2341 lines
52 KiB
Groff
2341 lines
52 KiB
Groff
.\" $NetBSD: ftp.1,v 1.105 2004/12/01 12:03:55 wiz Exp $
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.\"
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.\" Copyright (c) 1996-2003 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Luke Mewburn.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the NetBSD
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.\" Foundation, Inc. and its contributors.
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.\" 4. Neither the name of The NetBSD Foundation nor the names of its
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.\" contributors may be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\"
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.\" Copyright (c) 1985, 1989, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)ftp.1 8.3 (Berkeley) 10/9/94
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.\"
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.Dd October 7, 2004
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.Dt FTP 1
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.Os
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.Sh NAME
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.Nm ftp
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.Nd
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Internet file transfer program
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.Sh SYNOPSIS
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.Nm
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.Op Fl 46AadefginpRtvV
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.Bk -words
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.Op Fl N Ar netrc
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.Ek
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.Bk -words
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.Op Fl o Ar output
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.Ek
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.Bk -words
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.Op Fl P Ar port
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.Ek
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.Bk -words
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.Op Fl q Ar quittime
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.Ek
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.Bk -words
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.Op Fl r Ar retry
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.Ek
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.Bk -words
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|
.\" [-T dir,max[,inc]]
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.Oo
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.Fl T Xo
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.Sm off
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|
.Ar dir ,
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.Ar max
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|
.Op , Ar inc
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.Sm on
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.Xc
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.Oc
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.Ek
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.Bk -words
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|
.\" [[user@]host [port]]
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.Oo
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.Oo Ar user Ns Li \&@ Oc Ns Ar host
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.Op Ar port
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.Oc
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.Ek
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.Bk -words
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.\" [[user@]host:[path][/]]
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.Sm off
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.Oo
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.Op Ar user Li \&@
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.Ar host Li \&:
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.Op Ar path
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.Op Li /
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.Oc
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.Sm on
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.Ek
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.Bk -words
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.\" [file:///path]
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.Sm off
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.Oo
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.Li file:/// Ar path
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.Oc
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.Sm on
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.Ek
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.Bk -words
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.\" [ftp://[user[:password]@]host[:port]/path[/]]
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.Sm off
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.Oo
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.Li ftp://
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.Oo Ar user
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.Op Li \&: Ar password
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.Li \&@ Oc
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.Ar host Oo Li \&: Ar port Oc
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.Li / Ar path
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.Op Li /
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.Op Li ;type= Ar X
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.Oc
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.Sm on
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.Ek
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.Bk -words
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.\" [http://[user[:password]@]host[:port]/path]
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.Sm off
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.Oo
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.Li http://
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.Oo Ar user
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.Op Li \&: Ar password
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.Li \&@ Oc
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.Ar host Oo Li \&: Ar port Oc
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.Li / Ar path
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.Oc
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.Sm on
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.Ek
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.Op Ar \&.\&.\&.
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.Nm
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.Bk -words
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.Fl u Ar URL Ar file
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.Ek
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.Op Ar \&.\&.\&.
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.Sh DESCRIPTION
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.Nm
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is the user interface to the Internet standard File Transfer Protocol.
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The program allows a user to transfer files to and from a
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remote network site.
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.Pp
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The last five arguments will fetch a file using the
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.Tn FTP
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or
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.Tn HTTP
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protocols, or by direct copying, into the current directory.
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This is ideal for scripts.
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Refer to
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.Sx AUTO-FETCHING FILES
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below for more information.
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.Pp
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Options may be specified at the command line, or to the
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command interpreter.
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.Bl -tag -width "port "
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.It Fl 4
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Forces
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.Nm
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to only use IPv4 addresses.
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.It Fl 6
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Forces
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.Nm
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to only use IPv6 addresses.
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.It Fl A
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Force active mode ftp.
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By default,
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.Nm
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will try to use passive mode ftp and fall back to active mode
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if passive is not supported by the server.
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This option causes
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.Nm
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to always use an active connection.
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It is only useful for connecting to very old servers that do not
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implement passive mode properly.
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.It Fl a
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Causes
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.Nm
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to bypass normal login procedure, and use an anonymous login instead.
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.It Fl d
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Enables debugging.
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.It Fl e
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Disables command line editing.
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This is useful for Emacs ange-ftp mode.
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.It Fl f
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Forces a cache reload for transfers that go through the
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.Tn FTP
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or
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.Tn HTTP
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proxies.
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.It Fl g
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Disables file name globbing.
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.It Fl i
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Turns off interactive prompting during
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multiple file transfers.
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.It Fl n
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Restrains
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.Nm
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from attempting
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.Dq auto-login
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upon initial connection for non auto-fetch transfers.
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If auto-login is enabled,
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.Nm
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will check the
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.Pa .netrc
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(see below) file in the user's home directory for an entry describing
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an account on the remote machine.
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If no entry exists,
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.Nm
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will prompt for the remote machine login name (default is the user
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identity on the local machine), and, if necessary, prompt for a password
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and an account with which to login.
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To override the auto-login for auto-fetch transfers, specify the
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username (and optionally, password) as appropriate.
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.It Fl N Ar netrc
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Use
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.Ar netrc
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instead of
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.Pa ~/.netrc .
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Refer to
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.Sx THE .netrc FILE
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for more information.
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.It Fl o Ar output
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When auto-fetching files, save the contents in
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.Ar output .
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.Ar output
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is parsed according to the
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.Sx FILE NAMING CONVENTIONS
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below.
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If
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.Ar output
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is not
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.Sq -
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or doesn't start with
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.Sq \&| ,
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then only the first file specified will be retrieved into
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.Ar output ;
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all other files will be retrieved into the basename of their
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remote name.
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|
.It Fl p
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Enable passive mode operation for use behind connection filtering firewalls.
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|
This option has been deprecated as
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.Nm
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now tries to use passive mode by default, falling back to active mode
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if the server does not support passive connections.
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|
.It Fl P Ar port
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Sets the port number to
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.Ar port .
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|
.It Fl r Ar wait
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Retry the connection attempt if it failed, pausing for
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.Ar wait
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seconds.
