diff -up iputils-s20071127/rdisc.c.open_max iputils-s20071127/rdisc.c

--- iputils-s20071127/rdisc.c.open_max	2008-02-25 11:15:37.000000000 +0100

+++ iputils-s20071127/rdisc.c	2008-02-25 11:17:30.000000000 +0100

@@ -240,14 +240,25 @@ void do_fork(void)

 {

 	int t;

 	pid_t pid;

+	long open_max;

 	if (trace)

 		return;

+	if ((open_max = sysconf(_SC_OPEN_MAX)) == -1) {

+		if (errno == 0) {

+			(void) fprintf(stderr, "OPEN_MAX is not supported\n");

+		} 

+		else {

+			(void) fprintf(stderr, "sysconf() error\n");

+		}

+		exit(1);

+	}

+

 	if ((pid=fork()) != 0)

 		exit(0);

-	for (t = 0; t < OPEN_MAX; t++)

+	for (t = 0; t < open_max; t++)

 		if (t != s)

 			close(t);