Currenlty socket man page mentions long dead netns stack (PF_NS) when talks about SOCK_SEQPACKET which is only valid for AF_BLUETOOTH these days. Also it mentions SOCK_RDM that is an unused SysV compat goo.
I think it make sense to update a reference for SOCK_SEQPACKET and don't mention SOCK_RDM at all. Ok? Index: lib/libc/sys/socket.2 =================================================================== RCS file: /home/cvs/src/lib/libc/sys/socket.2,v retrieving revision 1.31 diff -u -p -r1.31 socket.2 --- lib/libc/sys/socket.2 26 Nov 2008 22:40:21 -0000 1.31 +++ lib/libc/sys/socket.2 24 Feb 2011 14:40:33 -0000 @@ -77,7 +77,6 @@ Currently defined types are: .It SOCK_DGRAM .It SOCK_RAW .It SOCK_SEQPACKET -.It SOCK_RDM .El .Pp A @@ -98,7 +97,7 @@ of fixed maximum length; a consumer may an entire packet with each read system call. This facility is protocol specific, and presently implemented only for -.Dv PF_NS . +.Dv AF_BLUETOOTH . .Dv SOCK_RAW sockets provide access to internal network protocols and interfaces, and are available only to the superuser.