From 68353ca6b195e353870ce490d969da3b29771344 Mon Sep 17 00:00:00 2001
From: Andrew Tonner <rakslice@gmail.com>
Date: Fri, 20 Jan 2017 02:05:55 -0800
Subject: [PATCH] fix for null deref in slirp soread when the so doesn't have a
 tcpcb yet

---
 BasiliskII/src/slirp/socket.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/BasiliskII/src/slirp/socket.c b/BasiliskII/src/slirp/socket.c
index 42ba31b2..5572a196 100644
--- a/BasiliskII/src/slirp/socket.c
+++ b/BasiliskII/src/slirp/socket.c
@@ -108,6 +108,10 @@ soread(so)
 	struct sbuf *sb = &so->so_snd;
 	u_int len = sb->sb_datalen - sb->sb_cc;
 	struct iovec iov[2];
+
+	if (!so->so_tcpcb) {
+		so->so_tcpcb = tcp_newtcpcb(so); // but how did we get in this state? should we just default mss for it?
+	}
 	u_int mss = so->so_tcpcb->t_maxseg;
 	
 	DEBUG_CALL("soread");