codice:
struct sockaddr_in server;
int sockfd; port;
char *dst_host;
host = gethostbyname(dst_host);
if(dst_host == NULL) {
printf("Cannot resolve hostname\n");
exit(1);
}
server_addr.sin_family = AF_INET;
server_addr.sin_addr.s_addr = inet_addr(host);
addr.sin_port = port;
if((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
perror ("socket");
exit (1);
}
if(connect(sockfd,(struct sockaddr*) &server, sizeof(server)) == -1) {
perrorr("connect");
exit(1);
}
manca appunto il descrittore del socket:
sockfd = socket(AF_INET, SOCK_STREAM, 0)