Patch by Denis Vlasenko to add forground support.
diff --git a/patches/udhcpd_foreground.diff b/patches/udhcpd_foreground.diff
new file mode 100644
index 0000000..9f1e3b9
--- /dev/null
+++ b/patches/udhcpd_foreground.diff
@@ -0,0 +1,33 @@
+Index: ./networking/udhcp/dhcpd.c
+===================================================================
+RCS file: /var/cvs/busybox/networking/udhcp/dhcpd.c,v
+retrieving revision 1.5
+diff -u -r1.5 dhcpd.c
+--- a/./networking/udhcp/dhcpd.c 30 Jan 2004 23:45:12 -0000 1.5
++++ b/./networking/udhcp/dhcpd.c 5 Mar 2004 13:09:05 -0000
+@@ -70,6 +70,13 @@
+ struct dhcpOfferedAddr *lease;
+ int max_sock;
+ unsigned long num_ips;
++ int daemonize = 1;
++
++ while (strcmp(argv[1],"-f")==0 || strcmp(argv[1],"--foreground")==0) {
++ daemonize = 0;
++ argv++;
++ argc--;
++ }
+
+ memset(&server_config, 0, sizeof(struct server_config_t));
+ read_config(argc < 2 ? DHCPD_CONF_FILE : argv[1]);
+@@ -99,9 +106,8 @@
+ &server_config.server, server_config.arp) < 0)
+ return 1;
+
+-#ifndef UDHCP_DEBUG
+- background(server_config.pidfile); /* hold lock during fork. */
+-#endif
++ if(daemonize)
++ background(server_config.pidfile); /* hold lock during fork. */
+
+ /* Setup the signal pipe */
+ udhcp_sp_setup();