ifconfig-ifdown.patch

--- kinit/ipconfig/main.c.fix8	2013-05-26 00:00:35.912995570 +0400
+++ kinit/ipconfig/main.c	2013-05-26 00:37:18.485686633 +0400
@@ -29,8 +29,9 @@ static char do_not_config;
 static unsigned int default_caps = CAP_DHCP | CAP_BOOTP | CAP_RARP;
 static int loop_timeout = -1;
 static int configured;
 static int bringup_first = 0;
+static int bringdown_flag = 0;
 static int do_readonly = 0;
 static int do_quiet = 0;
 
 /* DHCP vendor class identifier */
@@ -779,9 +780,9 @@ int ipconfig_main(int argc, char *argv[]
 	/* Default vendor identifier */
 	set_vendor_identifier("Linux ipconfig");
 
 	do {
-		c = getopt(argc, argv, "c:d:i:onp:rt:q");
+		c = getopt(argc, argv, "c:D:d:i:onp:rt:q");
 		if (c == EOF)
 			break;
 
 		switch (c) {
@@ -822,8 +823,14 @@ int ipconfig_main(int argc, char *argv[]
 			break;
 		case 'q':
 			do_quiet = 1;
 			break;
+		case 'D':
+			bringdown_flag = 1;
+			dev = add_device(optarg);
+			if (dev)
+				netdev_down(dev);
+			break;
 		case 'd':
 			dev = add_device(optarg);
 			if (dev)
 				bringup_device(dev);
@@ -834,8 +841,11 @@ int ipconfig_main(int argc, char *argv[]
 			longjmp(abort_buf, 1);
 		}
 	} while (1);
 
+	if (bringdown_flag)
+		return err;
+
 	for (c = optind; c < argc; c++) {
 		dev = add_device(argv[c]);
 		if (dev)
 			bringup_device(dev);