--- a/common-channel.c	Sun Apr 14 22:49:10 2013 +0800
+++ b/common-channel.c	Sun Apr 14 22:49:19 2013 +0800
@@ -273,10 +273,10 @@
 static void check_close(struct Channel *channel) {
 	int close_allowed = 0;
 
-	TRACE(("check_close: writefd %d, readfd %d, errfd %d, sent_close %d, recv_close %d",
+	TRACE2(("check_close: writefd %d, readfd %d, errfd %d, sent_close %d, recv_close %d",
 				channel->writefd, channel->readfd,
 				channel->errfd, channel->sent_close, channel->recv_close))
-	TRACE(("writebuf size %d extrabuf size %d",
+	TRACE2(("writebuf size %d extrabuf size %d",
 				channel->writebuf ? cbuf_getused(channel->writebuf) : 0,
 				channel->extrabuf ? cbuf_getused(channel->extrabuf) : 0))
 
@@ -561,7 +561,11 @@
 	TRACE(("CLOSE errfd %d", channel->errfd))
 	close(channel->errfd);
 
-	channel->typedata = NULL;
+	if (!channel->close_handler_done
+		&& channel->type->closehandler) {
+		channel->type->closehandler(channel);
+		channel->close_handler_done = 1;
+	}
 
 	ses.channels[channel->index] = NULL;
 	m_free(channel);
@@ -625,7 +629,7 @@
 	 * exttype if is extended */
 	maxlen = MIN(maxlen, 
 			ses.writepayload->size - 1 - 4 - 4 - (isextended ? 4 : 0));
-	TRACE(("maxlen %d", maxlen))
+	TRACE(("maxlen %zd", maxlen))
 	if (maxlen == 0) {
 		TRACE(("leave send_msg_channel_data: no window"))
 		return;
@@ -643,6 +647,7 @@
 
 	/* read the data */
 	len = read(fd, buf_getwriteptr(ses.writepayload, maxlen), maxlen);
+
 	if (len <= 0) {
 		if (len == 0 || errno != EINTR) {
 			/* This will also get hit in the case of EAGAIN. The only
@@ -650,12 +655,22 @@
 			in which case it can be treated the same as EOF */
 			close_chan_fd(channel, fd, SHUT_RD);
 		}
-		ses.writepayload->len = ses.writepayload->pos = 0;
+		buf_setpos(ses.writepayload, 0);
+		buf_setlen(ses.writepayload, 0);
 		TRACE(("leave send_msg_channel_data: len %d read err %d or EOF for fd %d", 
 					len, errno, fd))
 		return;
 	}
 
+	if (channel->read_mangler) {
+		channel->read_mangler(channel, buf_getwriteptr(ses.writepayload, len), &len);
+		if (len == 0) {
+			buf_setpos(ses.writepayload, 0);
+			buf_setlen(ses.writepayload, 0);
+			return;
+		}
+	}
+
 	TRACE(("send_msg_channel_data: len %d fd %d", len, fd))
 	buf_incrwritepos(ses.writepayload, len);
 	/* ... real size here */