void
gui_main_loop ()
{
struct t_hook *hook_fd_keyboard;
/* catch SIGWINCH signal: redraw screen */
util_catch_signal (SIGWINCH, &gui_main_signal_sigwinch);
/* hook stdin (read keyboard) */
hook_fd_keyboard = hook_fd (NULL, STDIN_FILENO, 1, 0, 0,
&gui_key_read_cb, NULL);
gui_window_ask_refresh (1);
while (!dogechat_quit)
{
/* execute timer hooks */
hook_timer_exec ();
/* auto reset of color pairs */
if (gui_color_pairs_auto_reset)
{
gui_color_reset_pairs ();
gui_color_pairs_auto_reset_last = time (NULL);
gui_color_pairs_auto_reset = 0;
gui_color_pairs_auto_reset_pending = 1;
}
gui_main_refreshs ();
if (gui_window_refresh_needed && !gui_window_bare_display)
gui_main_refreshs ();
if (gui_signal_sigwinch_received)
{
(void) hook_signal_send ("signal_sigwinch",
DOGECHAT_HOOK_SIGNAL_STRING, NULL);
gui_signal_sigwinch_received = 0;
}
gui_color_pairs_auto_reset_pending = 0;
/* execute fd hooks */
hook_fd_exec ();
}
/* remove keyboard hook */
unhook (hook_fd_keyboard);
}
void
gui_main_loop ()
{
struct t_hook *hook_fd_keyboard;
struct timeval tv_timeout;
fd_set read_fds, write_fds, except_fds;
int max_fd;
int ready;
/* catch SIGTERM signal: quit program */
util_catch_signal (SIGTERM, &gui_main_signal_sigterm);
util_catch_signal (SIGQUIT, &gui_main_signal_sigquit);
/* catch SIGHUP signal: reload configuration */
util_catch_signal (SIGHUP, &gui_main_signal_sighup);
/* catch SIGWINCH signal: redraw screen */
util_catch_signal (SIGWINCH, &gui_main_signal_sigwinch);
/* hook stdin (read keyboard) */
hook_fd_keyboard = hook_fd (NULL, STDIN_FILENO, 1, 0, 0,
&gui_key_read_cb, NULL);
gui_window_ask_refresh (1);
while (!weechat_quit)
{
/* reload config, if SIGHUP received */
if (gui_reload_config)
{
gui_reload_config = 0;
log_printf (_("Signal SIGHUP received, reloading configuration "
"files"));
command_reload (NULL, NULL, 0, NULL, NULL);
}
/* execute hook timers */
hook_timer_exec ();
/* auto reset of color pairs */
if (gui_color_pairs_auto_reset)
{
gui_color_reset_pairs ();
gui_color_pairs_auto_reset_last = time (NULL);
gui_color_pairs_auto_reset = 0;
gui_color_pairs_auto_reset_pending = 1;
}
gui_main_refreshs ();
if (gui_window_refresh_needed && !gui_window_bare_display)
gui_main_refreshs ();
if (gui_signal_sigwinch_received)
{
(void) hook_signal_send ("signal_sigwinch",
WEECHAT_HOOK_SIGNAL_STRING, NULL);
gui_signal_sigwinch_received = 0;
}
gui_color_pairs_auto_reset_pending = 0;
/* wait for keyboard or network activity */
FD_ZERO (&read_fds);
FD_ZERO (&write_fds);
FD_ZERO (&except_fds);
max_fd = hook_fd_set (&read_fds, &write_fds, &except_fds);
hook_timer_time_to_next (&tv_timeout);
ready = select (max_fd + 1, &read_fds, &write_fds, &except_fds,
&tv_timeout);
if (ready > 0)
{
hook_fd_exec (&read_fds, &write_fds, &except_fds);
}
}
/* remove keyboard hook */
unhook (hook_fd_keyboard);
}
void
network_connect_with_fork (struct t_hook *hook_connect)
{
int child_pipe[2];
#ifdef HAVE_GNUTLS
int rc;
const char *pos_error;
#endif
pid_t pid;
#ifdef HAVE_GNUTLS
/* initialize GnuTLS if SSL asked */
if (HOOK_CONNECT(hook_connect, gnutls_sess))
{
if (gnutls_init (HOOK_CONNECT(hook_connect, gnutls_sess), GNUTLS_CLIENT) != GNUTLS_E_SUCCESS)
{
(void) (HOOK_CONNECT(hook_connect, callback))