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.It Fl q Ar quittime
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Quit if the connection has stalled for
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.Ar quittime
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seconds.
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.It Fl R
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Restart all non-proxied auto-fetches.
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.It Fl t
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Enables packet tracing.
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.It Xo
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.Fl T
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.Sm off
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.Ar direction ,
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.Ar maximum
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.Op , Ar increment
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.Sm on
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|
.Xc
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|
Set the maximum transfer rate for
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.Ar direction
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to
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.Ar maximum
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bytes/second,
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|
and if specified, the increment to
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.Ar increment
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|
bytes/second.
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|
Refer to
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.Ic rate
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for more information.
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|
.It Fl u Ar URL file Op \&.\&.\&.
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|
Upload files on the command line to
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.Ar URL
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where
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|
.Ar URL
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is one of the ftp URL types as supported by auto-fetch
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(with an optional target filename for single file uploads), and
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|
.Ar file
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is one or more local files to be uploaded.
|
|
.It Fl v
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|
Enable
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|
.Ic verbose
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|
and
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.Ic progress .
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|
This is the default if output is to a terminal (and in the case of
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.Ic progress ,
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|
.Nm
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is the foreground process).
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|
Forces
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.Nm
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to show all responses from the remote server, as well
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|
as report on data transfer statistics.
|
|
.It Fl V
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|
Disable
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|
.Ic verbose
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|
and
|
|
.Ic progress ,
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|
overriding the default of enabled when output is to a terminal.
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|
.El
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.Pp
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The client host with which
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.Nm
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is to communicate may be specified on the command line.
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|
If this is done,
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.Nm
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|
will immediately attempt to establish a connection to an
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.Tn FTP
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server on that host; otherwise,
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.Nm
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|
will enter its command interpreter and await instructions
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|
from the user.
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|
When
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.Nm
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|
is awaiting commands from the user the prompt
|
|
.Ql ftp\*[Gt]
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|
is provided to the user.
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|
The following commands are recognized
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|
by
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|
.Nm ftp :
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.Bl -tag -width Fl
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.It Ic \&! Op Ar command Op Ar args
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|
Invoke an interactive shell on the local machine.
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|
If there are arguments, the first is taken to be a command to execute
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|
directly, with the rest of the arguments as its arguments.
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|
.It Ic \&$ Ar macro-name Op Ar args
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|
Execute the macro
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|
.Ar macro-name
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that was defined with the
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|
.Ic macdef
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command.
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|
Arguments are passed to the macro unglobbed.
|
|
.It Ic account Op Ar passwd
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Supply a supplemental password required by a remote system for access
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to resources once a login has been successfully completed.
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If no argument is included, the user will be prompted for an account
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password in a non-echoing input mode.
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|
.It Ic append Ar local-file Op Ar remote-file
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Append a local file to a file on the remote machine.
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|
If
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.Ar remote-file
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is left unspecified, the local file name is used in naming the
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|
remote file after being altered by any
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|
.Ic ntrans
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or
|
|
.Ic nmap
|
|
setting.
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|
File transfer uses the current settings for
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.Ic type ,
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.Ic format ,
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|
.Ic mode ,
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and
|
|
.Ic structure .
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|
.It Ic ascii
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|
Set the file transfer
|
|
.Ic type
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|
to network
|
|
.Tn ASCII .
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|
This is the default type.
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|
.It Ic bell
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|
Arrange that a bell be sounded after each file transfer
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|
command is completed.
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|
.It Ic binary
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Set the file transfer
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.Ic type
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|
to support binary image transfer.
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|
.It Ic bye
|
|
Terminate the
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|
.Tn FTP
|
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session with the remote server
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|
and exit
|
|
.Nm ftp .
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|
An end of file will also terminate the session and exit.
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|
.It Ic case
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|
Toggle remote computer file name case mapping during
|
|
.Ic get ,
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|
.Ic mget
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|
and
|
|
.Ic mput
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|
commands.
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|
When
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|
.Ic case
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is on (default is off), remote computer file names with all letters in
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|
upper case are written in the local directory with the letters mapped
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|
to lower case.
|
|
.It Ic \&cd Ar remote-directory
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|
Change the working directory on the remote machine
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|
to
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|
.Ar remote-directory .
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|
.It Ic cdup
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|
Change the remote machine working directory to the parent of the
|
|
current remote machine working directory.
|
|
.It Ic chmod Ar mode remote-file
|
|
Change the permission modes of the file
|
|
.Ar remote-file
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|
on the remote
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|
system to
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|
.Ar mode .
|
|
.It Ic close
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|
Terminate the
|
|
.Tn FTP
|
|
session with the remote server, and
|
|
return to the command interpreter.
|
|
Any defined macros are erased.
|
|
.It Ic \&cr
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|
Toggle carriage return stripping during
|
|
ascii type file retrieval.
|
|
Records are denoted by a carriage return/linefeed sequence
|
|
during ascii type file transfer.
|
|
When
|
|
.Ic \&cr
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|
is on (the default), carriage returns are stripped from this
|
|
sequence to conform with the
|
|
.Ux
|
|
single linefeed record
|
|
delimiter.
|
|
Records on
|
|
.Pf non\- Ns Ux
|
|
remote systems may contain single linefeeds;
|
|
when an ascii type transfer is made, these linefeeds may be
|
|
distinguished from a record delimiter only when
|
|
.Ic \&cr
|
|
is off.
|
|
.It Ic debug Op Ar debug-value
|
|
Toggle debugging mode.
|
|
If an optional
|
|
.Ar debug-value
|
|
is specified it is used to set the debugging level.
|
|
When debugging is on,
|
|
.Nm
|
|
prints each command sent to the remote machine, preceded
|
|
by the string
|
|
.Ql \-\-\*[Gt]
|
|
.It Ic delete Ar remote-file
|
|
Delete the file
|
|
.Ar remote-file
|
|
on the remote machine.
|
|
.It Ic dir Op Ar remote-path Op Ar local-file
|
|
Print a listing of the contents of a
|
|
directory on the remote machine.
|
|
The listing includes any system-dependent information that the server
|
|
chooses to include; for example, most
|
|
.Ux
|
|
systems will produce
|
|
output from the command
|
|
.Ql ls \-l .
