From b18de5b9246d89fad19f7e60eb0f2d9ef16bc8fe Mon Sep 17 00:00:00 2001
From: Simon Tatham <anakin@pobox.com>
Date: Wed, 20 Sep 2000 11:40:23 +0000
Subject: [PATCH] Ensure backend netevent handlers are never reentered - fixes
 many strange problems with the ssh.c coroutines

[originally from svn r603]
---
 window.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/window.c b/window.c
index 62b0b2a1..4e70dfe0 100644
--- a/window.c
+++ b/window.c
@@ -524,8 +524,16 @@ int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) {
  */
 static void enact_pending_netevent(void) {
     int i;
+    static int reentering = 0;
+
+    if (reentering)
+        return;                        /* don't unpend the pending */
+
     pending_netevent = FALSE;
+
+    reentering = 1;
     i = back->msg (pend_netevent_wParam, pend_netevent_lParam);
+    reentering = 0;
 
     if (i < 0) {
 	char buf[1024];