- Add support for CVSup authentication mechanisms to csup.

- Include a cpasswd script performing the same mechanisms as the cvpasswd
  utility from CVSup.

PR:		bin/114129
Submitted by:	Petar Zhivkov Petrov <pesho.petrov -at- gmail.com>
MFC after:	1 month

1 files changed, 120 insertions, 0 deletions

diff --git a/contrib/csup/cpasswd.1 b/contrib/csup/cpasswd.1
new file mode 100644
index 0000000..946783f
--- /dev/null
+++ b/contrib/csup/cpasswd.1
@@ -0,0 +1,120 @@
+.\" Copyright 1999-2003 John D. Polstra.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgment:
+.\"      This product includes software developed by John D. Polstra.
+.\" 4. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $Id: cvpasswd.1,v 1.4 2003/03/04 18:24:42 jdp Exp $
+.\" $FreeBSD $
+.\"
+.Dd June 27, 2007
+.Os FreeBSD
+.Dt CPASSWD 1
+.Sh NAME
+.Nm cpasswd
+.Nd scramble passwords for csup authentication
+.Sh SYNOPSIS
+.Nm
+.Ar clientName
+.Ar serverName
+.Sh DESCRIPTION
+The
+.Nm
+utility creates scrambled passwords for the
+.Nm CVSup
+server's authentication database.  It is invoked with a client name
+and a server name.
+.Ar ClientName
+is the name the client uses to gain access to the
+server.  By convention, e-mail addresses are used for all client
+names, e.g.,
+.Ql BillyJoe@FreeBSD.ORG .
+Client names are case-insensitive.
+.Pp 
+.Ar ServerName
+is the name of the
+.Nm CVSup
+server which the client wishes to access.  By convention,
+it is the canonical fully-qualified domain name of the server, e.g.,
+.Ql CVSup.FreeBSD.ORG .
+This must agree with the server's own idea of its name.  The name is
+case-insensitive.
+.Pp
+To set up authentication for a given server, one must perform the
+following steps:
+.Bl -enum
+.It
+Obtain the official
+.Ar serverName
+from the administrator of the server or from some other source.
+.It
+Choose an appropriate
+.Ar clientName .
+It should be in the form of a valid e-mail address, to make it easy
+for the server administrator to contact the user if necessary.
+.It
+Choose an arbitrary secret
+.Ar password .
+.It
+Run
+.Nm cpasswd ,
+and type in the
+.Ar password
+when prompted for it.  The utility will print out a line to send
+to the server administrator, and instruct you how to modify your
+.Li $ Ns Ev HOME Ns Pa /.csup/auth
+file.  You should use a secure channel to send the line to the
+server administrator.
+.El
+.Pp
+Since
+.Li $ Ns Ev HOME Ns Pa /.csup/auth
+contains passwords, you should ensure that it is not readable by
+anyone except yourself.
+.Sh FILES
+.Bl -tag -width $HOME/.csup/authxx -compact
+.It Li $ Ns Ev HOME Ns Pa /.csup/auth
+Authentication password file.
+.El
+.Sh SEE ALSO
+.Xr csup 1 ,
+.Xr cvsup 1 ,
+.Xr cvsupd 8 .
+.Pp
+.Bd -literal
+http://www.cvsup.org/
+.Ed
+.Sh AUTHORS
+.An -nosplit
+.An Petar Zhivkov Petrov Aq pesho.petrov@gmail.com
+is the author of
+.Nm ,
+the rewrite of
+.Nm cvpasswd .
+.An John Polstra Aq jdp@polstra.com
+is the author of
+.Nm CVSup .
+.Sh LEGALITIES
+CVSup is a registered trademark of John D. Polstra.