|
|
If
|
|
.Ar remote-path
|
|
is left unspecified, the current working directory is used.
|
|
If interactive prompting is on,
|
|
.Nm
|
|
will prompt the user to verify that the last argument is indeed the
|
|
target local file for receiving
|
|
.Ic dir
|
|
output.
|
|
If no local file is specified, or if
|
|
.Ar local-file
|
|
is
|
|
.Sq Fl ,
|
|
the output is sent to the terminal.
|
|
.It Ic disconnect
|
|
A synonym for
|
|
.Ic close .
|
|
.It Ic edit
|
|
Toggle command line editing, and context sensitive command and file
|
|
completion.
|
|
This is automatically enabled if input is from a terminal, and
|
|
disabled otherwise.
|
|
.It Ic epsv4
|
|
Toggle the use of the extended
|
|
.Dv EPSV
|
|
and
|
|
.Dv EPRT
|
|
commands on IPv4 connections; first try
|
|
.Dv EPSV /
|
|
.Dv EPRT ,
|
|
and then
|
|
.Dv PASV /
|
|
.Dv PORT .
|
|
This is enabled by default.
|
|
If an extended command fails then this option will be temporarily
|
|
disabled for the duration of the current connection, or until
|
|
.Ic epsv4
|
|
is executed again.
|
|
.It Ic exit
|
|
A synonym for
|
|
.Ic bye .
|
|
.It Ic features
|
|
Display what features the remote server supports (using the
|
|
.Dv FEAT
|
|
command).
|
|
.It Ic fget Ar localfile
|
|
Retrieve the files listed in
|
|
.Ar localfile ,
|
|
which has one line per filename.
|
|
.It Ic form Ar format
|
|
Set the file transfer
|
|
.Ic form
|
|
to
|
|
.Ar format .
|
|
The default (and only supported)
|
|
format is
|
|
.Dq non-print .
|
|
.It Ic ftp Ar host Op Ar port
|
|
A synonym for
|
|
.Ic open .
|
|
.It Ic gate Op Ar host Op Ar port
|
|
Toggle gate-ftp mode, which used to connect through the
|
|
TIS FWTK and Gauntlet ftp proxies.
|
|
This will not be permitted if the gate-ftp server hasn't been set
|
|
(either explicitly by the user, or from the
|
|
.Ev FTPSERVER
|
|
environment variable).
|
|
If
|
|
.Ar host
|
|
is given,
|
|
then gate-ftp mode will be enabled, and the gate-ftp server will be set to
|
|
.Ar host .
|
|
If
|
|
.Ar port
|
|
is also given, that will be used as the port to connect to on the
|
|
gate-ftp server.
|
|
.It Ic get Ar remote-file Op Ar local-file
|
|
Retrieve the
|
|
.Ar remote-file
|
|
and store it on the local machine.
|
|
If the local
|
|
file name is not specified, it is given the same
|
|
name it has on the remote machine, subject to
|
|
alteration by the current
|
|
.Ic case ,
|
|
.Ic ntrans ,
|
|
and
|
|
.Ic nmap
|
|
settings.
|
|
The current settings for
|
|
.Ic type ,
|
|
.Ic form ,
|
|
.Ic mode ,
|
|
and
|
|
.Ic structure
|
|
are used while transferring the file.
|
|
.It Ic glob
|
|
Toggle filename expansion for
|
|
.Ic mdelete ,
|
|
.Ic mget ,
|
|
.Ic mput ,
|
|
and
|
|
.Ic mreget .
|
|
If globbing is turned off with
|
|
.Ic glob ,
|
|
the file name arguments
|
|
are taken literally and not expanded.
|
|
Globbing for
|
|
.Ic mput
|
|
is done as in
|
|
.Xr csh 1 .
|
|
For
|
|
.Ic mdelete ,
|
|
.Ic mget ,
|
|
and
|
|
.Ic mreget ,
|
|
each remote file name is expanded
|
|
separately on the remote machine and the lists are not merged.
|
|
Expansion of a directory name is likely to be
|
|
different from expansion of the name of an ordinary file:
|
|
the exact result depends on the foreign operating system and ftp server,
|
|
and can be previewed by doing
|
|
.Ql mls remote-files \-
|
|
Note:
|
|
.Ic mget ,
|
|
.Ic mput
|
|
and
|
|
.Ic mreget
|
|
are not meant to transfer
|
|
entire directory subtrees of files.
|
|
That can be done by
|
|
transferring a
|
|
.Xr tar 1
|
|
archive of the subtree (in binary mode).
|
|
.It Ic hash Op Ar size
|
|
Toggle hash-sign (``#'') printing for each data block
|
|
transferred.
|
|
The size of a data block defaults to 1024 bytes.
|
|
This can be changed by specifying
|
|
.Ar size
|
|
in bytes.
|
|
Enabling
|
|
.Ic hash
|
|
disables
|
|
.Ic progress .
|
|
.It Ic help Op Ar command
|
|
Print an informative message about the meaning of
|
|
.Ar command .
|
|
If no argument is given,
|
|
.Nm
|
|
prints a list of the known commands.
|
|
.It Ic idle Op Ar seconds
|
|
Set the inactivity timer on the remote server to
|
|
.Ar seconds
|
|
seconds.
|
|
If
|
|
.Ar seconds
|
|
is omitted, the current inactivity timer is printed.
|
|
.It Ic image
|
|
A synonym for
|
|
.Ic binary .
|
|
.It Ic lcd Op Ar directory
|
|
Change the working directory on the local machine.
|
|
If
|
|
no
|
|
.Ar directory
|
|
is specified, the user's home directory is used.
|
|
.It Ic less Ar file
|
|
A synonym for
|
|
.Ic page .
|
|
.It Ic lpage Ar local-file
|
|
Display
|
|
.Ar local-file
|
|
with the program specified by the
|
|
.Ic "set pager"
|
|
option.
|
|
.It Ic lpwd
|
|
Print the working directory on the local machine.
|
|
.It Ic \&ls Op Ar remote-path Op Ar local-file
|
|
A synonym for
|
|
.Ic dir .
