From 02925b9d061b28785a08ed3e84389b8ee1f230ce Mon Sep 17 00:00:00 2001
From: Theo de Raadt <deraadt@cvs.openbsd.org>
Date: Wed, 17 Dec 1997 07:40:43 +0000
Subject: make fd_set not overflow

---
 usr.sbin/amd/amd/info_hes.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/usr.sbin/amd/amd/info_hes.c b/usr.sbin/amd/amd/info_hes.c
index d0b0314f0f3..55ba86c6859 100644
--- a/usr.sbin/amd/amd/info_hes.c
+++ b/usr.sbin/amd/amd/info_hes.c
@@ -36,7 +36,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)info_hes.c	8.1 (Berkeley) 6/6/93
- *	$Id: info_hes.c,v 1.3 1997/06/23 01:36:00 deraadt Exp $
+ *	$Id: info_hes.c,v 1.4 1997/12/17 07:40:42 deraadt Exp $
  */
 
 /*
@@ -396,16 +396,22 @@ hs_res_selwait(sock, timeout)
 int sock;
 struct timeval *timeout;
 {
-	fd_set dsmask;
+	fd_set *fdsp;
+	int fdsn;
 	register int n;
 
 	/*
 	 * Wait for reply
 	 */
-	FD_ZERO(&dsmask);
-	FD_SET(sock, &dsmask);
-	n = select(sock+1, &dsmask, (fd_set *)NULL,
+	fdsn = howmany(sock+1, NFDBITS) * sizeof(fd_mask);
+	if ((fdsp = (fd_set *)malloc(fdsn)) == NULL)
+		return(0);
+	memset(fdsp, 0, fdsn);
+
+	FD_SET(sock, fdsp);
+	n = select(sock+1, fdsp, (fd_set *)NULL,
 		   (fd_set *)NULL, timeout);
+	free(fdsp);
 	return(n);
 }
 
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