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+.\" Copyright (c) 1995 Peter Wemm <peter@freebsd.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, is permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice immediately at the beginning of the file, without modification,
+.\"    this list of conditions, and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. This work was done expressly for inclusion into FreeBSD.  Other use
+.\"    is permitted provided this notation is included.
+.\" 4. Absolutely no warranty of function or purpose is made by the author
+.\"    Peter Wemm.
+.\" 5. Modifications may be freely made to this file providing the above
+.\"    conditions are met.
+.\"
+.\" $Id: setproctitle.3,v 1.8 1997/04/17 23:31:47 danny Exp $
+.\"
+.\" The following requests are required for all man pages.
+.Dd December 16, 1995
+.Os FreeBSD
+.Dt SETPROCTITLE 3
+.Sh NAME
+.Nm setproctitle
+.Nd set the process title for
+.Xr ps 1
+.Sh SYNOPSIS
+.Fd #include <sys/types.h>
+.Fd #include <libutil.h>
+.Ft void
+.Fn setproctitle "const char *fmt" "..."
+.Pp
+Link with
+.Va -lutil
+on the
+.Xr cc 1
+command line.
+.Sh DESCRIPTION
+The
+.Fn setproctitle
+library routine sets the process title that appears on the
+.Xr ps 1
+command.
+.Pp
+The title is set from the executable's name, followed by the
+result of a
+.Xr printf 3
+style expansion of the arguments as specified by the
+.Va fmt
+argument.
+.Pp
+If
+.Va fmt
+is NULL, the process title is reset to simply the name of the executable.
+.\" The following requests should be uncommented and used where appropriate.
+.\" This next request is for sections 2 and 3 function return values only.
+.\" .Sh RETURN VALUES
+.\" This next request is for sections 1, 6, 7 & 8 only
+.\" .Sh ENVIRONMENT
+.\" .Sh FILES
+.Sh EXAMPLES
+To set the title on a daemon to indicate its activity:
+.Bd -literal -offset indent
+setproctitle("talking to %s", inet_ntoa(addr));
+.Ed
+.\" This next request is for sections 1, 6, 7 & 8 only
+.\"     (command return values (to shell) and fprintf/stderr type diagnostics)
+.\" .Sh DIAGNOSTICS
+.\" The next request is for sections 2 and 3 error and signal handling only.
+.\" .Sh ERRORS
+.Sh SEE ALSO
+.Xr ps 1 ,
+.Xr w 1 ,
+.Xr kvm 3 ,
+.Xr kvm_getargv 3 ,
+.Xr printf 3
+.Sh STANDARDS
+.Fn setproctitle
+is implicitly non-standard.  Other methods of causing the
+.Xr ps 1
+command line to change, including copying over the argv[0] string are
+also implicitly non-portable.  It is preferable to use an operating system
+supplied
+.Fn setproctitle
+if present.
+.Pp
+Unfortunately, it is possible that there are other calling conventions
+to other versions of
+.Fn setproctitle ,
+although none have been found by the author as yet.  This is believed to be
+the predominant convention.
+.Pp
+It is thought that the implementation is compatible with other systems,
+including
+.Tn NetBSD
+and
+.Tn BSD/OS .
+.Sh HISTORY
+.Fn setproctitle
+first appeared in
+.Fx 2.2 .
+Other operating systems have
+similar functions.
+.Sh AUTHORS
+.Sy "Peter Wemm <peter@FreeBSD.org>"
+stole the idea from the
+.Sy "Sendmail 8.7.3"
+source code by
+.Sy "Eric Allman <eric@sendmail.org>" .
+.\" .Sh BUGS