Subject: [ CVS commit: syssrc]
To: None <>
From: Jason R Thorpe <>
List: tech-net
Date: 06/04/2000 23:22:47
...this is something I stumbled on along the way to fixing a bug in
TI-RPC.  Turns out that this wasn't necessary to fix the RPC problem
I was seeing, but there was an open PR on the potential problem, and
the `unfdpass' regression program was failing.

For reference, the PR was kern/9516.  We should now be conformant with
RFC2292 on this issue.

----- Forwarded message from Jason R Thorpe <> -----

Date: Sun, 4 Jun 2000 23:06:12 -0700 (PDT)
From: Jason R Thorpe <>
Subject: CVS commit: syssrc

Module Name:	syssrc
Committed By:	thorpej
Date:		Mon Jun  5 06:06:11 UTC 2000

Modified Files:
	syssrc/sys/kern: uipc_usrreq.c

Log Message:
- Fix file descriptor passing AGAIN.  This has apparently been broken
  on LP64 systems (and probably the SPARC) since the __cmsg_alignbytes()
  changes went in.
- Change file descriptor passing to use CMSG_DATA(), not (cm + 1).  This
  pretty much has to be done in order to make it work properly on LP64,
  and considering that it's been broken this long...
- Use CMSG_SPACE() to determine the mbuf length needed for a given
  control message, and CMSG_LEN() to stash in the cmsg_len member.

To generate a diff of this commit:
cvs rdiff -r1.46 -r1.47 syssrc/sys/kern/uipc_usrreq.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

----- End forwarded message -----

        -- Jason R. Thorpe <>