busybox: squashed commit of merging cm-12.1

With fixes to LOCAL_C_INCLUDES for libsepol in M and fixed
some missing includes to enable building for 64 bit devices

Conflicts:
	Android.mk
	android/libc/arch-x86/syscalls/swapoff.S
	android/libc/arch-x86/syscalls/swapon.S
	android/libc/arch-x86/syscalls/sysinfo.S
	android/librpc/pmap_rmt.c
	android/reboot.c
	include-full/copy-current.sh
	include-minimal/copy-current.sh
	include/platform.h
	networking/interface.c
	networking/nslookup.c

Change-Id: If6092fa87f3d21190db1af4f70daa150eb462660
diff --git a/networking/arp.c b/networking/arp.c
index 1c99987..e79b1b6 100644
--- a/networking/arp.c
+++ b/networking/arp.c
@@ -22,12 +22,12 @@
 //usage:#define arp_full_usage "\n\n"
 //usage:       "Manipulate ARP cache\n"
 //usage:       "\n	-a		Display (all) hosts"
-//usage:       "\n	-s		Set new ARP entry"
-//usage:       "\n	-d		Delete a specified entry"
+//usage:       "\n	-d		Delete ARP entry"
+//usage:       "\n	-s		Set new entry"
 //usage:       "\n	-v		Verbose"
 //usage:       "\n	-n		Don't resolve names"
 //usage:       "\n	-i IF		Network interface"
-//usage:       "\n	-D		Read <hwaddr> from given device"
+//usage:       "\n	-D		Read HWADDR from IFACE"
 //usage:       "\n	-A,-p AF	Protocol family"
 //usage:       "\n	-H HWTYPE	Hardware address type"
 
@@ -213,16 +213,15 @@
 }
 
 /* Get the hardware address to a specified interface name */
-static void arp_getdevhw(char *ifname, struct sockaddr *sa,
-						const struct hwtype *hwt)
+static void arp_getdevhw(char *ifname, struct sockaddr *sa)
 {
 	struct ifreq ifr;
 	const struct hwtype *xhw;
 
 	strcpy(ifr.ifr_name, ifname);
 	ioctl_or_perror_and_die(sockfd, SIOCGIFHWADDR, &ifr,
-					"cant get HW-Address for '%s'", ifname);
-	if (hwt && (ifr.ifr_hwaddr.sa_family != hw->type)) {
+					"can't get HW-Address for '%s'", ifname);
+	if (hw_set && (ifr.ifr_hwaddr.sa_family != hw->type)) {
 		bb_error_msg_and_die("protocol type mismatch");
 	}
 	memcpy(sa, &(ifr.ifr_hwaddr), sizeof(struct sockaddr));
@@ -233,8 +232,8 @@
 			xhw = get_hwntype(-1);
 		}
 		bb_error_msg("device '%s' has HW address %s '%s'",
-					ifname, xhw->name,
-					xhw->print((unsigned char *) &ifr.ifr_hwaddr.sa_data));
+				ifname, xhw->name,
+				xhw->print((unsigned char *) &ifr.ifr_hwaddr.sa_data));
 	}
 }
 
@@ -261,7 +260,7 @@
 		bb_error_msg_and_die("need hardware address");
 	}
 	if (option_mask32 & ARP_OPT_D) {
-		arp_getdevhw(*args++, &req.arp_ha, hw_set ? hw : NULL);
+		arp_getdevhw(*args++, &req.arp_ha);
 	} else {
 		if (hw->input(*args++, &req.arp_ha) < 0) {
 			bb_error_msg_and_die("invalid hardware address");
@@ -460,12 +459,12 @@
 		arp_disp(hostname, ip, type, flags, hwa, mask, dev);
 	}
 	if (option_mask32 & ARP_OPT_v)
-		printf("Entries: %d\tSkipped: %d\tFound: %d\n",
+		printf("Entries: %u\tSkipped: %u\tFound: %u\n",
 				entries, entries - shown, shown);
 
 	if (!shown) {
 		if (hw_set || host || device[0])
-			printf("No match found in %d entries\n", entries);
+			printf("No match found in %u entries\n", entries);
 	}
 	if (ENABLE_FEATURE_CLEAN_UP) {
 		free((char*)host);
@@ -477,28 +476,33 @@
 int arp_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int arp_main(int argc UNUSED_PARAM, char **argv)
 {
-	const char *hw_type = "ether";
+	const char *hw_type;
 	const char *protocol;
 	unsigned opts;
 
 	INIT_G();
 
 	xmove_fd(xsocket(AF_INET, SOCK_DGRAM, 0), sockfd);
+
 	ap = get_aftype(DFLT_AF);
-	if (!ap)
-		bb_error_msg_and_die("%s: %s not supported", DFLT_AF, "address family");
+	/* Defaults are always supported */
+	//if (!ap)
+	//	bb_error_msg_and_die("%s: %s not supported", DFLT_AF, "address family");
+	hw = get_hwtype(DFLT_HW);
+	//if (!hw)
+	//	bb_error_msg_and_die("%s: %s not supported", DFLT_HW, "hardware type");
 
 	opts = getopt32(argv, "A:p:H:t:i:adnDsv", &protocol, &protocol,
 				 &hw_type, &hw_type, &device);
 	argv += optind;
 	if (opts & (ARP_OPT_A | ARP_OPT_p)) {
 		ap = get_aftype(protocol);
-		if (ap == NULL)
+		if (!ap)
 			bb_error_msg_and_die("%s: unknown %s", protocol, "address family");
 	}
-	if (opts & (ARP_OPT_A | ARP_OPT_p)) {
+	if (opts & (ARP_OPT_H | ARP_OPT_t)) {
 		hw = get_hwtype(hw_type);
-		if (hw == NULL)
+		if (!hw)
 			bb_error_msg_and_die("%s: unknown %s", hw_type, "hardware type");
 		hw_set = 1;
 	}
@@ -507,14 +511,6 @@
 	if (ap->af != AF_INET) {
 		bb_error_msg_and_die("%s: kernel only supports 'inet'", ap->name);
 	}
-
-	/* If no hw type specified get default */
-	if (!hw) {
-		hw = get_hwtype(DFLT_HW);
-		if (!hw)
-			bb_error_msg_and_die("%s: %s not supported", DFLT_HW, "hardware type");
-	}
-
 	if (hw->alen <= 0) {
 		bb_error_msg_and_die("%s: %s without ARP support",
 				hw->name, "hardware type");
@@ -528,6 +524,7 @@
 			return arp_set(argv);
 		return arp_del(argv);
 	}
+
 	//if (opts & ARP_OPT_a) - default
 	return arp_show(argv[0]);
 }