X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;ds=sidebyside;f=backend%2Fdvi%2Fmdvi-lib%2Fpk.c;h=a91161348fe803d175e22820deacafb076884ac2;hb=c935a25cdd0c9791158b1252835142472152d6cc;hp=a5791869af1f36b9e0dd1ba890ce1cf2858dba85;hpb=19a00ed1cd086dcca4b6bfeb84e0b1488b2e3089;p=evince.git

diff --git a/backend/dvi/mdvi-lib/pk.c b/backend/dvi/mdvi-lib/pk.c
index a5791869..a9116134 100644
--- a/backend/dvi/mdvi-lib/pk.c
+++ b/backend/dvi/mdvi-lib/pk.c
@@ -328,13 +328,14 @@ static int pk_load_font(DviParams *unused, DviFont *font)
 {
 	int	i;
 	int	flag_byte;
-	int	loc, hic, maxch;
+	int	hic, maxch;
 	Int32	checksum;
 	FILE	*p;
 #ifndef NODEBUG
 	char	s[256];
 #endif
 	long	alpha, beta, z;
+	unsigned int loc;
 
 	font->chars = xnalloc(DviFontChar, 256);
 	p = font->in;
@@ -469,6 +470,15 @@ static int pk_load_font(DviParams *unused, DviFont *font)
 			}
 			if(feof(p))
 				break;
+
+			/* Although the PK format support bigger char codes,
+                         * XeTeX and other extended TeX engines support charcodes up to
+                         * 65536, while normal TeX engine supports only charcode up to 255.*/
+			if (cc < 0 || cc > 65536) {
+				mdvi_error (_("%s: unexpected charcode (%d)\n"),
+					    font->fontname,cc);
+				goto error;
+			} 
 			if(cc < loc)
 				loc = cc;
 			if(cc > hic)