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;
}
In the above code,SIOCSIFNAME API is used to select the access point.
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