static void
signal_handler (int signo)
{
static gboolean in_loop = FALSE;
/* Die if we get re-entrant signals handler calls */
if (in_loop) {
_exit (EXIT_FAILURE);
}
switch (signo) {
case SIGTERM:
case SIGINT:
in_loop = TRUE;
if (main_loop != NULL) {
g_main_loop_quit (main_loop);
} else {
exit (0);
}
/* Fall through */
default:
if (g_strsignal (signo)) {
g_print ("\n");
g_print ("Received signal:%d->'%s'\n",
signo,
g_strsignal (signo));
}
break;
}
}
static gboolean
signal_handler (gpointer user_data)
{
int signo = GPOINTER_TO_INT (user_data);
static gboolean in_loop = FALSE;
/* Die if we get re-entrant signals handler calls */
if (in_loop) {
_exit (EXIT_FAILURE);
}
switch (signo) {
case SIGTERM:
case SIGINT:
in_loop = TRUE;
g_main_loop_quit (main_loop);
/* Fall through */
default:
if (g_strsignal (signo)) {
g_print ("\n");
g_print ("Received signal:%d->'%s'\n",
signo,
g_strsignal (signo));
}
break;
}
return G_SOURCE_CONTINUE;
}
static void
rspamd_worker_term_handler (struct rspamd_worker_signal_handler *sigh, void *arg)
{
struct timeval tv;
if (!sigh->worker->wanna_die) {
rspamd_default_log_function (G_LOG_LEVEL_INFO,
sigh->worker->srv->server_pool->tag.tagname,
sigh->worker->srv->server_pool->tag.uid,
G_STRFUNC,
"terminating after receiving signal %s",
g_strsignal (sigh->signo));
tv.tv_usec = 0;
if (rspamd_worker_terminate_handlers (sigh->worker)) {
tv.tv_sec = SOFT_SHUTDOWN_TIME;
}
else {
tv.tv_sec = 0;
}
sigh->worker->wanna_die = 1;
event_base_loopexit (sigh->base, &tv);
#ifdef WITH_GPERF_TOOLS
ProfilerStop ();
#endif
rspamd_worker_stop_accept (sigh->worker);
}
}
static void sig_pidwait(void *pid, void *statusp)
{
PROCESS_REC *rec;
char *str;
int status = GPOINTER_TO_INT(statusp);
rec = process_find_pid(GPOINTER_TO_INT(pid));
if (rec == NULL) return;
/* process exited - print the last line if
there wasn't a newline at end. */
if (line_split("\n", 1, &str, &rec->databuf) > 0 && *str != '\0')
signal_emit_id(signal_exec_input, 2, rec, str);
if (!rec->silent) {
if (WIFSIGNALED(status)) {
status = WTERMSIG(status);
printtext(NULL, NULL, MSGLEVEL_CLIENTNOTICE,
"process %d (%s) terminated with signal %d (%s)",
rec->id, rec->args,
status, g_strsignal(status));
} else {
status = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
printtext(NULL, NULL, MSGLEVEL_CLIENTNOTICE,
"process %d (%s) terminated with return code %d",
rec->id, rec->args, status);
}
}
process_destroy(rec, status);
}
static void sig_pidwait(void *pid, void *statusp)
{
PROCESS_REC *rec;
int status = GPOINTER_TO_INT(statusp);
rec = process_find_pid(GPOINTER_TO_INT(pid));
if (rec == NULL) return;
/* process exited */
if (!rec->silent) {
if (WIFSIGNALED(status)) {
status = WTERMSIG(status);
printtext(NULL, NULL, MSGLEVEL_CLIENTNOTICE,
"process %d (%s) terminated with signal %d (%s)",
rec->id, rec->args,
status, g_strsignal(status));
} else {
status = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
printtext(NULL, NULL, MSGLEVEL_CLIENTNOTICE,
"process %d (%s) terminated with return code %d",
rec->id, rec->args, status);
}
}
process_destroy(rec, status);
}
static void
on_session_died (MdmSession *session,
int signal_number)
{
g_print ("session died with signal %d, (%s)\n",
signal_number,
g_strsignal (signal_number));
exit (1);
}
static void
gimp_sigfatal_handler (gint sig_num)
{
switch (sig_num)
{
case SIGHUP:
case SIGINT:
case SIGQUIT:
case SIGABRT:
case SIGTERM:
gimp_terminate (g_strsignal (sig_num));
break;
case SIGBUS:
case SIGSEGV:
case SIGFPE:
default:
gimp_fatal_error (g_strsignal (sig_num));
