More (unsigned char) casts for ctype functions.

Pointed out by Michael McConville

diff --git a/usr.sbin/relayd/relayd.c b/usr.sbin/relayd/relayd.c
index c881bab..9fac120 100644 (file)
--- a/usr.sbin/relayd/relayd.c
+++ b/usr.sbin/relayd/relayd.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: relayd.c,v 1.143 2015/07/29 20:55:43 benno Exp $      */
+/*     $OpenBSD: relayd.c,v 1.144 2015/10/14 07:58:14 reyk Exp $       */
 
 /*
  * Copyright (c) 2007 - 2014 Reyk Floeter <reyk@openbsd.org>
@@ -1366,7 +1366,7 @@ canonicalize_host(const char *host, char *name, size_t len)
        for (i = j = 0; i < plen; i++) {
                if (j >= (len - 1))
                        goto fail;
-               c = tolower(host[i]);
+               c = tolower((unsigned char)host[i]);
                if ((c == '.') && (j == 0 || name[j - 1] == '.'))
                        continue;
                name[j++] = c;
@@ -1497,7 +1497,8 @@ get_string(u_int8_t *ptr, size_t len)
        char    *str;
 
        for (i = 0; i < len; i++)
-               if (!(isprint(ptr[i]) || isspace(ptr[i])))
+               if (!(isprint((unsigned char)ptr[i]) ||
+                   isspace((unsigned char)ptr[i])))
                        break;
 
        if ((str = calloc(1, i + 1)) == NULL)