diff --git a/networking/udhcp/arpping.h b/networking/udhcp/arpping.h
index 6f27d9f..30959ca 100644
--- a/networking/udhcp/arpping.h
+++ b/networking/udhcp/arpping.h
@@ -27,7 +27,7 @@
 	uint8_t  tHaddr[6];			/* target's hardware address */
 	uint8_t  tInaddr[4];			/* target's IP address */
 	uint8_t  pad[18];			/* pad for min. Ethernet payload (60 bytes) */
-} __attribute__ ((packed));
+} ATTRIBUTE_PACKED;
 
 /* function prototypes */
 int arpping(uint32_t yiaddr, uint32_t ip, uint8_t *arp, char *interface);
diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index d5c69db..c4277e3 100644
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -4,19 +4,7 @@
  *
  * Russ Dill <Russ.Dill@asu.edu> July 2001
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
  */
 
 #include <sys/time.h>
@@ -74,7 +62,7 @@
 };
 
 #ifndef IN_BUSYBOX
-static void __attribute__ ((noreturn)) show_usage(void)
+static void ATTRIBUTE_NORETURN show_usage(void)
 {
 	printf(
 "Usage: udhcpc [OPTIONS]\n\n"
@@ -101,7 +89,7 @@
 }
 #else
 #define show_usage bb_show_usage
-extern void show_usage(void) __attribute__ ((noreturn));
+extern void show_usage(void) ATTRIBUTE_NORETURN;
 #endif
 
 
diff --git a/networking/udhcp/dumpleases.c b/networking/udhcp/dumpleases.c
index a9036df..ca5c605 100644
--- a/networking/udhcp/dumpleases.c
+++ b/networking/udhcp/dumpleases.c
@@ -1,3 +1,7 @@
+/* vi: set sw=4 ts=4: */
+/*
+   Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ */
 #include <fcntl.h>
 #include <string.h>
 #include <stdlib.h>
@@ -21,7 +25,7 @@
 
 
 #ifndef IN_BUSYBOX
-static void __attribute__ ((noreturn)) show_usage(void)
+static void ATTRIBUTE_NORETURN show_usage(void)
 {
 	printf(
 "Usage: dumpleases -f <file> -[r|a]\n\n"