break;
}
}
static void G_GNUC_NORETURN fatal_signal_handler(int sig) {
sigset_t sigset;
sigemptyset(&sigset);
sigprocmask(SIG_SETMASK, &sigset, NULL);
g_print("\nLiferea did receive signal %d (%s).\n", sig, g_strsignal(sig));
g_print("You have probably triggered a program bug. I will now try to \n");
g_print("create a backtrace which you can attach to any support requests.\n\n");
g_on_error_stack_trace(PACKAGE);
_exit(1);
}
static void
panel_signal_handler (gint signum)
{
static gboolean was_triggered = FALSE;
/* avoid recursing this handler if we receive a
* signal before the mainloop is started */
if (was_triggered)
return;
was_triggered = TRUE;
panel_debug (PANEL_DEBUG_MAIN,
"received signal %s <%d>, %s panel",
g_strsignal (signum), signum,
signum == SIGUSR1 ? "restarting" : "quiting");
panel_dbus_service_exit_panel (signum == SIGUSR1);
}
static void signal_handler(int signum) {
switch(signum) {
case SIGINT:
rm_session_abort();
break;
case SIGFPE:
case SIGABRT:
case SIGSEGV:
/* logging messages might have unexpected effects in a signal handler,
* but that's probably the least thing we have to worry about in case of
* a segmentation fault.
*/
rm_log_error_line(_("Aborting due to a fatal error. (signal received: %s)"),
g_strsignal(signum));
rm_log_error_line(_("Please file a bug report (See rmlint -h)"));
exit(1);
default:
break;
}
}
/* Main Entry Point for this Daemon */
extern int main (int argc, char *argv[])
{
sigset_t signal_set;
GMainLoop *main_loop = NULL;
GError *gerror = NULL;
GThread *sig_thread = NULL;
GOptionContext *context = NULL;
gpointer trc = NULL;
uid_t real_user_id = 0;
uid_t effective_user_id = 0;
gint rc = 0;
struct passwd *userinfo = NULL;
/* initialize threading and mainloop */
g_type_init();
main_loop = g_main_loop_new (NULL, FALSE);
/* handle command line arguments */
if ((rc = _handle_command_line( argc, argv, &context)) != EXIT_SUCCESS) {
g_main_loop_unref (main_loop);
exit (rc);
}
/* remember real and effective userid to restore them on shutdown */
real_user_id = getuid ();
if (gd_pch_effective_userid != NULL) {
userinfo = getpwnam(gd_pch_effective_userid);
effective_user_id = userinfo->pw_uid;
}
else {
effective_user_id = geteuid();
userinfo = getpwuid(effective_user_id);
gd_pch_effective_userid = userinfo->pw_name;
}
g_message("%s-%s is in startup mode as user(%s)",
PACKAGE_NAME, PACKAGE_VERSION, gd_pch_effective_userid);
/* daemonize */
if (!i_debug) {
switch (_daemonize(gd_pch_pid_filename)) {
case EXIT_SUCCESS: /* grandchild */
break;
case EXIT_ERROR: /* any error */
exit (EXIT_FAILURE);
break;
default: /* parent or child pids */
exit (EXIT_SUCCESS);
break;
}
}
else {
g_message("Skipping daemonizing process");
}
/* become the requested user */
seteuid (effective_user_id);
if (!i_debug) {
/* block all signals */
sigfillset (&signal_set);
pthread_sigmask (SIG_BLOCK, &signal_set, NULL);
/* create the signal handling thread */
sig_thread = g_thread_create ((GThreadFunc)_thread_handle_signals,
main_loop, TRUE, &gerror);
if (gerror != NULL) {
g_message("Create signal thread failed: %s", gerror->message);
g_error_free(gerror);
g_option_context_free(context);
g_main_loop_unref (main_loop);
exit (EXIT_FAILURE);
}
}
_load_config();
if (!phonefsod_dbus_setup()) {
g_option_context_free(context);
g_main_loop_unref(main_loop);
exit(EXIT_FAILURE);
}
//notify = inotify_init();
//inotify_add_watch(notify, PHONEFSOD_CONFIG, IN_MODIFY);
/* Start glib main loop and run list_resources() */
g_debug("entering glib main loop");
