Re: [Linux-decnet-user] Strange sethost problem

[Patrick C. <pa...@ty...>]

On Wed, May 19, 2004 at 07:58:59AM +0000, ada...@br... wrote:
> Hi
> 
> I get the login prompt
> enter username followed by password
> A few lines print out indicating the login was successful, but a few
> seconds later im returned to the local prompt with the message 'Alarm
> Clock'.
> 
> This is happening on vms 5 and 6 machines
> 
> Using dnlogin on the same hosts works fine.

I've seen this once or twice, but am not sure what's causing it - it
could be the classic BSD signal race but I'm not quite sure how that could
happen with SIGALRM. Nevertheless you might like to try this patch:
 
diff -u -r1.8 sethost.c
--- sethost.c   26 Sep 2003 08:02:05 -0000      1.8
+++ sethost.c   20 May 2004 07:34:21 -0000
@@ -252,7 +252,6 @@
 static void ct_timeout_proc(int x)
 {       if (debug == 2) { printf(" Entered static void ct_timeout_proc...\n");}
        ct_terminate_read(5);
-       signal(SIGALRM,ct_timeout_proc);
 }
 /*-------------------------------------------------------------------------*/
 static void ct_echo_input_char(char *c)
@@ -1846,6 +1845,11 @@
     ct_init_term();                            /* Set terminal in raw mode*/
 
     sigemptyset(&ss);
+    sa.sa_handler = ct_timeout_proc;
+    sa.sa_mask = ss;
+    sa.sa_flags = 0;
+    sigaction(SIGALRM, &sa, NULL);
+
     if (debug == 1)
     {
     printf("Connection to %d flavor",flavor); /*ed*/



-- 

patrick