--- /dev/null
+From 4b7f3716b8678c9ff423445f41e6ffb47fd295cd Mon Sep 17 00:00:00 2001
+From: Mike Frysinger <vapier@gentoo.org>
+Date: Sat, 26 Jan 2013 17:40:24 -0500
+Subject: [PATCH] libc/sysdeps: sync bits/in.h with glibc
+
+URL: https://bugs.busybox.net/show_bug.cgi?id=5888
+Signed-off-by: Mike Frysinger <vapier@gentoo.org>
+---
+ libc/sysdeps/linux/common/bits/in.h | 61 +++++++++++++++++++++++------------
+ 1 file changed, 41 insertions(+), 20 deletions(-)
+
+diff --git a/libc/sysdeps/linux/common/bits/in.h b/libc/sysdeps/linux/common/bits/in.h
+index 1f2b817..d9c5e2b 100644
+--- a/libc/sysdeps/linux/common/bits/in.h
++++ b/libc/sysdeps/linux/common/bits/in.h
+@@ -1,4 +1,4 @@
+-/* Copyright (C) 1991-1999, 2000, 2004 Free Software Foundation, Inc.
++/* Copyright (C) 1991-2013 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+@@ -43,31 +43,49 @@
+ #define IP_ADD_SOURCE_MEMBERSHIP 39 /* ip_mreq_source: join source group */
+ #define IP_DROP_SOURCE_MEMBERSHIP 40 /* ip_mreq_source: leave source group */
+ #define IP_MSFILTER 41
+-#define MCAST_JOIN_GROUP 42 /* group_req: join any-source group */
+-#define MCAST_BLOCK_SOURCE 43 /* group_source_req: block from given group */
+-#define MCAST_UNBLOCK_SOURCE 44 /* group_source_req: unblock from given group*/
+-#define MCAST_LEAVE_GROUP 45 /* group_req: leave any-source group */
+-#define MCAST_JOIN_SOURCE_GROUP 46 /* group_source_req: join source-spec gr */
+-#define MCAST_LEAVE_SOURCE_GROUP 47 /* group_source_req: leave source-spec gr*/
+-#define MCAST_MSFILTER 48
+-
+-#define MCAST_EXCLUDE 0
+-#define MCAST_INCLUDE 1
+-
+-#define IP_ROUTER_ALERT 5 /* bool */
+-#define IP_PKTINFO 8 /* bool */
+-#define IP_PKTOPTIONS 9
+-#define IP_PMTUDISC 10 /* obsolete name? */
+-#define IP_MTU_DISCOVER 10 /* int; see below */
+-#define IP_RECVERR 11 /* bool */
+-#define IP_RECVTTL 12 /* bool */
+-#define IP_RECVTOS 13 /* bool */
++#if defined __USE_MISC || defined __USE_GNU
++# define MCAST_JOIN_GROUP 42 /* group_req: join any-source group */
++# define MCAST_BLOCK_SOURCE 43 /* group_source_req: block from given group */
++# define MCAST_UNBLOCK_SOURCE 44 /* group_source_req: unblock from given group*/
++# define MCAST_LEAVE_GROUP 45 /* group_req: leave any-source group */
++# define MCAST_JOIN_SOURCE_GROUP 46 /* group_source_req: join source-spec gr */
++# define MCAST_LEAVE_SOURCE_GROUP 47 /* group_source_req: leave source-spec gr*/
++# define MCAST_MSFILTER 48
++# define IP_MULTICAST_ALL 49
++# define IP_UNICAST_IF 50
++
++# define MCAST_EXCLUDE 0
++# define MCAST_INCLUDE 1
++#endif
++
++#define IP_ROUTER_ALERT 5 /* bool */
++#define IP_PKTINFO 8 /* bool */
++#define IP_PKTOPTIONS 9
++#define IP_PMTUDISC 10 /* obsolete name? */
++#define IP_MTU_DISCOVER 10 /* int; see below */
++#define IP_RECVERR 11 /* bool */
++#define IP_RECVTTL 12 /* bool */
++#define IP_RECVTOS 13 /* bool */
++#define IP_MTU 14 /* int */
++#define IP_FREEBIND 15
++#define IP_IPSEC_POLICY 16
++#define IP_XFRM_POLICY 17
++#define IP_PASSSEC 18
++#define IP_TRANSPARENT 19
++#define IP_MULTICAST_ALL 49 /* bool */
++
++/* TProxy original addresses */
++#define IP_ORIGDSTADDR 20
++#define IP_RECVORIGDSTADDR IP_ORIGDSTADDR
++
++#define IP_MINTTL 21
+
+
+ /* IP_MTU_DISCOVER arguments. */
+ #define IP_PMTUDISC_DONT 0 /* Never send DF frames. */
+ #define IP_PMTUDISC_WANT 1 /* Use per route hints. */
+ #define IP_PMTUDISC_DO 2 /* Always DF. */
++#define IP_PMTUDISC_PROBE 3 /* Ignore dst pmtu. */
+
+ /* To select the IP level. */
+ #define SOL_IP 0
+@@ -76,6 +94,7 @@
+ #define IP_DEFAULT_MULTICAST_LOOP 1
+ #define IP_MAX_MEMBERSHIPS 20
+
++#if defined __USE_MISC || defined __USE_GNU
+ /* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS.
+ The `ip_dst' field is used for the first-hop gateway when using a
+ source route (this gets put into the header proper). */
+@@ -100,6 +119,7 @@ struct in_pktinfo
+ struct in_addr ipi_spec_dst; /* Routing destination address */
+ struct in_addr ipi_addr; /* Header destination address */
+ };
++#endif
+
+ #ifdef __UCLIBC_HAS_IPV6__
+ /* Options for use with `getsockopt' and `setsockopt' at the IPv6 level.
+@@ -159,6 +179,7 @@ struct in_pktinfo
+ #define IPV6_PMTUDISC_DONT 0 /* Never send DF frames. */
+ #define IPV6_PMTUDISC_WANT 1 /* Use per route hints. */
+ #define IPV6_PMTUDISC_DO 2 /* Always DF. */
++#define IPV6_PMTUDISC_PROBE 3 /* Ignore dst pmtu. */
+
+ /* Socket level values for IPv6. */
+ #define SOL_IPV6 41
+--
+1.7.10.4
+