g_timeout_add_seconds(1, fso_startup, NULL);
g_main_loop_run(main_loop);
phonefsod_dbus_shutdown();
/* Cleanup and exit */
if (!i_debug) {
trc = g_thread_join(sig_thread);
g_message("Signal thread was ended by a %s signal.",
g_strsignal(GPOINTER_TO_INT(trc)) );
pthread_sigmask (SIG_UNBLOCK, &signal_set, NULL);
g_option_context_free (context);
}
g_main_loop_unref (main_loop);
// if (incoming_calls)
// free(incoming_calls);
// if (outgoing_calls)
// free(outgoing_calls);
if (sim_pin)
free(sim_pin);
if (pdp_apn)
free(pdp_apn);
if (pdp_user)
free(pdp_user);
if (pdp_password)
free(pdp_password);
/* become the privledged user again */
seteuid (real_user_id);
/* Remove the PID File to show we are inactive */
if (!i_debug) {
if (g_unlink(gd_pch_pid_filename) != 0) {
g_warning("Main Error: cannot unlink/remove pidfile %s: %s",
gd_pch_pid_filename, strerror(errno));
}
}
/* write shutdown messages */
g_message("%s-%s clean shutdown", PACKAGE_NAME, PACKAGE_VERSION);
exit (EXIT_SUCCESS);
}
/*
* _process_signals()
*
* Handle/Process linux signals for the whole multi-threaded application.
*
* Params:
* sig -- current linux signal
*
* Returns/Affects:
* returns current value of the atomic int gd_flag_exit
* returns true (or current value) if nothing needs done
* returns 0 or false if exit is required
*/
static gint _process_signals ( siginfo_t *signal_info)
{
int rval = g_atomic_int_get(&gd_flag_exit); /* use existing value */
gint sig = 0;
gchar *pch = "<unknown>";
g_return_val_if_fail (signal_info != NULL, 0);
sig = signal_info->si_signo;
/* look to see what signal has been caught */
switch ( sig ) {
case SIGHUP: /* often used to reload configuration */
case SIGUSR1: /* Any user function */
switch (signal_info->si_code) {
case SI_USER: pch="kill(2) or raise(3)"; break;
case SI_KERNEL: pch="Sent by the kernel."; break;
case SI_QUEUE: pch="sigqueue(2)"; break;
case SI_TIMER: pch="POSIX timer expired"; break;
case SI_MESGQ: pch="POSIX message queue state changed"; break;
case SI_ASYNCIO: pch="AIO completed"; break;
case SI_SIGIO: pch="queued SIGIO"; break;
case SI_TKILL: pch="tkill(2) or tgkill(2)"; break;
default: pch = "<unknown>"; break;
}
g_debug("%s received from => %s ?[pid=%d, uid=%d]{Ignored}",
g_strsignal(sig), pch, signal_info->si_pid,signal_info->si_uid);
break;
case SIGCHLD: /* some child ended */
switch (signal_info->si_code) {
case CLD_EXITED: pch = "child has exited"; break;
case CLD_KILLED: pch = "child was killed"; break;
case CLD_DUMPED: pch = "child terminated abnormally"; break;
case CLD_TRAPPED: pch = "traced child has trapped"; break;
case CLD_STOPPED: pch = "child has stopped"; break;
case CLD_CONTINUED: pch = "stopped child has continued"; break;
default: pch = "<unknown>"; break;
}
g_debug("%s received for pid => %d, w/rc => %d for this reason => %s {Ignored}",
g_strsignal(sig), signal_info->si_pid, signal_info->si_status, pch);
break;
case SIGQUIT: /* often used to signal an orderly shutdown */
case SIGINT: /* often used to signal an orderly shutdown */
case SIGPWR: /* Power Failure */
case SIGKILL: /* Fatal Exit flag */
case SIGTERM: /* Immediately Fatal Exit flag */
switch (signal_info->si_code) {
case SI_USER: pch="kill(2) or raise(3)"; break;
case SI_KERNEL: pch="Sent by the kernel."; break;
case SI_QUEUE: pch="sigqueue(2)"; break;
case SI_TIMER: pch="POSIX timer expired"; break;
case SI_MESGQ: pch="POSIX message queue state changed"; break;
case SI_ASYNCIO: pch="AIO completed"; break;
case SI_SIGIO: pch="queued SIGIO"; break;
