From 684d0250a465ab096a7dec4f67bd2d4620cec54a Mon Sep 17 00:00:00 2001
From: brain
Date: Wed, 19 Jul 2006 20:17:14 +0000
Subject: Stability fix

git-svn-id: http://svn.inspircd.org/repository/branches/1_0_stable@4452 e03df62e-2008-0410-955e-edbf42e46eb7
---
 src/userprocess.cpp | 33 ++++++++++++++-------------------
 1 file changed, 14 insertions(+), 19 deletions(-)

(limited to 'src/userprocess.cpp')

diff --git a/src/userprocess.cpp b/src/userprocess.cpp
index 9ae68cbfd..237cd61bb 100644
--- a/src/userprocess.cpp
+++ b/src/userprocess.cpp
@@ -341,24 +341,21 @@ void DoBackgroundUserStuff(time_t TIME)
 {
 	CullList GlobalGoners;
 
-	size_t f = local_users.size();
+	int cfd = 0;
 
-	for (std::vector<userrec*>::iterator count2 = local_users.begin(); count2 != local_users.end(); count2++)
+	/* XXX: IT IS NOT SAFE TO USE AN ITERATOR HERE. DON'T EVEN THINK ABOUT IT. */
+	for (unsigned long count2 = 0; count2 != local_users.size(); count2++)
 	{
 		/* GRONK */
-		if (f != local_users.size())
+		if (count2 >= local_users.size())
 			break;
 
-		/* Sanity checks for corrupted iterators (yes, really) */
-		userrec* curr = NULL;
-
-		if (*count2)
-			curr = (userrec*)(*count2);
-		if ((long)curr == -1)
-			return;
+		userrec* curr = local_users[count2];
 
 		if (curr)
 		{
+			cfd = curr->fd;
+
 			/*
 			 * registration timeout -- didnt send USER/NICK/HOST
 			 * in the time specified in their connection class.
@@ -407,20 +404,18 @@ void DoBackgroundUserStuff(time_t TIME)
 				curr->nping = TIME+curr->pingmax;
 			}
 
-			/* GANK */
-			if (f != local_users.size())
-				break;
-
 			/*
 			 * We can flush the write buffer as the last thing we do, because if they
 			 * match any of the above conditions its no use flushing their buffer anyway.
 			 */
-			curr->FlushWriteBuf();
-
-			if (*curr->GetWriteError())
+			if ((cfd > 0) && (cfd < MAX_DESCRIPTORS) && (fd_ref_table[cfd] == curr) && (curr))
 			{
-				GlobalGoners.AddItem(curr,curr->GetWriteError());
-				continue;
+				curr->FlushWriteBuf();
+				if (*curr->GetWriteError())
+				{
+					GlobalGoners.AddItem(curr,curr->GetWriteError());
+					continue;
+				}
 			}
 		}
 	}
-- 
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