|
|
.It Ic macdef Ar macro-name
|
|
Define a macro.
|
|
Subsequent lines are stored as the macro
|
|
.Ar macro-name ;
|
|
a null line (consecutive newline characters
|
|
in a file or
|
|
carriage returns from the terminal) terminates macro input mode.
|
|
There is a limit of 16 macros and 4096 total characters in all
|
|
defined macros.
|
|
Macros remain defined until a
|
|
.Ic close
|
|
command is executed.
|
|
The macro processor interprets `$' and `\e' as special characters.
|
|
A `$' followed by a number (or numbers) is replaced by the
|
|
corresponding argument on the macro invocation command line.
|
|
A `$' followed by an `i' signals that macro processor that the
|
|
executing macro is to be looped.
|
|
On the first pass `$i' is
|
|
replaced by the first argument on the macro invocation command line,
|
|
on the second pass it is replaced by the second argument, and so on.
|
|
A `\e' followed by any character is replaced by that character.
|
|
Use the `\e' to prevent special treatment of the `$'.
|
|
.It Ic mdelete Op Ar remote-files
|
|
Delete the
|
|
.Ar remote-files
|
|
on the remote machine.
|
|
.It Ic mdir Ar remote-files local-file
|
|
Like
|
|
.Ic dir ,
|
|
except multiple remote files may be specified.
|
|
If interactive prompting is on,
|
|
.Nm
|
|
will prompt the user to verify that the last argument is indeed the
|
|
target local file for receiving
|
|
.Ic mdir
|
|
output.
|
|
.It Ic mget Ar remote-files
|
|
Expand the
|
|
.Ar remote-files
|
|
on the remote machine
|
|
and do a
|
|
.Ic get
|
|
for each file name thus produced.
|
|
See
|
|
.Ic glob
|
|
for details on the filename expansion.
|
|
Resulting file names will then be processed according to
|
|
.Ic case ,
|
|
.Ic ntrans ,
|
|
and
|
|
.Ic nmap
|
|
settings.
|
|
Files are transferred into the local working directory,
|
|
which can be changed with
|
|
.Ql lcd directory ;
|
|
new local directories can be created with
|
|
.Ql "\&! mkdir directory" .
|
|
.It Ic mkdir Ar directory-name
|
|
Make a directory on the remote machine.
|
|
.It Ic mls Ar remote-files local-file
|
|
Like
|
|
.Ic ls ,
|
|
except multiple remote files may be specified,
|
|
and the
|
|
.Ar local-file
|
|
must be specified.
|
|
If interactive prompting is on,
|
|
.Nm
|
|
will prompt the user to verify that the last argument is indeed the
|
|
target local file for receiving
|
|
.Ic mls
|
|
output.
|
|
.It Ic mlsd Op Ar remote-path
|
|
Display the contents of
|
|
.Ar remote-path
|
|
(which should default to the current directory if not given)
|
|
in a machine-parsable form, using
|
|
.Dv MLSD .
|
|
The format of display can be changed with
|
|
.Sq "remopts mlst ..." .
|
|
.It Ic mlst Op Ar remote-path
|
|
Display the details about
|
|
.Ar remote-path
|
|
(which should default to the current directory if not given)
|
|
in a machine-parsable form, using
|
|
.Dv MLST .
|
|
The format of display can be changed with
|
|
.Sq "remopts mlst ..." .
|
|
.It Ic mode Ar mode-name
|
|
Set the file transfer
|
|
.Ic mode
|
|
to
|
|
.Ar mode-name .
|
|
The default (and only supported)
|
|
mode is
|
|
.Dq stream .
|
|
.It Ic modtime Ar remote-file
|
|
Show the last modification time of the file on the remote machine.
|
|
.It Ic more Ar file
|
|
A synonym for
|
|
.Ic page .
|
|
.It Ic mput Ar local-files
|
|
Expand wild cards in the list of local files given as arguments
|
|
and do a
|
|
.Ic put
|
|
for each file in the resulting list.
|
|
See
|
|
.Ic glob
|
|
for details of filename expansion.
|
|
Resulting file names will then be processed according to
|
|
.Ic ntrans
|
|
and
|
|
.Ic nmap
|
|
settings.
|
|
.It Ic mreget Ar remote-files
|
|
As per
|
|
.Ic mget ,
|
|
but performs a
|
|
.Ic reget
|
|
instead of
|
|
.Ic get .
|
|
.It Ic msend Ar local-files
|
|
A synonym for
|
|
.Ic mput .
|
|
.It Ic newer Ar remote-file Op Ar local-file
|
|
Get the file only if the modification time of the remote file is more
|
|
recent that the file on the current system.
|
|
If the file does not
|
|
exist on the current system, the remote file is considered
|
|
.Ic newer .
|
|
Otherwise, this command is identical to
|
|
.Ar get .
|
|
.It Ic nlist Op Ar remote-path Op Ar local-file
|
|
A synonym for
|
|
.Ic ls .
|
|
.It Ic nmap Op Ar inpattern outpattern
|
|
Set or unset the filename mapping mechanism.
|
|
If no arguments are specified, the filename mapping mechanism is unset.
|
|
If arguments are specified, remote filenames are mapped during
|
|
.Ic mput
|
|
commands and
|
|
.Ic put
|
|
commands issued without a specified remote target filename.
|
|
If arguments are specified, local filenames are mapped during
|
|
.Ic mget
|
|
commands and
|
|
.Ic get
|
|
commands issued without a specified local target filename.
|
|
This command is useful when connecting to a
|
|
.No non\- Ns Ux
|
|
remote computer
|
|
with different file naming conventions or practices.
|
|
The mapping follows the pattern set by
|
|
.Ar inpattern
|
|
and
|
|
.Ar outpattern .
|
|
.Op Ar Inpattern
|
|
is a template for incoming filenames (which may have already been
|
|
processed according to the
|
|
.Ic ntrans
|
|
and
|
|
.Ic case
|
|
settings).
|
|
Variable templating is accomplished by including the
|
|
sequences `$1', `$2', ..., `$9' in
|
|
.Ar inpattern .
|
|
Use `\\' to prevent this special treatment of the `$' character.