case SI_TKILL: pch="tkill(2) or tgkill(2)"; break;
default: pch = "<unknown>"; break;
}
g_debug("%s received from => %s ?[pid=%d, uid=%d]{Exiting}",
g_strsignal(sig), pch, signal_info->si_pid,
signal_info->si_uid);
rval = 0;
break;
default:
g_debug("%s received => {Ignored}", g_strsignal(sig));
break;
} /* end switch */
return (rval);
}
static gboolean
sendmail_send_to_sync (CamelTransport *transport,
CamelMimeMessage *message,
CamelAddress *from,
CamelAddress *recipients,
gboolean *out_sent_message_saved,
GCancellable *cancellable,
GError **error)
{
CamelHeaderRaw *header, *savedbcc, *n, *tail;
const gchar *from_addr, *addr;
GPtrArray *argv_arr;
gint i, len, fd[2], nullfd, wstat;
CamelStream *filter;
CamelMimeFilter *crlf;
sigset_t mask, omask;
CamelStream *out;
CamelSendmailSettings *settings;
const gchar *binary = SENDMAIL_PATH;
gchar *custom_binary = NULL, *custom_args = NULL;
gboolean success;
pid_t pid;
success = camel_internet_address_get (
CAMEL_INTERNET_ADDRESS (from), 0, NULL, &from_addr);
if (!success) {
g_set_error (
error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
_("Failed to read From address"));
return FALSE;
}
settings = CAMEL_SENDMAIL_SETTINGS (camel_service_ref_settings (CAMEL_SERVICE (transport)));
if (!camel_sendmail_settings_get_send_in_offline (settings)) {
CamelSession *session;
gboolean is_online;
session = camel_service_ref_session (CAMEL_SERVICE (transport));
is_online = session && camel_session_get_online (session);
g_clear_object (&session);
if (!is_online) {
g_set_error (
error, CAMEL_SERVICE_ERROR, CAMEL_SERVICE_ERROR_UNAVAILABLE,
_("Message send in offline mode is disabled"));
return FALSE;
}
}
if (camel_sendmail_settings_get_use_custom_binary (settings)) {
custom_binary = camel_sendmail_settings_dup_custom_binary (settings);
if (custom_binary && *custom_binary)
binary = custom_binary;
}
if (camel_sendmail_settings_get_use_custom_args (settings)) {
custom_args = camel_sendmail_settings_dup_custom_args (settings);
/* means no arguments used */
if (!custom_args)
custom_args = g_strdup ("");
}
g_object_unref (settings);
len = camel_address_length (recipients);
for (i = 0; i < len; i++) {
success = camel_internet_address_get (
CAMEL_INTERNET_ADDRESS (recipients), i, NULL, &addr);
if (!success) {
g_set_error (
error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
_("Could not parse recipient list"));
g_free (custom_binary);
g_free (custom_args);
return FALSE;
}
}
argv_arr = parse_sendmail_args (
binary,
custom_args ? custom_args : "-i -f %F -- %R",
from_addr,
recipients);
if (!argv_arr) {
g_set_error (
error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
_("Could not parse arguments"));
g_free (custom_binary);
g_free (custom_args);
return FALSE;
}
/* unlink the bcc headers */
savedbcc = NULL;
tail = (CamelHeaderRaw *) &savedbcc;
header = (CamelHeaderRaw *) &CAMEL_MIME_PART (message)->headers;
n = header->next;
while (n != NULL) {
if (!g_ascii_strcasecmp (n->name, "Bcc")) {
header->next = n->next;
tail->next = n;
n->next = NULL;
tail = n;
} else {
header = n;
}
n = header->next;
}
if (pipe (fd) == -1) {
g_set_error (
error, G_IO_ERROR,
g_io_error_from_errno (errno),
_("Could not create pipe to '%s': %s: "
"mail not sent"), binary, g_strerror (errno));
/* restore the bcc headers */
header->next = savedbcc;
g_free (custom_binary);
g_free (custom_args);
g_ptr_array_free (argv_arr, TRUE);
return FALSE;
}
/* Block SIGCHLD so the calling application doesn't notice
* sendmail exiting before we do.
