From: Joseph Myers <joseph@codesourcery.com>
Date: Thu, 5 Aug 2021 20:12:56 +0000 (+0000)
Subject: Add INADDR_DUMMY from Linux 5.13 to netinet/in.h
X-Git-Tag: glibc-2.35~601
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb89489636766532902d4a02a08dbb72efed4faf;p=thirdparty%2Fglibc.git

Add INADDR_DUMMY from Linux 5.13 to netinet/in.h

Linux 5.13 adds an INADDR_DUMMY definition; add a corresponding
definition to glibc's netinet/in.h.  (This isn't strictly a new kernel
interface, rather a value defined in RFC 7600.)

Tested for x86_64.
---

diff --git a/inet/netinet/in.h b/inet/netinet/in.h
index ed21690afb3..cee35efec9f 100644
--- a/inet/netinet/in.h
+++ b/inet/netinet/in.h
@@ -196,6 +196,9 @@ enum
 #define	INADDR_BROADCAST	((in_addr_t) 0xffffffff)
 /* Address indicating an error return.  */
 #define	INADDR_NONE		((in_addr_t) 0xffffffff)
+/* Dummy address for source of ICMPv6 errors converted to IPv4 (RFC
+   7600).  */
+#define	INADDR_DUMMY		((in_addr_t) 0xc0000008)
 
 /* Network number for local host loopback.  */
 #define	IN_LOOPBACKNET		127