From e2e10f8d7a4d9477a8e35d10df5f54885fe3c092 Mon Sep 17 00:00:00 2001
From: james <james@e7ae566f-a301-0410-adde-c780ea21d3b5>
Date: Wed, 16 Jul 2008 23:11:29 +0000
Subject: Added SOCKET_SND_RCV_BUF_MAX constant (set to 1000000) to limit the
 maximum size passed to setsockopt SNDBUF/RCVBUF.

git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3062 e7ae566f-a301-0410-adde-c780ea21d3b5
---
 socket.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

(limited to 'socket.c')

diff --git a/socket.c b/socket.c
index ffb8c11..135fb0e 100644
--- a/socket.c
+++ b/socket.c
@@ -292,9 +292,12 @@ static void
 socket_set_sndbuf (int sd, int size)
 {
 #if defined(HAVE_SETSOCKOPT) && defined(SOL_SOCKET) && defined(SO_SNDBUF)
-  if (setsockopt (sd, SOL_SOCKET, SO_SNDBUF, (void *) &size, sizeof (size)) != 0)
+  if (size > 0 && size < SOCKET_SND_RCV_BUF_MAX)
     {
-      msg (M_WARN, "NOTE: setsockopt SO_SNDBUF=%d failed", size);
+      if (setsockopt (sd, SOL_SOCKET, SO_SNDBUF, (void *) &size, sizeof (size)) != 0)
+	{
+	  msg (M_WARN, "NOTE: setsockopt SO_SNDBUF=%d failed", size);
+	}
     }
 #endif
 }
@@ -318,10 +321,13 @@ static bool
 socket_set_rcvbuf (int sd, int size)
 {
 #if defined(HAVE_SETSOCKOPT) && defined(SOL_SOCKET) && defined(SO_RCVBUF)
-  if (setsockopt (sd, SOL_SOCKET, SO_RCVBUF, (void *) &size, sizeof (size)) != 0)
+  if (size > 0 && size < SOCKET_SND_RCV_BUF_MAX)
     {
-      msg (M_WARN, "NOTE: setsockopt SO_RCVBUF=%d failed", size);
-      return false;
+      if (setsockopt (sd, SOL_SOCKET, SO_RCVBUF, (void *) &size, sizeof (size)) != 0)
+	{
+	  msg (M_WARN, "NOTE: setsockopt SO_RCVBUF=%d failed", size);
+	  return false;
+	}
     }
   return true;
 #endif
-- 
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