X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/a7dc44d27d019f57d9ce484feb8d1a363464102b..32f761755e2cfee243a1513c9ea9871586463fa6:/socket.c

diff --git a/socket.c b/socket.c
index 6a13b04a..bb7acc06 100644
--- a/socket.c
+++ b/socket.c
@@ -70,7 +70,7 @@ static int establish_proxy_connection(int fd, char *host, int port)
 			buffer);
 		return -1;
 	}
-	for (cp = &buffer[5]; isdigit((int) *cp) || (*cp == '.'); cp++)
+	for (cp = &buffer[5]; isdigit(* (unsigned char *) cp) || (*cp == '.'); cp++)
 		;
 	while (*cp == ' ')
 		cp++;