|
|
All other characters are treated literally, and are used to determine the
|
|
.Ic nmap
|
|
.Op Ar inpattern
|
|
variable values.
|
|
For example, given
|
|
.Ar inpattern
|
|
$1.$2 and the remote file name "mydata.data", $1 would have the value
|
|
"mydata", and $2 would have the value "data".
|
|
The
|
|
.Ar outpattern
|
|
determines the resulting mapped filename.
|
|
The sequences `$1', `$2', ...., `$9' are replaced by any value resulting
|
|
from the
|
|
.Ar inpattern
|
|
template.
|
|
The sequence `$0' is replace by the original filename.
|
|
Additionally, the sequence
|
|
.Ql Op Ar seq1 , Ar seq2
|
|
is replaced by
|
|
.Op Ar seq1
|
|
if
|
|
.Ar seq1
|
|
is not a null string; otherwise it is replaced by
|
|
.Ar seq2 .
|
|
For example, the command
|
|
.Pp
|
|
.Bd -literal -offset indent -compact
|
|
nmap $1.$2.$3 [$1,$2].[$2,file]
|
|
.Ed
|
|
.Pp
|
|
would yield
|
|
the output filename "myfile.data" for input filenames "myfile.data" and
|
|
"myfile.data.old", "myfile.file" for the input filename "myfile", and
|
|
"myfile.myfile" for the input filename ".myfile".
|
|
Spaces may be included in
|
|
.Ar outpattern ,
|
|
as in the example: `nmap $1 sed "s/ *$//" \*[Gt] $1' .
|
|
Use the `\e' character to prevent special treatment
|
|
of the `$','[',']', and `,' characters.
|
|
.It Ic ntrans Op Ar inchars Op Ar outchars
|
|
Set or unset the filename character translation mechanism.
|
|
If no arguments are specified, the filename character
|
|
translation mechanism is unset.
|
|
If arguments are specified, characters in
|
|
remote filenames are translated during
|
|
.Ic mput
|
|
commands and
|
|
.Ic put
|
|
commands issued without a specified remote target filename.
|
|
If arguments are specified, characters in
|
|
local filenames are translated during
|
|
.Ic mget
|
|
commands and
|
|
.Ic get
|
|
commands issued without a specified local target filename.
|
|
This command is useful when connecting to a
|
|
.No non\- Ns Ux
|
|
remote computer
|
|
with different file naming conventions or practices.
|
|
Characters in a filename matching a character in
|
|
.Ar inchars
|
|
are replaced with the corresponding character in
|
|
.Ar outchars .
|
|
If the character's position in
|
|
.Ar inchars
|
|
is longer than the length of
|
|
.Ar outchars ,
|
|
the character is deleted from the file name.
|
|
.It Ic open Ar host Op Ar port
|
|
Establish a connection to the specified
|
|
.Ar host
|
|
.Tn FTP
|
|
server.
|
|
An optional port number may be supplied,
|
|
in which case,
|
|
.Nm
|
|
will attempt to contact an
|
|
.Tn FTP
|
|
server at that port.
|
|
If the
|
|
.Ic "set auto-login"
|
|
option is on (default),
|
|
.Nm
|
|
will also attempt to automatically log the user in to
|
|
the
|
|
.Tn FTP
|
|
server (see below).
|
|
.It Ic page Ar file
|
|
Retrieve
|
|
.Ic file
|
|
and display with the program specified by the
|
|
.Ic "set pager"
|
|
option.
|
|
.It Ic passive Op Cm auto
|
|
Toggle passive mode (if no arguments are given).
|
|
If
|
|
.Cm auto
|
|
is given, act as if
|
|
.Ev FTPMODE
|
|
is set to
|
|
.Sq auto .
|
|
If passive mode is turned on (default),
|
|
.Nm
|
|
will send a
|
|
.Dv PASV
|
|
command for all data connections instead of a
|
|
.Dv PORT
|
|
command.
|
|
The
|
|
.Dv PASV
|
|
command requests that the remote server open a port for the data connection
|
|
and return the address of that port.
|
|
The remote server listens on that port and the client connects to it.
|
|
When using the more traditional
|
|
.Dv PORT
|
|
command, the client listens on a port and sends that address to the remote
|
|
server, who connects back to it.
|
|
Passive mode is useful when using
|
|
.Nm
|
|
through a gateway router or host that controls the directionality of
|
|
traffic.
|
|
(Note that though
|
|
.Tn FTP
|
|
servers are required to support the
|
|
.Dv PASV
|
|
command by RFC 1123, some do not.)
|
|
.It Ic pdir Op Ar remote-path
|
|
Perform
|
|
.Ic dir
|
|
.Op Ar remote-path ,
|
|
and display the result with the program specified by the
|
|
.Ic "set pager"
|
|
option.
|
|
.It Ic pls Op Ar remote-path
|
|
Perform
|
|
.Ic ls
|
|
.Op Ar remote-path ,
|
|
and display the result with the program specified by the
|
|
.Ic "set pager"
|
|
option.
|
|
.It Ic pmlsd Op Ar remote-path
|
|
Perform
|
|
.Ic mlsd
|
|
.Op Ar remote-path ,
|
|
and display the result with the program specified by the
|
|
.Ic "set pager"
|
|
option.
|
|
.It Ic preserve
|
|
Toggle preservation of modification times on retrieved files.
|
|
.It Ic progress
|
|
Toggle display of transfer progress bar.
|
|
The progress bar will be disabled for a transfer that has
|
|
.Ar local-file
|
|
as
|
|
.Sq Fl
|
|
or a command that starts with
|
|
.Sq \&| .
|
|
Refer to
|
|
.Sx FILE NAMING CONVENTIONS
|
|
for more information.
|
|
Enabling
|
|
.Ic progress
|
|
disables
|
|
.Ic hash .
|
|
.It Ic prompt
|
|
Toggle interactive prompting.
|
|
Interactive prompting
|
|
occurs during multiple file transfers to allow the
|
|
user to selectively retrieve or store files.
|
|
If prompting is turned off (default is on), any
|
|
.Ic mget
|
|
or
|
|
.Ic mput
|
|
will transfer all files, and any
|
|
.Ic mdelete
|
|
will delete all files.
