diff -Naur dhcpcd-3.0.17.orig/dhcpcd.c dhcpcd-3.0.17/dhcpcd.c
--- dhcpcd-3.0.17.orig/dhcpcd.c	2007-05-14 14:23:02 +0400
+++ dhcpcd-3.0.17/dhcpcd.c	2007-05-14 14:25:01 +0400
@@ -127,6 +127,7 @@
         {"fqdn",        optional_argument,  NULL, 'F'},
         {"nogateway",   no_argument,        NULL, 'G'},
         {"sethostname", no_argument,        NULL, 'H'},
+        {"setdomainname", no_argument,      NULL, 'D'},
         {"clientid",    required_argument,  NULL, 'I'},
         {"nomtu",       no_argument,        NULL, 'M'},
         {"nontp",       no_argument,        NULL, 'N'},
@@ -164,7 +165,7 @@
 		memset (options.hostname, 0, sizeof (options.hostname));
 	options.timeout = DEFAULT_TIMEOUT;
 
-	while ((ch = getopt_long(argc, argv, "ac:dh:i:kl:m:nps:t:u:F:GHI:MNRY", longopts,
+	while ((ch = getopt_long(argc, argv, "ac:dh:i:kl:m:nps:t:u:F:GHDI:MNRY", longopts,
 							 &option_index)) != -1)
 		switch (ch) {
 			case 0:
@@ -275,6 +276,8 @@
 			case 'H':
 				options.dohostname = true;
 				break;
+			case 'D':
+				break;
 			case 'I':
 				if (strlen (optarg) > CLIENT_ID_MAX_LEN) {
 					logger (LOG_ERR, "`%s' is too long for ClientID, max is %d",