From deabacdf91c6d1c3cfcdb4cd06780807193de81d Mon Sep 17 00:00:00 2001
From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Sun, 30 Sep 2007 17:55:43 +0000
Subject: [PATCH] move udhcp_{client/server}_config to common_bufsiz1

udhcp_run_script                                    1108    1151     +43
init_packet                                          209     210      +1
udhcpc_main                                         2395    2393      -2
udhcp_client_config                                   56       -     -56
udhcp_server_config                                   88       -     -88
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 2/1 up/down: 44/-146)          Total: -102 bytes
   text    data     bss     dec     hex filename
 771326    1029    9696  782051   beee3 busybox_old
 771383    1029    9552  781964   bee8c busybox_unstripped
---
 networking/udhcp/common.h | 4 ----
 networking/udhcp/dhcpc.c  | 2 +-
 networking/udhcp/dhcpc.h  | 2 +-
 networking/udhcp/dhcpd.c  | 2 +-
 networking/udhcp/dhcpd.h  | 3 ++-
 5 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/networking/udhcp/common.h b/networking/udhcp/common.h
index 33417af09..4864c8565 100644
--- a/networking/udhcp/common.h
+++ b/networking/udhcp/common.h
@@ -73,10 +73,6 @@ void udhcp_run_script(struct dhcpMessage *packet, const char *name);
 /* from socket.h */
 #define listen_socket		udhcp_listen_socket
 #define read_interface		udhcp_read_interface
-/* from dhcpc.h */
-#define client_config		udhcp_client_config
-/* from dhcpd.h */
-#define server_config		udhcp_server_config
 
 void udhcp_sp_setup(void);
 int udhcp_sp_fd_set(fd_set *rfds, int extra_fd);
diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index 961a1712a..ca478b3c5 100644
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -37,7 +37,7 @@ static smallint listen_mode;
 
 static smallint state;
 
-struct client_config_t client_config;
+/* struct client_config_t client_config is in bb_common_bufsiz1 */
 
 
 /* just a little helper */
diff --git a/networking/udhcp/dhcpc.h b/networking/udhcp/dhcpc.h
index 20f4e52b8..8da1dd8e1 100644
--- a/networking/udhcp/dhcpc.h
+++ b/networking/udhcp/dhcpc.h
@@ -33,7 +33,7 @@ struct client_config_t {
 	uint8_t arp[6];                 /* Our arp address */
 };
 
-extern struct client_config_t client_config;
+#define client_config (*(struct client_config_t*)&bb_common_bufsiz1)
 
 
 /*** clientpacket.h ***/
diff --git a/networking/udhcp/dhcpd.c b/networking/udhcp/dhcpd.c
index e722833e1..3466312d1 100644
--- a/networking/udhcp/dhcpd.c
+++ b/networking/udhcp/dhcpd.c
@@ -18,7 +18,7 @@
 
 /* globals */
 struct dhcpOfferedAddr *leases;
-struct server_config_t server_config;
+/* struct server_config_t server_config is in bb_common_bufsiz1 */
 
 
 int udhcpd_main(int argc, char **argv);
diff --git a/networking/udhcp/dhcpd.h b/networking/udhcp/dhcpd.h
index fc6b1d6ab..28106d306 100644
--- a/networking/udhcp/dhcpd.h
+++ b/networking/udhcp/dhcpd.h
@@ -54,7 +54,8 @@ struct server_config_t {
 	struct static_lease *static_leases; /* List of ip/mac pairs to assign static leases */
 };
 
-extern struct server_config_t server_config;
+#define server_config (*(struct server_config_t*)&bb_common_bufsiz1)
+
 extern struct dhcpOfferedAddr *leases;