|
|
.Pp
|
|
When prompting is on, the following commands are available at a prompt:
|
|
.Bl -tag -width 2n -offset indent
|
|
.It Cm a
|
|
Answer
|
|
.Sq yes
|
|
to the current file, and automatically answer
|
|
.Sq yes
|
|
to any remaining files for the current command.
|
|
.It Cm n
|
|
Answer
|
|
.Sq no ,
|
|
and do not transfer the file.
|
|
.It Cm p
|
|
Answer
|
|
.Sq yes
|
|
to the current file, and turn off prompt mode
|
|
(as is
|
|
.Dq prompt off
|
|
had been given).
|
|
.It Cm q
|
|
Terminate the current operation.
|
|
.It Cm y
|
|
Answer
|
|
.Sq yes ,
|
|
and transfer the file.
|
|
.It Cm \&?
|
|
Display a help message.
|
|
.El
|
|
.Pp
|
|
Any other response will answer
|
|
.Sq yes
|
|
to the current file.
|
|
.It Ic proxy Ar ftp-command
|
|
Execute an ftp command on a secondary control connection.
|
|
This command allows simultaneous connection to two remote
|
|
.Tn FTP
|
|
servers for transferring files between the two servers.
|
|
The first
|
|
.Ic proxy
|
|
command should be an
|
|
.Ic open ,
|
|
to establish the secondary control connection.
|
|
Enter the command "proxy ?" to see other
|
|
.Tn FTP
|
|
commands executable on the secondary connection.
|
|
The following commands behave differently when prefaced by
|
|
.Ic proxy :
|
|
.Ic open
|
|
will not define new macros during the auto-login process,
|
|
.Ic close
|
|
will not erase existing macro definitions,
|
|
.Ic get
|
|
and
|
|
.Ic mget
|
|
transfer files from the host on the primary control connection
|
|
to the host on the secondary control connection, and
|
|
.Ic put ,
|
|
.Ic mput ,
|
|
and
|
|
.Ic append
|
|
transfer files from the host on the secondary control connection
|
|
to the host on the primary control connection.
|
|
Third party file transfers depend upon support of the
|
|
.Tn FTP
|
|
protocol
|
|
.Dv PASV
|
|
command by the server on the secondary control connection.
|
|
.It Ic put Ar local-file Op Ar remote-file
|
|
Store a local file on the remote machine.
|
|
If
|
|
.Ar remote-file
|
|
is left unspecified, the local file name is used
|
|
after processing according to any
|
|
.Ic ntrans
|
|
or
|
|
.Ic nmap
|
|
settings
|
|
in naming the remote file.
|
|
File transfer uses the
|
|
current settings for
|
|
.Ic type ,
|
|
.Ic format ,
|
|
.Ic mode ,
|
|
and
|
|
.Ic structure .
|
|
.It Ic pwd
|
|
Print the name of the current working directory on the remote
|
|
machine.
|
|
.It Ic quit
|
|
A synonym for
|
|
.Ic bye .
|
|
.It Ic quote Ar arg1 arg2 ...
|
|
The arguments specified are sent, verbatim, to the remote
|
|
.Tn FTP
|
|
server.
|
|
.It Xo
|
|
.Ic rate Ar direction
|
|
.Op Ar maximum Op Ar increment
|
|
.Xc
|
|
Throttle the maximum transfer rate to
|
|
.Ar maximum
|
|
bytes/second.
|
|
If
|
|
.Ar maximum
|
|
is 0, disable the throttle.
|
|
.Pp
|
|
.Ar direction
|
|
may be one of:
|
|
.Bl -tag -width "all" -offset indent -compact
|
|
.It Cm all
|
|
Both directions.
|
|
.It Cm get
|
|
Incoming transfers.
|
|
.It Cm put
|
|
Outgoing transfers.
|
|
.El
|
|
.Pp
|
|
.Ar maximum
|
|
can be modified on the fly by
|
|
.Ar increment
|
|
bytes (default: 1024) each time a given signal is received:
|
|
.B
|
|
.Bl -tag -width "SIGUSR1" -offset indent
|
|
.It Dv SIGUSR1
|
|
Increment
|
|
.Ar maximum
|
|
by
|
|
.Ar increment
|
|
bytes.
|
|
.It Dv SIGUSR2
|
|
Decrement
|
|
.Ar maximum
|
|
by
|
|
.Ar increment
|
|
bytes.
|
|
The result must be a positive number.
|
|
.El
|
|
.Pp
|
|
If
|
|
.Ar maximum
|
|
is not supplied, the current throttle rates are displayed.
|
|
.Pp
|
|
Note:
|
|
.Ic rate
|
|
is not yet implemented for ascii mode transfers.
|
|
.It Ic rcvbuf Ar size
|
|
Set the size of the socket receive buffer to
|
|
.Ar size .
|
|
.It Ic recv Ar remote-file Op Ar local-file
|
|
A synonym for
|
|
.Ic get .
|
|
.It Ic reget Ar remote-file Op Ar local-file
|
|
.Ic reget
|
|
acts like
|
|
.Ic get ,
|
|
except that if
|
|
.Ar local-file
|
|
exists and is
|
|
smaller than
|
|
.Ar remote-file ,
|
|
.Ar local-file
|
|
is presumed to be
|
|
a partially transferred copy of
|
|
.Ar remote-file
|
|
and the transfer
|
|
is continued from the apparent point of failure.
|
|
This command
|
|
is useful when transferring very large files over networks that
|
|
are prone to dropping connections.
|
|
.It Ic remopts Ar command Op Ar command-options
|
|
Set options on the remote
|
|
.Tn FTP
|
|
server for
|
|
.Ar command
|
|
to
|
|
.Ar command-options
|
|
(whose absence is handled on a command-specific basis).
|
|
Remote
|
|
.Tn FTP
|
|
commands known to support options include:
|
|
.Sq MLST
|
|
(used for
|
|
.Dv MLSD
|
|
and
|
|
.Dv MLST ) .
|
|
.It Ic rename Op Ar from Op Ar to
|
|
Rename the file
|
|
.Ar from
|
|
on the remote machine, to the file
|
|
.Ar to .
