Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-09-13 06:11:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

[lwIP]

Browse source 
Fix the nasty crash on socket closure bug. The bug was due to corrupting memory by wrongly assuming the LISTEN pcb had send, receive and error callbacks.

svn path=/branches/GSoC_2011/TcpIpDriver/; revision=52385
This commit is contained in:
Claudiu Mihail 2011-06-20 14:49:58 +00:00
parent 4b7e0f11d0
commit b320225fb2
1 changed files with 13 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
lib/drivers/lwip/src/rostcp.c
View file

@ -330,20 +330,16 @@ void
LibTCPListenCallback(void *arg)
{
struct listen_callback_msg *msg = arg;
void *p;
ASSERT(msg);
DbgPrint("[lwIP, LibTCPListenCallback] Called\n");
p = msg->Pcb->callback_arg;
msg->NewPcb = tcp_listen_with_backlog(msg->Pcb, msg->Backlog);
if (msg->NewPcb)
{
tcp_arg(msg->NewPcb, p);
tcp_accept(msg->NewPcb, InternalAcceptEventHandler);
tcp_err(msg->NewPcb, InternalErrorEventHandler);
}
DbgPrint("[lwIP, LibTCPListenCallback] Done\n");
@ -641,9 +637,18 @@ LibTCPClose(struct tcp_pcb *pcb)
DbgPrint("[lwIP, LibTCPClose] pcb->state = %s\n", tcp_state_str[pcb->state]);
tcp_arg(pcb, NULL);
tcp_recv(pcb, NULL);
tcp_sent(pcb, NULL);
tcp_err(pcb, NULL);
/*
if this pcb is not in LISTEN state than it has
valid recv, send and err callbacks to cancel
*/
if (pcb->state != LISTEN)
{
tcp_recv(pcb, NULL);
tcp_sent(pcb, NULL);
tcp_err(pcb, NULL);
}
tcp_accept(pcb, NULL);
DbgPrint("[lwIP, LibTCPClose] Attempting to allocate memory for msg\n");