From 104c29e4daa2d5cb479e24e8d65ef31881f413fd Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Sun, 20 Mar 2011 09:54:38 +0900
Subject: [PATCH] Avoid a segfault when the called function is invalid.

This is most likely to occur when dumping code from qfo files with external
functions.
---
 libs/gamecode/engine/pr_debug.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libs/gamecode/engine/pr_debug.c b/libs/gamecode/engine/pr_debug.c
index 8d7d34daf..7ee09bc0d 100644
--- a/libs/gamecode/engine/pr_debug.c
+++ b/libs/gamecode/engine/pr_debug.c
@@ -877,6 +877,9 @@ PR_PrintStatement (progs_t *pr, dstatement_t *s, int contents)
 						break;
 					case 'F':
 						str = global_string (pr, opval, optype, contents & 1);
+						if (G_FUNCTION (pr, opval) >= 0
+							&& G_FUNCTION (pr, opval)
+								< pr->progs->numfunctions)
 						call_func = pr->pr_functions + G_FUNCTION (pr, opval);
 						break;
 					case 'P':