From: Thomas Debesse <dev@illwieckz.net>
Date: Fri, 27 Mar 2020 00:52:28 +0000 (+0100)
Subject: q3map2: fix segfault when missing bspfile arg on light stage
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=d0ddc5a3a4e1de4436c2c0d2650a9cc6f4643f10;p=xonotic%2Fnetradiant.git

q3map2: fix segfault when missing bspfile arg on light stage
---

diff --git a/tools/quake3/q3map2/light.c b/tools/quake3/q3map2/light.c
index e43906e0..79098148 100644
--- a/tools/quake3/q3map2/light.c
+++ b/tools/quake3/q3map2/light.c
@@ -2981,6 +2981,11 @@ int LightMain( int argc, char **argv ){
 		Sys_Printf( "Restricted lightmap searching enabled - block size adjusted to %d\n", lightmapSearchBlockSize );
 	}
 
+	/* arg checking */
+	if ( i != ( argc - 1 ) ) {
+		Error( "usage: q3map -light [options] <bspfile>" );
+	}
+
 	strcpy( source, ExpandArg( argv[ i ] ) );
 	StripExtension( source );
 	DefaultExtension( source, ".map" );