From 846a368fb0b7b4de0940350542bb0af30dd7c5da Mon Sep 17 00:00:00 2001
From: Kalle Olavi Niemitalo <kon@iki.fi>
Date: Mon, 5 Mar 2007 23:53:26 +0200
Subject: [PATCH] smb: Assert that there is room for a terminating null.

Corresponds to FSP commit 23b4b912ac7486ad969b02bf195ce30ae0eff7f6.
---
 src/protocol/smb/smb2.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/protocol/smb/smb2.c b/src/protocol/smb/smb2.c
index 692f8caf..8d58f1f2 100644
--- a/src/protocol/smb/smb2.c
+++ b/src/protocol/smb/smb2.c
@@ -376,6 +376,15 @@ smb_got_error(struct socket *socket, struct read_buffer *rb)
 		return;
 	}
 
+	/* There should be free space in the buffer, because
+	 * @alloc_read_buffer allocated several kibibytes, and the
+	 * child process wrote only an integer and a newline to the
+	 * pipe.  */
+	assert(rb->freespace >= 1);
+	if_assert_failed {
+		abort_connection(conn, S_INTERNAL);
+		return;
+	}
 	rb->data[len] = '\0';
 	error = atoi(rb->data);
 	kill_buffer_data(rb, len);