From cdb0b652ddd6bfbc4d83e21453b3b4137b887e18 Mon Sep 17 00:00:00 2001
From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Fri, 26 Sep 2008 09:34:15 +0000
Subject: [PATCH] dhcpc: treat "discover...select...discover..." loop the same
 way  as "discover...discover...discover..."

---
 networking/udhcp/dhcpc.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index 92ebe3676..4cc42eae0 100644
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -363,6 +363,7 @@ int udhcpc_main(int argc UNUSED_PARAM, char **argv)
 					packet_num++;
 					continue;
 				}
+ leasefail:
 				udhcp_run_script(NULL, "leasefail");
 #if BB_MMU /* -b is not supported on NOMMU */
 				if (opt & OPT_b) { /* background if no lease */
@@ -399,6 +400,11 @@ int udhcpc_main(int argc UNUSED_PARAM, char **argv)
 					udhcp_run_script(NULL, "deconfig");
 				change_listen_mode(LISTEN_RAW);
 				state = INIT_SELECTING;
+				/* "discover...select...discover..." loops
+				 * were seen in the wild. Treat then similarly
+				 * to "no response to discover" case */
+				if (state == REQUESTING)
+					goto leasefail;
 				timeout = 0;
 				packet_num = 0;
 				continue;