$NetBSD: patch-ak,v 1.3 2014/06/29 03:24:33 dholland Exp $

- use <ctype.h> correctly
- avoid string overflow

--- misc.c.orig	1991-07-16 15:52:54.000000000 +0000
+++ misc.c
@@ -41,7 +41,7 @@ char *str;
    char *p;
    retval = 0L;
    p = str; /* save for error message */
-   while (isdigit(*str)) {
+   while (isdigit((unsigned char)*str)) {
       retval = retval * 10L + (*str-'0');
       str++;
    }
@@ -135,11 +135,17 @@ if available, else the short filename is
 char *fullpath (direntry)
 struct direntry *direntry;
 {
-	static char result[PATHSIZE];
+	static char result[PATHSIZE+LFNAMESIZE+12]; /* Room for enough space.*/
 	combine (result,
 				direntry->dirlen != 0 ? direntry->dirname : "", 
 				(direntry->namlen != 0) ? direntry->lfname : direntry->fname
 			  );
+
+	if (strlen (result) >= PATHSIZE) {
+		prterror ('f', "Combined dirname and filename too long!\n");
+		*result = '\0';
+	}
+
 	return (result);
 }