int mdg_demo_start(void)
{
int s;
if ((s = mdg_init(0)) != 0) {
fprintf(stderr, "mdg_init failed with %d\n", s);
return -1;
}
mdg_chat_init();
while (1) {
if (io_port == -1) {
if (read_from_sock(STDIN_FILENO) == 1) {
exit(0);
}
} else {
fprintf(stderr, "Listening for connection on port %d\n", io_port);
if (wait_for_connection(io_port, &io_socket) == 0) {
fprintf(stderr, "Reading input from socket...\n");
read_from_sock(io_socket);
}
fprintf(stderr, "Socket closed.\n");
close(io_socket);
}
}
}
static int listen_to(selene_conf_t *conf, const char *host, int port,
FILE *fp) {
fd_set readers;
int rv = 0;
server_t server;
char buf[8096];
char port_str[16];
char *p = NULL;
struct addrinfo hints, *res, *res0;
selene_error_t *err = NULL;
char ip_buf[INET6_ADDRSTRLEN];
char *ip_str = NULL;
memset(&server, 0, sizeof(server));
snprintf(port_str, sizeof(port_str), "%i", port);
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE | AI_NUMERICSERV;
rv = getaddrinfo(host, port_str, &hints, &res0);
if (rv != 0) {
fprintf(stderr, "TCP getaddrinfo(%s:%d) failed: (%d) %s\n", host, port, rv,
gai_strerror(rv));
exit(EXIT_FAILURE);
}
server.sock = -1;
for (res = res0; res; res = res->ai_next) {
server.listen_sock =
socket(res->ai_family, res->ai_socktype, res->ai_protocol);
if (server.listen_sock < 0) {
continue;
}
ip_str = addr2str(res->ai_addr, &ip_buf[0], sizeof(ip_buf));
fprintf(stderr, "TCP bind(%s:%d)\n", ip_str, port);
rv = bind(server.listen_sock, res->ai_addr, res->ai_addrlen);
if (rv != 0) {
close(server.listen_sock);
server.listen_sock = -1;
continue;
}
rv = listen(server.listen_sock, 10);
if (rv != 0) {
close(server.listen_sock);
server.listen_sock = -1;
continue;
}
break;
}
freeaddrinfo(res0);
if (server.listen_sock == -1) {
fprintf(stderr, "TCP bind(%s:%d) failed\n", host, port);
exit(EXIT_FAILURE);
}
server.sock = -1;
while (server.write_err == 0) {
FD_ZERO(&readers);
FD_SET(server.listen_sock, &readers);
if (server.sock != -1) {
FD_SET(server.sock, &readers);
}
FD_SET(fileno(fp), &readers);
rv = select(FD_SETSIZE, &readers, NULL, NULL, NULL);
if (rv > 0) {
if (FD_ISSET(fileno(fp), &readers)) {
p = fgets(buf, sizeof(buf), fp);
if (p == NULL) {
break;
}
if (server.sock != -1) {
SERR(selene_io_in_clear_bytes(server.s, p, strlen(p)));
}
} else if (FD_ISSET(server.listen_sock, &readers)) {
/* TODO: multiple client support */
if (server.sock == -1) {
server.sock = accept(server.listen_sock, NULL, 0);
err = selene_server_create(conf, &server.s);
if (err != SELENE_SUCCESS) {
fprintf(stderr,
"Failed to create client instance: (%d) %s [%s:%d]\n",
err->err, err->msg, err->file, err->line);
exit(EXIT_FAILURE);
}
selene_subscribe(server.s, SELENE_EVENT_LOG_MSG, have_logline, NULL);
SERR(selene_subscribe(server.s, SELENE_EVENT_IO_OUT_ENC, want_pull,
&server));
SERR(selene_subscribe(server.s, SELENE_EVENT_IO_OUT_CLEAR,
have_cleartext, &server));
SERR(selene_start(server.s));
}
} else if (server.sock != -1 && FD_ISSET(server.sock, &readers)) {
read_from_sock(&server);
}
}
}
if (server.write_err != 0) {
/* TODO: client ip */
fprintf(stderr, "TCP write from %s:%d failed: (%d) %s\n", host, port,
server.write_err, strerror(server.write_err));
exit(EXIT_FAILURE);
}
if (server.read_err != 0) {
/* TODO: just disconnect client, keep listening */
fprintf(stderr, "TCP read on %s:%d failed: (%d) %s\n", host, port,
server.read_err, strerror(server.read_err));
exit(EXIT_FAILURE);
}
if (server.s) {
selene_destroy(server.s);
server.s = NULL;
}
return 0;
}