// given an addr:port string, opens a listening socket on that address.
int create_listener(io_poller *poller, const char *str)
{
io_atom *atom;
socket_addr sock = { { htonl(INADDR_ANY) }, DEFAULT_PORT };
const char *errstr;
int err;
atom = malloc(sizeof(io_atom));
if(!atom) {
perror("malloc");
exit(1);
}
// if a string was supplied, we use it, else we just
// use the defaults that are already stored in sock.
if(str) {
errstr = io_parse_address(str, &sock);
if(errstr) {
fprintf(stderr, errstr, str);
exit(1);
}
}
err = io_listen(poller, atom, accept_proc, sock);
if(err) {
fprintf(stderr, "io_listen on %s:%d failed: %s\n",
inet_ntoa(sock.addr), sock.port, strerror(err));
return -1;
}
printf("Opened listening socket on %s:%d, fd=%d\n",
inet_ntoa(sock.addr), sock.port, atom->fd );
return 0;
}
static struct resource *
make_lshd_port(struct lshd_context *ctx, socklen_t addr_len, struct sockaddr *addr)
{
int fd = io_bind_sockaddr(addr, addr_len);
if (fd < 0)
{
werror("socket failed: %e.\n", errno);
return NULL;
}
else
{
NEW(lshd_port, self);
init_io_listen_port(&self->super, fd, lshd_port_accept);
self->ctx = ctx;
if (!io_listen(&self->super))
{
werror("listen failed: %e.\n", errno);
KILL_RESOURCE(&self->super.super.super);
return NULL;
}
return &self->super.super.super;
}
}