_BROADCAST_PORT??1900
#define?UDP_BROADCAST_HTTP_HEADER??“NOTIFY?*?HTTP/1.1\r\nBroadcast:?%s:%d\r\n“


void?udp_broadcast_ip（void?*param）;


int?udp_open（UDP_MULTICAST_st?*udp）
{
	struct?sockaddr_in?local_addr;
	int?sockfd;
	unsigned?int?socklen;

	DEBUG_Print（“[%s][%d]?:?ip[%s]?port[%d]?mode[%d].\n“?\
		UTI_TRACE?udp->ip?udp->port?udp->broadcast_mode）;
	
	/*?創建?socket?用于UDP通訊?*/
	sockfd?=?socket（AF_INET?SOCK_DGRAM?0）;
	if?（sockfd?	{
		DEBUG_Print（“[%s][%d]?:?socket?creating?error?.\n“?UTI_TRACE）;
		exit（1）;
	}
	
	socklen?=?sizeof（struct?sockaddr_in）;
	memset（&udp->addr?0?socklen）;
	udp->addr.sin_family?=?AF_INET;
	/*?設置對方的端口和IP信息?*/
	if（udp->port?==?0）
		udp->port?=?9000;
	udp->addr.sin_port?=?htons（udp->port）;
	/*?設置組播或單播地址?*/
	if?（inet_pton（AF_INET?udp->ip?&udp->addr.sin_addr）?<=?0）
	{
		DEBUG_Print（“[%s][%d]?:?Multicast?ip?address?convert?error.\n“?UTI_TRACE）;
		return?-2;
	}
	
	memset（&local_addr?0?socklen）;
	/*?設置自己的端口和IP信息?*/
	local_addr.sin_family?=?AF_INET;
	/*?設置為0，表示讓系統自動分配空閑端口?*/
	local_addr.sin_port?=?0;
	memset（udp->local_ip?0?sizeof（udp->local_ip））;
	NETWORK_GetIPAddr（NETWORK_INTERFACE_NAME?udp->local_ip）;
	local_addr.sin_addr.s_addr?=?inet_addr（udp->local_ip）;
	if（local_addr.sin_addr.s_addr?==?INADDR_NONE）
	{
		local_addr.sin_addr.s_addr?=?INADDR_ANY;
		DEBUG_Print（“[%s][%d]?:?Local?ip?convert?error?use?INADDR_ANY.\n“?UTI_TRACE）;
	}

	/*?綁定自己的端口和IP信息到socket上?*/
	if?（bind（sockfd?（struct?sockaddr?*）&local_addrsizeof（struct?sockaddr_in））?==?-1）
	{
		DEBUG_Print（“[%s][%d]?:?Bind?error.\n“?UTI_TRACE）;
		return?-5;
	}
	udp->sock?=?sockfd;
	return?sockfd;
}

int?udp_open_client（UDP_MULTICAST_st?*udp）
{
	//struct?sockaddr_in?local_addr;
	int?sockfd;
	//struct?ifreq?ifr;
	struct?ip_mreq?multiCast;

	DEBUG_Print（“[%s][%d]?:?ip[%s]?port[%d]?mode[%d].\n“?\
		UTI_TRACE?udp->ip?udp->port?udp->broadcast_mode）;
	
	/*?創建?socket?用于UDP通訊?*/
	sockfd?=?socket（AF_INET?SOCK_DGRAM?IPPROTO_UDP）;
	if?（sockfd?	{
		DEBUG_Print（“[%s][%d]?:?socket?creating?error?.\n“?UTI_TRACE）;
		exit（1）;
	}


	memset（&udp->addr?0?sizeof（udp->addr））;
	udp->addr.sin_family?=?AF_INET;
	udp->addr.sin_port?=?htons（udp->port）;
	udp->addr.sin_addr.s_addr?=?inet_addr（udp->ip）;//inet_addr（udp->ip）?INADDR_ANY

	/*?綁定自己的端口和IP信息到socket上?*/
	if?（bind（sockfd?（struct?sockaddr?*）&udp->addrsizeof（struct?sockaddr_in））?==?-1）