commands: introduce CMD_HOST

... because NET_RESOLV can be used alone to turn on the functionality
of resolv().

Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

commands/Kconfig

@@ -1043,6 +1043,15 @@ if NET
 
 menu "Network"
 
+config CMD_HOST
+	tristate
+	select NET_RESOLV
+	prompt "host"
+	help
+	  Resolv a hostname.
+
+	  Usage: host DESTINATION
+
 config CMD_MIITOOL
 	tristate
 	depends on PHYLIB

net/dns.c

@@ -241,6 +241,7 @@ IPaddr_t resolv(char *host)
 	return dns_ip;
 }
 
+#ifdef CONFIG_CMD_HOST
 static int do_host(int argc, char *argv[])
 {
 	IPaddr_t ip;
@@ -266,4 +267,4 @@ BAREBOX_CMD_START(host)
 	BAREBOX_CMD_OPTS("HOSTNAME")
 	BAREBOX_CMD_GROUP(CMD_GRP_NET)
 BAREBOX_CMD_END
-
+#endif