core: quit WeeChat on ctrl-C (signal SIGINT) in headless mode

src/core/weechat.c

@@ -88,7 +88,7 @@ time_t weechat_first_start_time = 0;   /* start time (used by /uptime cmd)  */
 int weechat_upgrade_count = 0;         /* number of /upgrade done           */
 struct timeval weechat_current_start_timeval; /* start time used to display */
                                        /* duration of /upgrade              */
-int weechat_quit = 0;                  /* = 1 if quit request from user     */
+volatile sig_atomic_t weechat_quit = 0;   /* = 1 if quit request from user  */
 volatile sig_atomic_t weechat_quit_signal = 0; /* signal received,          */
                                        /* WeeChat must quit                 */
 char *weechat_home = NULL;             /* home dir. (default: ~/.weechat)   */
@@ -421,7 +421,9 @@ weechat_startup_message ()
 {
     if (weechat_headless)
     {
-        string_fprintf (stdout, _("WeeChat is running in headless mode."));
+        string_fprintf (stdout,
+                        _("WeeChat is running in headless mode "
+                          "(Ctrl-C to quit)."));
         string_fprintf (stdout, "\n");
     }
 

src/core/weechat.h

@@ -105,7 +105,7 @@ extern int weechat_first_start;
 extern time_t weechat_first_start_time;
 extern struct timeval weechat_current_start_timeval;
 extern int weechat_upgrade_count;
-extern int weechat_quit;
+extern volatile sig_atomic_t weechat_quit;
 extern volatile sig_atomic_t weechat_quit_signal;
 extern char *weechat_home;
 extern char *weechat_local_charset;

src/gui/curses/gui-curses-main.c

@@ -142,6 +142,16 @@ gui_main_get_password (const char **prompt, char *password, int size)
     endwin ();
 }
 
+/*
+ * Callback for system signal SIGINT: quits WeeChat.
+ */
+
+void
+gui_main_signal_sigint ()
+{
+    weechat_quit = 1;
+}
+
 /*
  * Initializes GUI.
  */
@@ -154,6 +164,11 @@ gui_main_init ()
     struct t_gui_bar_window *ptr_bar_win;
     char title[256];
 
+#ifdef WEECHAT_HEADLESS
+    /* allow Ctrl-C to quit WeeChat in headless mode */
+    util_catch_signal (SIGINT, &gui_main_signal_sigint);
+#endif /* WEECHAT_HEADLESS */
+
     initscr ();
 
     if (CONFIG_BOOLEAN(config_look_eat_newline_glitch))