From: Philip Homburg <philip@cs.vu.nl>
Date: Fri, 17 Feb 2006 13:47:31 +0000 (+0000)
Subject: improved tcp_acceptto.
X-Git-Tag: v3.1.2a~337
X-Git-Url: http://zhaoyanbai.com/repos/man.named-checkzone.html?a=commitdiff_plain;h=c367670fa88d5e14a9f7fcbae2c19026d882519e;p=minix.git

improved tcp_acceptto.
---

diff --git a/servers/inet/generic/tcp.c b/servers/inet/generic/tcp.c
index f7cee644f..04b888ece 100644
--- a/servers/inet/generic/tcp.c
+++ b/servers/inet/generic/tcp.c
@@ -2247,6 +2247,7 @@ tcp_fd_t *tcp_fd;
 	tcp_conn_t *tcp_conn;
 	tcp_cookie_t *cookiep;
 	acc_t *data;
+	tcp_cookie_t cookie;
 
 	if (!(tcp_fd->tf_flags & TFF_LISTENQ))
 	{
@@ -2272,11 +2273,13 @@ tcp_fd_t *tcp_fd;
 
 	data= bf_packIffLess(data, sizeof(*cookiep));
 	cookiep= (tcp_cookie_t *)ptr2acc_data(data);
+	cookie= *cookiep;
 
-	dst_nr= cookiep->tc_ref;
+	bf_afree(data); data= NULL;
+
+	dst_nr= cookie.tc_ref;
 	if (dst_nr < 0 || dst_nr >= TCP_FD_NR)
 	{
-		bf_afree(data); data= NULL;
 		printf("tcp_acceptto: bad fd %d\n", dst_nr);
 		tcp_reply_ioctl(tcp_fd, EINVAL);
 		return NW_OK;
@@ -2287,21 +2290,17 @@ tcp_fd_t *tcp_fd;
 		dst_fd->tf_conn != NULL ||
 		!(dst_fd->tf_flags & TFF_COOKIE))
 	{
-		bf_afree(data); data= NULL;
 		printf("tcp_acceptto: bad flags 0x%x or conn %p for fd %d\n",
 			dst_fd->tf_flags, dst_fd->tf_conn, dst_nr);
 		tcp_reply_ioctl(tcp_fd, EINVAL);
 		return NW_OK;
 	}
-	if (memcmp(cookiep, &dst_fd->tf_cookie, sizeof(*cookiep)) != 0)
+	if (memcmp(&cookie, &dst_fd->tf_cookie, sizeof(cookie)) != 0)
 	{
-		bf_afree(data); data= NULL;
 		printf("tcp_acceptto: bad cookie\n");
 		return NW_OK;
 	}
 
-	bf_afree(data); data= NULL;
-
 	/* Move connection */
 	tcp_fd->tf_listenq[i]= NULL;
 	tcp_conn->tc_fd= dst_fd;