Allow PacketAliasSetTarget() to be passed the following:

  INADDR_NONE:   Incoming packets go to the alias address (the default)
  INADDR_ANY:    Incoming packets are not NAT'd (direct access to the
                 internal network from outside)
  anything else: Incoming packets go to the specified address

Change a few inaddr::s_addr == 0 to inaddr::s_addr == INADDR_ANY
while I'm there.

1 files changed, 8 insertions, 1 deletions

diff --git a/sys/netinet/libalias/libalias.3 b/sys/netinet/libalias/libalias.3
index df1440c..66acc92 100644
--- a/sys/netinet/libalias/libalias.3
+++ b/sys/netinet/libalias/libalias.3
@@ -701,9 +701,16 @@ host machine, it will be sent to the address
 indicated by a call to PacketAliasSetTarget().
 
 If this function is not called, or is called
-with a zero address argument, then all new
+with a INADDR_NONE address argument, then all new
 incoming packets go to the address set by
 PacketAliasSetAddress.
+
+If this function is called with a INADDR_ANY address
+argument, then all new incoming packets go to the
+address specified in the packet.
+This allows external machines to talk directly to
+internal machines if they can route packets to the
+machine in question.
 .Ss 6.2 PacketAliasCheckNewLink()
 
 .Ft int