===================================================================
RCS file: /cvs/mandoc/chars.c,v
retrieving revision 1.41
retrieving revision 1.43
diff -u -p -r1.41 -r1.43
--- mandoc/chars.c	2011/05/14 17:54:42	1.41
+++ mandoc/chars.c	2011/05/15 22:29:50	1.43
@@ -1,4 +1,4 @@
-/*	$Id: chars.c,v 1.41 2011/05/14 17:54:42 kristaps Exp $ */
+/*	$Id: chars.c,v 1.43 2011/05/15 22:29:50 kristaps Exp $ */
 /*
  * Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
@@ -26,6 +26,7 @@
 #include <string.h>
 
 #include "mandoc.h"
+#include "libmandoc.h"
 
 #define	PRINT_HI	 126
 #define	PRINT_LO	 32
@@ -141,17 +142,16 @@ mchars_res2cp(struct mchars *arg, const char *p, size_
  * This can only be a printable character (i.e., alnum, punct, space) so
  * prevent the character from ruining our state (backspace, newline, and
  * so on).
+ * If the character is illegal, returns '\0'.
  */
 char
 mchars_num2char(const char *p, size_t sz)
 {
 	int		  i;
 
-	if (sz > 3)
+	if ((i = mandoc_strntou(p, sz, 10)) < 0)
 		return('\0');
 
-	i = atoi(p);
-	/* LINTED */
 	return(isprint(i) ? i : '\0');
 }