From: Michael Brown <mcb30@etherboot.org>
Date: Thu, 10 Jul 2008 03:21:10 +0000 (+0100)
Subject: [udp] Avoid reusing auto-allocated ports after connection close.
X-Git-Tag: v0.9.4~82
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=21e9e801e268302cf2705d9b0e658f9896963fe0;p=thirdparty%2Fipxe.git

[udp] Avoid reusing auto-allocated ports after connection close.

This duplicates a fix made to tcp.c in commit
d5735c631cf26d8e1bcf7b5e635623b52d6b48aa.
---

diff --git a/src/net/udp.c b/src/net/udp.c
index 8df76a445..407ea14db 100644
--- a/src/net/udp.c
+++ b/src/net/udp.c
@@ -55,11 +55,12 @@ struct tcpip_protocol udp_protocol;
  */
 static int udp_bind ( struct udp_connection *udp ) {
 	struct udp_connection *existing;
-	static uint16_t try_port = 1024;
+	static uint16_t try_port = 1023;
 
 	/* If no port specified, find the first available port */
 	if ( ! udp->local.st_port ) {
-		for ( ; try_port ; try_port++ ) {
+		while ( try_port ) {
+			try_port++;
 			if ( try_port < 1024 )
 				continue;
 			udp->local.st_port = htons ( try_port );