symbian openc socket 接入点 iap

选择接入点

Once you get the available access points list, the following code shows how to start a new connection using available access points.

void ConnectToAP(char *ifname)
{
	ifreq ifr;
	int sockfd;
 
	// Name of the interface
	strcpy(ifr.ifr_name, ifname);
 
	sockfd = socket(AF_INET,SOCK_DGRAM,IPPROTO_UDP);	
	ioctl(sockfd,SIOCSIFNAME, &ifr);
	ioctl(sockfd, SIOCIFSTART , &ifr);	
 
 
	// recvfrom() and sendto() operations on socket sockfd
 
	ioctl(sockfd, SIOCIFSTOP, &ifr);
 
	close(sockfd);
	return ret;
}

获取接入点列表

void ReadAPTable()
{
	struct ifconf ifc;
	int sockfd;
 
	sockfd = socket(AF_INET,SOCK_DGRAM,IPPROTO_UDP);
 
	ifc.ifc_len = sizeof(ifreq) * 20;
	ifc.ifc_buf = (caddr_t)malloc( ifc.ifc_len );
 
 	// This will get the whole access points list
        // Here, ifc.ifc_len will contain the number of access points
	ret = ioctl(sockfd, SIOCGIFCONF, &ifc);
 
	// This will get only the active connection list 
        // Here, ifc.ifc_len will contain the number of active connections
	ret = ioctl(sockfd, SIOCGIFACTIVECONF, &ifc); 
 
	close(sockfd);
	free(ifc.ifc_buf);
	return;
}