(hook_connect->callback_data,
WEECHAT_HOOK_CONNECT_GNUTLS_INIT_ERROR,
0, NULL, NULL);
unhook (hook_connect);
return;
}
rc = gnutls_priority_set_direct (*HOOK_CONNECT(hook_connect, gnutls_sess),
HOOK_CONNECT(hook_connect, gnutls_priorities),
&pos_error);
if (rc != GNUTLS_E_SUCCESS)
{
(void) (HOOK_CONNECT(hook_connect, callback))
(hook_connect->callback_data,
WEECHAT_HOOK_CONNECT_GNUTLS_INIT_ERROR,
0, _("invalid priorities"), NULL);
unhook (hook_connect);
return;
}
gnutls_credentials_set (*HOOK_CONNECT(hook_connect, gnutls_sess),
GNUTLS_CRD_CERTIFICATE,
gnutls_xcred);
gnutls_transport_set_ptr (*HOOK_CONNECT(hook_connect, gnutls_sess),
(gnutls_transport_ptr) ((unsigned long) HOOK_CONNECT(hook_connect, sock)));
}
#endif
/* create pipe for child process */
if (pipe (child_pipe) < 0)
{
(void) (HOOK_CONNECT(hook_connect, callback))
(hook_connect->callback_data,
WEECHAT_HOOK_CONNECT_MEMORY_ERROR,
0, NULL, NULL);
unhook (hook_connect);
return;
}
HOOK_CONNECT(hook_connect, child_read) = child_pipe[0];
HOOK_CONNECT(hook_connect, child_write) = child_pipe[1];
switch (pid = fork ())
{
/* fork failed */
case -1:
(void) (HOOK_CONNECT(hook_connect, callback))
(hook_connect->callback_data,
WEECHAT_HOOK_CONNECT_MEMORY_ERROR,
0, NULL, NULL);
unhook (hook_connect);
return;
/* child process */
case 0:
setuid (getuid ());
close (HOOK_CONNECT(hook_connect, child_read));
network_connect_child (hook_connect);
_exit (EXIT_SUCCESS);
}
/* parent process */
HOOK_CONNECT(hook_connect, child_pid) = pid;
close (HOOK_CONNECT(hook_connect, child_write));
HOOK_CONNECT(hook_connect, child_write) = -1;
HOOK_CONNECT(hook_connect, hook_child_timer) = hook_timer (hook_connect->plugin,
CONFIG_INTEGER(config_network_connection_timeout) * 1000,
0, 1,
&network_connect_child_timer_cb,
hook_connect);
HOOK_CONNECT(hook_connect, hook_fd) = hook_fd (hook_connect->plugin,
HOOK_CONNECT(hook_connect, child_read),
1, 0, 0,
&network_connect_child_read_cb,
hook_connect);
}
int
network_connect_child_read_cb (void *arg_hook_connect, int fd)
{
struct t_hook *hook_connect;
char buffer[1], buf_size[6], *cb_error, *cb_ip_address, *error;
int num_read;
long size_msg;
#ifdef HAVE_GNUTLS
int rc, direction;
#endif
/* make C compiler happy */
(void) fd;
hook_connect = (struct t_hook *)arg_hook_connect;
cb_error = NULL;
cb_ip_address = NULL;
num_read = read (HOOK_CONNECT(hook_connect, child_read),
buffer, sizeof (buffer));
if (num_read > 0)
{
if (buffer[0] - '0' == WEECHAT_HOOK_CONNECT_OK)
{
/* connection ok, read IP address */
buf_size[5] = '\0';
num_read = read (HOOK_CONNECT(hook_connect, child_read),
buf_size, 5);
if (num_read == 5)
{
error = NULL;
size_msg = strtol (buf_size, &error, 10);
if (error && !error[0] && (size_msg > 0))
{
cb_ip_address = malloc (size_msg + 1);
if (cb_ip_address)
{
num_read = read (HOOK_CONNECT(hook_connect, child_read),
cb_ip_address, size_msg);
if (num_read == size_msg)
cb_ip_address[size_msg] = '\0';
else
{
free (cb_ip_address);
cb_ip_address = NULL;
}
}
}
}
#ifdef HAVE_GNUTLS
if (HOOK_CONNECT(hook_connect, gnutls_sess))
{
/*
* the socket needs to be non-blocking since the call to
* gnutls_handshake can block
*/
HOOK_CONNECT(hook_connect, handshake_fd_flags) =
fcntl (HOOK_CONNECT(hook_connect, sock), F_GETFL);