*/
sigemptyset (&mask);
sigaddset (&mask, SIGCHLD);
sigprocmask (SIG_BLOCK, &mask, &omask);
pid = fork ();
switch (pid) {
case -1:
g_set_error (
error, G_IO_ERROR,
g_io_error_from_errno (errno),
_("Could not fork '%s': %s: "
"mail not sent"), binary, g_strerror (errno));
close (fd[0]);
close (fd[1]);
sigprocmask (SIG_SETMASK, &omask, NULL);
/* restore the bcc headers */
header->next = savedbcc;
g_free (custom_binary);
g_free (custom_args);
g_ptr_array_free (argv_arr, TRUE);
return FALSE;
case 0:
/* Child process */
nullfd = open ("/dev/null", O_RDWR);
dup2 (fd[0], STDIN_FILENO);
if (nullfd != -1) {
/*dup2 (nullfd, STDOUT_FILENO);
dup2 (nullfd, STDERR_FILENO);*/
close (nullfd);
}
close (fd[1]);
execv (binary, (gchar **) argv_arr->pdata);
_exit (255);
}
g_ptr_array_free (argv_arr, TRUE);
/* Parent process. Write the message out. */
close (fd[0]);
out = camel_stream_fs_new_with_fd (fd[1]);
/* XXX Workaround for lame sendmail implementations
* that can't handle CRLF eoln sequences. */
filter = camel_stream_filter_new (out);
crlf = camel_mime_filter_crlf_new (
CAMEL_MIME_FILTER_CRLF_DECODE,
CAMEL_MIME_FILTER_CRLF_MODE_CRLF_ONLY);
camel_stream_filter_add (CAMEL_STREAM_FILTER (filter), crlf);
g_object_unref (crlf);
g_object_unref (out);
out = (CamelStream *) filter;
if (camel_data_wrapper_write_to_stream_sync (
CAMEL_DATA_WRAPPER (message), out, cancellable, error) == -1
|| camel_stream_close (out, cancellable, error) == -1) {
g_object_unref (out);
g_prefix_error (error, _("Could not send message: "));
/* Wait for sendmail to exit. */
while (waitpid (pid, &wstat, 0) == -1 && errno == EINTR)
;
sigprocmask (SIG_SETMASK, &omask, NULL);
/* restore the bcc headers */
header->next = savedbcc;
g_free (custom_binary);
g_free (custom_args);
return FALSE;
}
g_object_unref (out);
/* Wait for sendmail to exit. */
while (waitpid (pid, &wstat, 0) == -1 && errno == EINTR)
;
sigprocmask (SIG_SETMASK, &omask, NULL);
/* restore the bcc headers */
header->next = savedbcc;
if (!WIFEXITED (wstat)) {
g_set_error (
error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
_("'%s' exited with signal %s: mail not sent."),
binary, g_strsignal (WTERMSIG (wstat)));
g_free (custom_binary);
g_free (custom_args);
return FALSE;
} else if (WEXITSTATUS (wstat) != 0) {
if (WEXITSTATUS (wstat) == 255) {
g_set_error (
error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
_("Could not execute '%s': mail not sent."),
binary);
} else {
g_set_error (
error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
_("'%s' exited with status %d: "
"mail not sent."),
binary, WEXITSTATUS (wstat));
}
g_free (custom_binary);
g_free (custom_args);
return FALSE;
}
g_free (custom_binary);
g_free (custom_args);
return TRUE;
}