|
|
.It Ic reset
|
|
Clear reply queue.
|
|
This command re-synchronizes command/reply sequencing with the remote
|
|
.Tn FTP
|
|
server.
|
|
Resynchronization may be necessary following a violation of the
|
|
.Tn FTP
|
|
protocol by the remote server.
|
|
.It Ic restart Ar marker
|
|
Restart the immediately following
|
|
.Ic get
|
|
or
|
|
.Ic put
|
|
at the
|
|
indicated
|
|
.Ar marker .
|
|
On
|
|
.Ux
|
|
systems, marker is usually a byte
|
|
offset into the file.
|
|
.It Ic rhelp Op Ar command-name
|
|
Request help from the remote
|
|
.Tn FTP
|
|
server.
|
|
If a
|
|
.Ar command-name
|
|
is specified it is supplied to the server as well.
|
|
.It Ic rmdir Ar directory-name
|
|
Delete a directory on the remote machine.
|
|
.It Ic rstatus Op Ar remote-file
|
|
With no arguments, show status of remote machine.
|
|
If
|
|
.Ar remote-file
|
|
is specified, show status of
|
|
.Ar remote-file
|
|
on remote machine.
|
|
.It Ic runique
|
|
Toggle storing of files on the local system with unique filenames.
|
|
If a file already exists with a name equal to the target
|
|
local filename for a
|
|
.Ic get
|
|
or
|
|
.Ic mget
|
|
command, a ".1" is appended to the name.
|
|
If the resulting name matches another existing file,
|
|
a ".2" is appended to the original name.
|
|
If this process continues up to ".99", an error
|
|
message is printed, and the transfer does not take place.
|
|
The generated unique filename will be reported.
|
|
Note that
|
|
.Ic runique
|
|
will not affect local files generated from a shell command
|
|
(see below).
|
|
The default value is off.
|
|
.It Ic send Ar local-file Op Ar remote-file
|
|
A synonym for
|
|
.Ic put .
|
|
.It Ic sendport
|
|
Toggle the use of
|
|
.Dv PORT
|
|
commands.
|
|
By default,
|
|
.Nm
|
|
will attempt to use a
|
|
.Dv PORT
|
|
command when establishing
|
|
a connection for each data transfer.
|
|
The use of
|
|
.Dv PORT
|
|
commands can prevent delays
|
|
when performing multiple file transfers.
|
|
If the
|
|
.Dv PORT
|
|
command fails,
|
|
.Nm
|
|
will use the default data port.
|
|
When the use of
|
|
.Dv PORT
|
|
commands is disabled, no attempt will be made to use
|
|
.Dv PORT
|
|
commands for each data transfer.
|
|
This is useful
|
|
for certain
|
|
.Tn FTP
|
|
implementations which do ignore
|
|
.Dv PORT
|
|
commands but, incorrectly, indicate they've been accepted.
|
|
.It Ic set Op Ar option Ar value
|
|
Set
|
|
.Ar option
|
|
to
|
|
.Ar value .
|
|
If
|
|
.Ar option
|
|
and
|
|
.Ar value
|
|
are not given, display all of the options and their values.
|
|
The currently supported options are:
|
|
.Bl -tag -width "http_proxy" -offset indent
|
|
.It Cm anonpass
|
|
Defaults to
|
|
.Ev $FTPANONPASS
|
|
.It Cm ftp_proxy
|
|
Defaults to
|
|
.Ev $ftp_proxy .
|
|
.It Cm http_proxy
|
|
Defaults to
|
|
.Ev $http_proxy .
|
|
.It Cm no_proxy
|
|
Defaults to
|
|
.Ev $no_proxy .
|
|
.It Cm pager
|
|
Defaults to
|
|
.Ev $PAGER .
|
|
.It Cm prompt
|
|
Defaults to
|
|
.Ev $FTPPROMPT .
|
|
.It Cm rprompt
|
|
Defaults to
|
|
.Ev $FTPRPROMPT .
|
|
.El
|
|
.It Ic site Ar arg1 arg2 ...
|
|
The arguments specified are sent, verbatim, to the remote
|
|
.Tn FTP
|
|
server as a
|
|
.Dv SITE
|
|
command.
|
|
.It Ic size Ar remote-file
|
|
Return size of
|
|
.Ar remote-file
|
|
on remote machine.
|
|
.It Ic sndbuf Ar size
|
|
Set the size of the socket send buffer to
|
|
.Ar size .
|
|
.It Ic status
|
|
Show the current status of
|
|
.Nm ftp .
|
|
.It Ic struct Ar struct-name
|
|
Set the file transfer
|
|
.Ar structure
|
|
to
|
|
.Ar struct-name .
|
|
The default (and only supported)
|
|
structure is
|
|
.Dq file .
|
|
.It Ic sunique
|
|
Toggle storing of files on remote machine under unique file names.
|
|
The remote
|
|
.Tn FTP
|
|
server must support
|
|
.Tn FTP
|
|
protocol
|
|
.Dv STOU
|
|
command for
|
|
successful completion.
|
|
The remote server will report unique name.
|
|
Default value is off.
|
|
.It Ic system
|
|
Show the type of operating system running on the remote machine.
|
|
.It Ic tenex
|
|
Set the file transfer type to that needed to
|
|
talk to
|
|
.Tn TENEX
|
|
machines.
|
|
.It Ic throttle
|
|
A synonym for
|
|
.Ic rate .
|
|
.It Ic trace
|
|
Toggle packet tracing.
|
|
.It Ic type Op Ar type-name
|
|
Set the file transfer
|
|
.Ic type
|
|
to
|
|
.Ar type-name .
|
|
If no type is specified, the current type
|
|
is printed.
|
|
The default type is network
|
|
.Tn ASCII .
|
|
.It Ic umask Op Ar newmask
|
|
Set the default umask on the remote server to
|
|
.Ar newmask .
|
|
If
|
|
.Ar newmask
|
|
is omitted, the current umask is printed.
|
|
.It Ic unset Ar option
|
|
Unset
|
|
.Ar option .
|
|
Refer to
|
|
.Ic set
|
|
for more information.