if (HOOK_CONNECT(hook_connect, handshake_fd_flags) == -1)
HOOK_CONNECT(hook_connect, handshake_fd_flags) = 0;
fcntl (HOOK_CONNECT(hook_connect, sock), F_SETFL,
HOOK_CONNECT(hook_connect, handshake_fd_flags) | O_NONBLOCK);
gnutls_transport_set_ptr (*HOOK_CONNECT(hook_connect, gnutls_sess),
(gnutls_transport_ptr) ((ptrdiff_t) HOOK_CONNECT(hook_connect, sock)));
if (HOOK_CONNECT(hook_connect, gnutls_dhkey_size) > 0)
{
gnutls_dh_set_prime_bits (*HOOK_CONNECT(hook_connect, gnutls_sess),
(unsigned int) HOOK_CONNECT(hook_connect, gnutls_dhkey_size));
}
rc = gnutls_handshake (*HOOK_CONNECT(hook_connect, gnutls_sess));
if ((rc == GNUTLS_E_AGAIN) || (rc == GNUTLS_E_INTERRUPTED))
{
/*
* gnutls was unable to proceed with the handshake without
* blocking: non fatal error, we just have to wait for an
* event about handshake
*/
unhook (HOOK_CONNECT(hook_connect, hook_fd));
HOOK_CONNECT(hook_connect, hook_fd) = NULL;
direction = gnutls_record_get_direction (*HOOK_CONNECT(hook_connect, gnutls_sess));
HOOK_CONNECT(hook_connect, handshake_ip_address) = cb_ip_address;
HOOK_CONNECT(hook_connect, handshake_hook_fd) =
hook_fd (hook_connect->plugin,
HOOK_CONNECT(hook_connect, sock),
(!direction ? 1 : 0), (direction ? 1 : 0), 0,
&network_connect_gnutls_handshake_fd_cb,
hook_connect);
HOOK_CONNECT(hook_connect, handshake_hook_timer) =
hook_timer (hook_connect->plugin,
CONFIG_INTEGER(config_network_gnutls_handshake_timeout) * 1000,
0, 1,
&network_connect_gnutls_handshake_timer_cb,
hook_connect);
return WEECHAT_RC_OK;
}
else if (rc != GNUTLS_E_SUCCESS)
{
(void) (HOOK_CONNECT(hook_connect, callback))
(hook_connect->callback_data,
WEECHAT_HOOK_CONNECT_GNUTLS_HANDSHAKE_ERROR,
rc,
gnutls_strerror (rc),
cb_ip_address);
unhook (hook_connect);
if (cb_ip_address)
free (cb_ip_address);
return WEECHAT_RC_OK;
}
fcntl (HOOK_CONNECT(hook_connect, sock), F_SETFL,
HOOK_CONNECT(hook_connect, handshake_fd_flags));
#if LIBGNUTLS_VERSION_NUMBER < 0x02090a
/*
* gnutls only has the gnutls_certificate_set_verify_function()
* function since version 2.9.10. We need to call our verify
* function manually after the handshake for old gnutls versions
*/
if (hook_connect_gnutls_verify_certificates (*HOOK_CONNECT(hook_connect, gnutls_sess)) != 0)
{
(void) (HOOK_CONNECT(hook_connect, callback))
(hook_connect->callback_data,
WEECHAT_HOOK_CONNECT_GNUTLS_HANDSHAKE_ERROR,
rc,
"Error in the certificate.",
cb_ip_address);
unhook (hook_connect);
if (cb_ip_address)
free (cb_ip_address);
return WEECHAT_RC_OK;
}
#endif
}
#endif
}
else
{
/* connection error, read error */
buf_size[5] = '\0';
num_read = read (HOOK_CONNECT(hook_connect, child_read),
buf_size, 5);
if (num_read == 5)
{
error = NULL;
size_msg = strtol (buf_size, &error, 10);
if (error && !error[0] && (size_msg > 0))
{
cb_error = malloc (size_msg + 1);
if (cb_error)
{
num_read = read (HOOK_CONNECT(hook_connect, child_read),
cb_error, size_msg);
if (num_read == size_msg)
cb_error[size_msg] = '\0';
else
{
free (cb_error);
cb_error = NULL;
}
}
}
}
}
(void) (HOOK_CONNECT(hook_connect, callback))
(hook_connect->callback_data, buffer[0] - '0', 0,
cb_error, cb_ip_address);
unhook (hook_connect);
}
if (cb_error)
free (cb_error);
if (cb_ip_address)
free (cb_ip_address);
return WEECHAT_RC_OK;
}
