More sensible check for 7bit ASCII

Always true condition reported by -Wextra -pendatic.

diff --git a/uip/send.c b/uip/send.c
index bab1699..df81340 100644 (file)
--- a/uip/send.c
+++ b/uip/send.c
@@ -322,10 +322,10 @@ sendsbr(char **vec, int vecp, char *drft, struct stat *st)
 static int
 contains_non_ascii(char *str)
 {
-       char *cp;
+       unsigned char *cp;
 
        for (cp = str; *cp; cp++) {
-               if (*cp > 127 || *cp < 0) {
+               if (*cp > 127) {
                        return 1;
                }
        }