SSDP
协议编程
upnp
设备查找方法
SSDP
协议编程
upnp
设备查找方法
[cpp] view plaincopyint ssdp_discovery()
{
struct
sockaddr_in
addrin
;
struct timeval
rtime
;
int
newsock
;
int
ret
;
char
buf[1024]
;
int
i=0
;
int
yes=1
;
rtime.tv_sec
= 2 ;
rtime.tv_usec = 0 ;
bzero(&addrin,
sizeof(addrin));
addrin.sin_family = AF_INET;
addrin.sin_addr.s_addr = inet_addr(“239.255.255.250”);
//htonl(INADDR_ANY)
addrin.sin_port = htons(1900);
newsock=socket(AF_INET,SOCK_DGRAM,0);
if( newsock < 0) {perror(“1”); return -1;}
setsockopt( newsock, SOL_SOCKET, SO_RCVTIMEO, (const
char *)&rtime, sizeof(struct timeval));
setsockopt( newsock, SOL_SOCKET, SO_REUSEADDR,
&yes, sizeof(int)) ;
ret=bind( newsock, (struct
sockaddr *)&addrin, sizeof(addrin));
if( ret < 0 )
{perror(“2”); return -1;}
while(i<8)
发布者：全栈程序员-站长，转载请注明出处：https://javaforall.net/183183.html原文链接：https://javaforall.net
