Exit if no sockets could be bound.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@3838 ec53bebd-3082-4978-b11e-865c3cabbd6b

kdc/connect.c

@@ -512,6 +512,8 @@ loop(void)
     struct descr *d;
     int ndescr;
     ndescr = init_sockets(&d);
+    if(ndescr <= 0)
+	krb5_errx(context, 1, "No sockets!");
     while(exit_flag == 0){
 	struct timeval tmout;
 	struct fd_set fds;