int tcp_connect(char *host, uint16_t port)
{
struct sockaddr_in serv_addr;
struct hostent *server;
/* Create the socket */
int s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (s == -1)
{
nbdie("tcp: couldn't create socket");
}
else
{
/* Look up the host */
server = gethostbyname(host);
if(!server)
{
s = -1;
fprintf(stderr, "Couldn't find host %s\n", host);
}
else
{
/* Set up the server address */
memset(&serv_addr, '\0', sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(port);
memcpy(&serv_addr.sin_addr, server->h_addr_list[0], server->h_length);
/* Connect */
if (connect(s, (struct sockaddr*)&serv_addr, sizeof(serv_addr)) < 0)
{
s = -1;
nberror("tcp: couldn't connect to host");
}
}
}
return s;
}
void nbdie(char *str)
{
nberror(str);
exit(EXIT_FAILURE);
}
