[src/trunk]: src/sys document that we depend on the option numbers matching.

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/23001175f35b
branches:  trunk
changeset: 803104:23001175f35b
user:      christos <christos%NetBSD.org@localhost>
date:      Sun Oct 12 19:02:18 2014 +0000

description:
document that we depend on the option numbers matching.

diffstat:

 sys/netinet/in.h   |  3 ++-
 sys/netinet6/in6.h |  3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diffs (34 lines):

diff -r f1eacc75ede7 -r 23001175f35b sys/netinet/in.h
--- a/sys/netinet/in.h  Sun Oct 12 19:00:21 2014 +0000
+++ b/sys/netinet/in.h  Sun Oct 12 19:02:18 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: in.h,v 1.92 2014/06/05 23:48:16 rmind Exp $    */
+/*     $NetBSD: in.h,v 1.93 2014/10/12 19:02:18 christos Exp $ */
 
 /*
  * Copyright (c) 1982, 1986, 1990, 1993
@@ -276,6 +276,7 @@
 #define        IP_MULTICAST_IF         9    /* in_addr; set/get IP multicast i/f  */
 #define        IP_MULTICAST_TTL        10   /* u_char; set/get IP multicast ttl */
 #define        IP_MULTICAST_LOOP       11   /* u_char; set/get IP multicast loopback */
+/* The add and drop membership option numbers need to match with the v6 ones */
 #define        IP_ADD_MEMBERSHIP       12   /* ip_mreq; add an IP group membership */
 #define        IP_DROP_MEMBERSHIP      13   /* ip_mreq; drop an IP group membership */
 #define        IP_PORTALGO             18   /* int; port selection algo (rfc6056) */
diff -r f1eacc75ede7 -r 23001175f35b sys/netinet6/in6.h
--- a/sys/netinet6/in6.h        Sun Oct 12 19:00:21 2014 +0000
+++ b/sys/netinet6/in6.h        Sun Oct 12 19:02:18 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: in6.h,v 1.78 2014/06/05 23:48:16 rmind Exp $   */
+/*     $NetBSD: in6.h,v 1.79 2014/10/12 19:02:18 christos Exp $        */
 /*     $KAME: in6.h,v 1.83 2001/03/29 02:55:07 jinmei Exp $    */
 
 /*
@@ -383,6 +383,7 @@
 #define IPV6_MULTICAST_IF      9  /* u_int; set/get IP6 multicast i/f  */
 #define IPV6_MULTICAST_HOPS    10 /* int; set/get IP6 multicast hops */
 #define IPV6_MULTICAST_LOOP    11 /* u_int; set/get IP6 multicast loopback */
+/* The join and leave membership option numbers need to match with the v4 ones */
 #define IPV6_JOIN_GROUP                12 /* ip6_mreq; join a group membership */
 #define IPV6_LEAVE_GROUP       13 /* ip6_mreq; leave a group membership */
 #define IPV6_PORTRANGE         14 /* int; range to choose for unspec port */