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   unix(4): Comma is wrong; semicolon is right.

   (Personally I would use an em dash here, but then I always render man
   pages with LC_ALL=C because UTF-8 output is screwy for various other
   reasons like rendering program options with characters other than
   standard hyphen `-' so searching for text like `-F' doesn't work.)

   unix(4): tweak markup

   Use comma instead of em-dash, it's easier to read in plain-text output
   (especically if it ends up as a single cell monospace em-dash in UTF-8
   that is just a pixel or two wider than a hyphen).  Use .Bx to get
   nicer looking smallcaps "BSD" in the PostScript output.

   unix(4): Rehome paragraph about sockcred that had wandered off.

   This paragraph is about LOCAL_CREDS, not about LOCAL_PEEREID.  Not
   sure how it escaped but let's bring it back where it belongs!

   PR kern/32844: unix domain sockets documentation is incomplete

   unix(4): Replace prose on cmsg details by xref to cmsg(3).

   This provides better information with less verbiage.

   Fix .Bl markup by specifying missing -width.

   PR kern/32844: unix domain sockets documentation is incomplete

   unix(4): Document options more legibly.

   1. Use `.Bl -tag' rather than just paragraphs upon paragraphs.

   2. Specify the type of each option and how it is to be used.

   3. Add LOCAL_CONNWAIT.

   4. Slim down the comment spacing a little to fit.

   PR kern/32844: unix domain sockets documentation is incomplete

   unix(4): Fix/add markup

   Untabify examples, .Bd -literal -offset indent doesn't seem to mesh
   with tabs nicely in the PostScript output.  The indent is probably not
   a multiple a of literal tab width.  This causes a small vertical
   misalignment for tab-indented lines, but what's worse - it can cause
   an extra tab in some cases (and did here for the unpcbid definition).

   Change back various occurrences of \*[Le], \*[Ge] (less/greater equal)
   and \*(ua (upwards arrow) to literal "<=", ">=" and "^" whenever
   appropriate (e.g., in code examples).

   fix references in manual pages to the reference documentation

   introduce a SOL_LOCAL for unix-domain socket level socket options
   as an alias of the current 0 used for these options, as in FreeBSD.

   reviewed by many.

   Pull up following revision(s) (requested by sevan in ticket #1351):

        share/man/man4/man4.amiga/grf.4: revision 1.7
        share/man/man4/si.4: revision 1.11
        share/man/man8/man8.sparc/boot.8: revision 1.32
        share/man/man5/nsswitch.conf.5: revision 1.29
        share/man/man5/mixerctl.conf.5: revision 1.7
        share/man/man8/man8.vax/boot.8: revision 1.14
        share/man/man4/man4.vax/dn.4: revision 1.12
        share/man/man8/man8.vax/drtest.8: revision 1.16
        share/man/man8/sysinst.8: revision 1.6
        share/man/man4/ip.4: revision 1.37
        share/man/man5/boot.cfg.5: revision 1.28
        share/man/man1/cd.1: revision 1.10
        share/man/man4/usb.4: revision 1.106
        share/man/man4/man4.vax/ix.4: revision 1.17
        share/man/man7/security.7: revision 1.15
        share/man/man7/hier.7: revision 1.123
        share/man/man8/afterboot.8: revision 1.58

    [143 lines not shown]

   Remove workaround for ancient HTML generation code.

   Add sc_pid to sockcred so that SOCK_DGRAM and LOCAL_CREDS socket option
   can learn the process id of the AF_LOCAL sender.
   Add compat glue for old structure.

   Bump date for SOCK_SEQPACKET; add serial commas.

   Document that SOCK_SEQPACKET is supported

   Fix some typos and incorrect idioms with the cmsg botch^WAPI.

   Add a couple cross-references too.

   ok wiz

   Use .In instead of .Aq Pa for header files.

   file unix.4 was added on branch uebayasi-xip on 2010-03-22 18:58:32 +0000

   Rewrite the sentence about the socket options to avoid questionable
   typographic layout and to be more inline with the wording of the rest of
   the man page.

   Add a new socket option for unix domain sockets: LOCAL_PEEREID, to make
   it possible to get the pid, euid and egid of the process at the remote
   end at the time it did bind() or connect().

   Add a new libc function, getpeereid() to easily get at the euid and egid.
   As a consequence, bump libc's minor number.

   Document the LOCAL_PEEREID socket option in unix(4).

   Based on contribution by Arne H. Juul, minor modifications by myself.

   Bump date for previous. New sentence, new line.

   Moved example code into its own section with an additional path truncation
   check. Added a COMPATIBILITY section for sun_len and SUN_LEN() as suggested
   by soda. Fixes PR lib/34744.

   Make HTML-output safe. Use more macros.

   note that sun_len is ignored, per discussion on tech-net

   add example on how to use SUN_LEN()

   fixed lib/34744 by Christian Biere

   Move UCB-licensed code from 4-clause to 3-clause licence.

   Patches provided by Joel Baker in PR 22309, verified by myself.

   Point to IPC tutorials in /usr/share/doc/psd, update names, and add authors.
   Bump date.
   Suggested by kleink.

   Use
   .In header.h
   instead of
   .Fd #include \*[Lt]header.h\*[Gt]
   Much easier to read and write, and supported by groff for ages.
   Okayed by ross.

   Generate <>& symbolically. I'm avoiding .../dist/... directories for now.

   Boring whitespace fixes.

   Improve usage of `comprise' according to Webster and misc/10893
   by Jim Bernard.