From e82199121f643cbe40ad3f3c3a6c0c2611794323 Mon Sep 17 00:00:00 2001
From: Huw D M Davies <daviesh@abacus.physics.ox.ac.uk>
Date: Thu, 10 Dec 1998 08:26:23 +0000
Subject: [PATCH] Sanity check on font size.

---
 graphics/x11drv/xfont.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/graphics/x11drv/xfont.c b/graphics/x11drv/xfont.c
index 46132b35840..f54ac79f463 100644
--- a/graphics/x11drv/xfont.c
+++ b/graphics/x11drv/xfont.c
@@ -32,6 +32,8 @@
 #define MAX_FONT_FAMILIES	128
 #define MAX_LFD_LENGTH		256
 
+#define MAX_FONT_SIZE           5000    /* Max size in pixels */
+
 #define REMOVE_SUBSETS		1
 #define UNMARK_SUBSETS		0
 
@@ -2225,6 +2227,13 @@ static X_PHYSFONT XFONT_RealizeFont( LPLOGFONT16 plf )
 			     plf->lfCharSet, plf->lfFaceName, plf->lfHeight, 
 			     plf->lfWeight, (plf->lfItalic) ? "Italic" : "" );
 
+		if(abs(plf->lfHeight) > MAX_FONT_SIZE) {
+		    ERR(font,
+	  "plf->lfHeight = %d, this is probably not right. Setting to 100\n", 
+			plf->lfHeight);
+		    plf->lfHeight = 100;
+		}
+
 		XFONT_MatchDeviceFont( fontList, &fm );
 
 		pfo->fr = fm.pfr;