change (mostly) int to socklen_t. GCC 4 doesn't like that int and
socklen_t are different signness.

Coverity CID 2432: Dereference before NULL check.

From Vernon Schryver:

Wolfgang Solfrank has explained the problem with router discovery
in `routed` in a way I can understand.

Let's assume that the configured preference of the interface is 5.
Thi

From Vernon Schryver:

Wolfgang Solfrank has explained the problem with router discovery
in `routed` in a way I can understand.

Let's assume that the configured preference of the interface is 5.
This gets converted to 0x80000005 through the use of the UNSIGN_PREF
macro. Later on, this value gets put into the PREF macro, which
compares it against the interface metric(s) (let's assume those
values to be 0 for now). Of course the 0x80000005, cast to int,
is much less than 0, so the clamping rule is triggered, which
gives us a value of 1. This is then converted via SIGN_PREF into
0x80000001 and put into the message. Certainly, this isn't what
was intended.

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sync with routed 2.27

fix -Wshadow warnings

sync with version 2.24. Vernon says:
The most significant [fix] involves so called "remote" interfaces
configured in the kludge file to with what appear to be colliding
networks. Edward Mascarenhas

sync with version 2.24. Vernon says:
The most significant [fix] involves so called "remote" interfaces
configured in the kludge file to with what appear to be colliding
networks. Edward Mascarenhas <eddiem@vihar.engr.sgi.com> found
the problem and the fix, and I think has tested it in the SGI
network.

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specify interface by using interface index (set/getsockopt with 0.0.0.0/8).

protability cast.

Resolve conflicts.

Update to 980910 from ftp.rhyolite.com

Merge the 980602 RIPv2/Router Discovery routed. Fixes floods of host routes
generated when one of the interfaces on the network does not support
broadcast (e.g. HIPPI or ATM).

From Vern Schryver <v

Merge the 980602 RIPv2/Router Discovery routed. Fixes floods of host routes
generated when one of the interfaces on the network does not support
broadcast (e.g. HIPPI or ATM).

From Vern Schryver <vjs@rhyolite.com>

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* cleanup for WARNS=1
* deprecate register
* bcmp, bcopy, bzero, rindex -> memcmp, memmove, memset, strrchr
* correct use of .Nm

- resolve conflicts.
- remove md5 stuff; it is in libc.
- define MCAST_PPP_BUG, until we fix if_ppp.c

- resolve conflicts
- try to follow rcsid style more closely
- fix rn_walktree callback routine signatures.

Make sure to fill in the whole sockaddr_in when sending a discovery packet.

- Finished up merge.

- Add some prototypes and definitions for types as necessary,
wrapped in __NetBSD__ to maintain portability.

- Explicit size types in structures that go out the wire.

- RCS

- Finished up merge.

- Add some prototypes and definitions for types as necessary,
wrapped in __NetBSD__ to maintain portability.

- Explicit size types in structures that go out the wire.

- RCS id police.

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A leaner, meaner routed(8), implementing RIPv1, RIPv2, and ICMP Router
Discovery, courtesy of Vernon Schryver <vjs@sgi.com>. Thanks!