Correctly retry outgoing conenctions when forking a resolver failed

When ngIRCd failed to spawn a new resolver subprocess, the connection
structure was still marked as "SERVER_WAIT", and no new attempt to
connect to this server was made.

Thanks to Robert Obermeier for reporting this bug!

Closes #243.

diff --git a/src/ngircd/conn.c b/src/ngircd/conn.c
index 16cf13cf0ef6478e1932688e8da82baed6e1bdb7..5505e646e0b70dfedaf5fe80012745b336d7bf7e 100644 (file)
--- a/src/ngircd/conn.c
+++ b/src/ngircd/conn.c
@@ -1,6 +1,6 @@
 /*
  * ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2014 Alexander Barton (alex@barton.de) and Contributors.
+ * Copyright (c)2001-2018 Alexander Barton (alex@barton.de) and Contributors.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -1918,8 +1918,11 @@ Check_Servers(void)
                Conf_Server[i].lasttry = time_now;
                Conf_Server[i].conn_id = SERVER_WAIT;
                assert(Proc_GetPipeFd(&Conf_Server[i].res_stat) < 0);
-               Resolve_Name(&Conf_Server[i].res_stat, Conf_Server[i].host,
-                            cb_Connect_to_Server);
+
+               /* Start resolver subprocess ... */
+               if (!Resolve_Name(&Conf_Server[i].res_stat, Conf_Server[i].host,
+                                 cb_Connect_to_Server))
+                       Conf_Server[i].conn_id = NONE;
        }
 } /* Check_Servers */