static void hostapd_cli_action(struct wpa_ctrl *ctrl)
{
fd_set rfds;
int fd, res;
struct timeval tv;
char buf[256];
size_t len;
fd = wpa_ctrl_get_fd(ctrl);
while (!hostapd_cli_quit) {
FD_ZERO(&rfds);
FD_SET(fd, &rfds);
tv.tv_sec = ping_interval;
tv.tv_usec = 0;
res = select(fd + 1, &rfds, NULL, NULL, &tv);
if (res < 0 && errno != EINTR) {
perror("select");
break;
}
if (FD_ISSET(fd, &rfds))
hostapd_cli_recv_pending(ctrl, 0, 1);
else {
len = sizeof(buf) - 1;
if (wpa_ctrl_request(ctrl, "PING", 4, buf, &len,
hostapd_cli_action_process) < 0 ||
len < 4 || os_memcmp(buf, "PONG", 4) != 0) {
printf("hostapd did not reply to PING "
"command - exiting\n");
break;
}
}
}
}
static void hostapd_cli_ping(void *eloop_ctx, void *timeout_ctx)
{
if (ctrl_conn && _wpa_ctrl_command(ctrl_conn, "PING", 0)) {
printf("Connection to hostapd lost - trying to reconnect\n");
hostapd_cli_close_connection();
}
if (!ctrl_conn && hostapd_cli_reconnect(ctrl_ifname) == 0)
printf("Connection to hostapd re-established\n");
if (ctrl_conn)
hostapd_cli_recv_pending(ctrl_conn, 1, 0);
eloop_register_timeout(ping_interval, 0, hostapd_cli_ping, NULL, NULL);
}
static void hostapd_cli_interactive(void)
{
const int max_args = 10;
char cmd[256], *res, *argv[max_args], *pos;
int argc;
printf("\nInteractive mode\n\n");
do {
hostapd_cli_recv_pending(ctrl_conn, 0);
printf("> ");
alarm(1);
res = fgets(cmd, sizeof(cmd), stdin);
alarm(0);
if (res == NULL)
break;
pos = cmd;
while (*pos != '\0') {
if (*pos == '\n') {
*pos = '\0';
break;
}
pos++;
}
argc = 0;
pos = cmd;
for (;;) {
while (*pos == ' ')
pos++;
if (*pos == '\0')
break;
argv[argc] = pos;
argc++;
if (argc == max_args)
break;
while (*pos != '\0' && *pos != ' ')
pos++;
if (*pos == ' ')
*pos++ = '\0';
}
if (argc)
wpa_request(ctrl_conn, argc, argv);
} while (!hostapd_cli_quit);
}
static void hostapd_cli_alarm(int sig)
{
if (ctrl_conn && _hostapd_ctrl_command(ctrl_conn, "PING", 0)) {
printf("Connection to hostapd lost - trying to reconnect\n");
hostapd_cli_close_connection();
}
if (!ctrl_conn) {
ctrl_conn = hostapd_cli_open_connection(ctrl_ifname);
if (ctrl_conn) {
printf("Connection to hostapd re-established\n");
if (hostapd_ctrl_attach(ctrl_conn) == 0) {
hostapd_cli_attached = 1;
} else {
printf("Warning: Failed to attach to "
"hostapd.\n");
}
}
}
if (ctrl_conn)
hostapd_cli_recv_pending(ctrl_conn, 1);
alarm(1);
}
static void hostapd_cli_ping(void *eloop_ctx, void *timeout_ctx)
{
if (ctrl_conn && _wpa_ctrl_command(ctrl_conn, "PING", 0)) {
printf("Connection to hostapd lost - trying to reconnect\n");
hostapd_cli_close_connection();
}
if (!ctrl_conn) {
ctrl_conn = hostapd_cli_open_connection(ctrl_ifname);
if (ctrl_conn) {
printf("Connection to hostapd re-established\n");
if (wpa_ctrl_attach(ctrl_conn) == 0) {
hostapd_cli_attached = 1;
} else {
printf("Warning: Failed to attach to "
"hostapd.\n");
}
}
}
if (ctrl_conn)
hostapd_cli_recv_pending(ctrl_conn, 1, 0);
eloop_register_timeout(ping_interval, 0, hostapd_cli_ping, NULL, NULL);
}
static void hostapd_cli_receive(int sock, void *eloop_ctx, void *sock_ctx)
{
hostapd_cli_recv_pending(ctrl_conn, 0, 0);
}