|
|
.It Ic usage Ar command
|
|
Print the usage message for
|
|
.Ar command .
|
|
.It Xo
|
|
.Ic user Ar user-name
|
|
.Op Ar password Op Ar account
|
|
.Xc
|
|
Identify yourself to the remote
|
|
.Tn FTP
|
|
server.
|
|
If the
|
|
.Ar password
|
|
is not specified and the server requires it,
|
|
.Nm
|
|
will prompt the user for it (after disabling local echo).
|
|
If an
|
|
.Ar account
|
|
field is not specified, and the
|
|
.Tn FTP
|
|
server
|
|
requires it, the user will be prompted for it.
|
|
If an
|
|
.Ar account
|
|
field is specified, an account command will
|
|
be relayed to the remote server after the login sequence
|
|
is completed if the remote server did not require it
|
|
for logging in.
|
|
Unless
|
|
.Nm
|
|
is invoked with
|
|
.Dq auto-login
|
|
disabled, this process is done automatically on initial connection to the
|
|
.Tn FTP
|
|
server.
|
|
.It Ic verbose
|
|
Toggle verbose mode.
|
|
In verbose mode, all responses from
|
|
the
|
|
.Tn FTP
|
|
server are displayed to the user.
|
|
In addition,
|
|
if verbose is on, when a file transfer completes, statistics
|
|
regarding the efficiency of the transfer are reported.
|
|
By default,
|
|
verbose is on.
|
|
.It Ic xferbuf Ar size
|
|
Set the size of the socket send and receive buffers to
|
|
.Ar size .
|
|
.It Ic \&? Op Ar command
|
|
A synonym for
|
|
.Ic help .
|
|
.El
|
|
.Pp
|
|
Command arguments which have embedded spaces may be quoted with
|
|
quote `"' marks.
|
|
.Pp
|
|
Commands which toggle settings can take an explicit
|
|
.Ic on
|
|
or
|
|
.Ic off
|
|
argument to force the setting appropriately.
|
|
.Pp
|
|
Commands which take a byte count as an argument
|
|
(e.g.,
|
|
.Ic hash ,
|
|
.Ic rate ,
|
|
and
|
|
.Ic xferbuf )
|
|
support an optional suffix on the argument which changes the
|
|
interpretation of the argument.
|
|
Supported suffixes are:
|
|
.Bl -tag -width 3n -offset indent -compact
|
|
.It Li b
|
|
Causes no modification.
|
|
(Optional)
|
|
.It Li k
|
|
Kilo; multiply the argument by 1024
|
|
.It Li m
|
|
Mega; multiply the argument by 1048576
|
|
.It Li g
|
|
Giga; multiply the argument by 1073741824
|
|
.El
|
|
.Pp
|
|
If
|
|
.Nm
|
|
receives a
|
|
.Dv SIGINFO
|
|
(see the
|
|
.Dq status
|
|
argument of
|
|
.Xr stty 1 )
|
|
or
|
|
.Dv SIGQUIT
|
|
signal whilst a transfer is in progress, the current transfer rate
|
|
statistics will be written to the standard error output, in the
|
|
same format as the standard completion message.
|
|
.Sh AUTO-FETCHING FILES
|
|
In addition to standard commands, this version of
|
|
.Nm
|
|
supports an auto-fetch feature.
|
|
To enable auto-fetch, simply pass the list of hostnames/files
|
|
on the command line.
|
|
.Pp
|
|
The following formats are valid syntax for an auto-fetch element:
|
|
.Bl -tag -width "FOO "
|
|
.\" [user@]host:[path][/]
|
|
.It Xo
|
|
.Sm off
|
|
.Op Ar user Li \&@
|
|
.Ar host Li \&:
|
|
.Op Ar path
|
|
.Op Li /
|
|
.Sm on
|
|
.Xc
|
|
.Dq Classic
|
|
.Tn FTP
|
|
format.
|
|
.Pp
|
|
If
|
|
.Ar path
|
|
contains a glob character and globbing is enabled,
|
|
(see
|
|
.Ic glob ) ,
|
|
then the equivalent of
|
|
.Ql mget path
|
|
is performed.
|
|
.Pp
|
|
If the directory component of
|
|
.Ar path
|
|
contains no globbing characters,
|
|
it is stored locally with the name basename (see
|
|
.Xr basename 1 )
|
|
of
|
|
.Ic path ,
|
|
in the current directory.
|
|
Otherwise, the full remote name is used as the local name,
|
|
relative to the local root directory.
|
|
.\" ftp://[user[:password]@]host[:port]/path[/][;type=X]
|
|
.It Xo
|
|
.Sm off
|
|
.Li ftp://
|
|
.Oo Ar user
|
|
.Op Li \&: Ar password
|
|
.Li \&@ Oc
|
|
.Ar host Oo Li \&: Ar port Oc
|
|
.Li / Ar path
|
|
.Op Li /
|
|
.Op Li ;type= Ar X
|
|
.Sm on
|
|
.Xc
|
|
An
|
|
.Tn FTP
|
|
URL, retrieved using the
|
|
.Tn FTP
|
|
protocol if
|
|
.Ic "set ftp_proxy"
|
|
isn't defined.
|
|
Otherwise, transfer the URL using
|
|
.Tn HTTP
|
|
via the proxy defined in
|
|
.Ic "set ftp_proxy" .
|
|
If
|
|
.Ic "set ftp_proxy"
|
|
isn't defined and
|
|
.Ar user
|
|
is given, login as
|
|
.Ar user .
|
|
In this case, use
|
|
.Ar password
|
|
if supplied, otherwise prompt the user for one.
|
|
.Pp
|
|
If a suffix of
|
|
.Sq ;type=A
|
|
or
|
|
.Sq ;type=I
|
|
is supplied, then the transfer type will take place as
|
|
ascii or binary (respectively).
|
|
The default transfer type is binary.
|
|
.Pp
|
|
In order to be compliant with
|
|
.Cm RFC 1738 ,
|
|
.Nm
|
|
interprets the
|
|
.Ar path
|
|
part of an
|
|
.Dq ftp://
|
|
auto-fetch URL as follows:
|
|
.Bl -bullet
|
|
.It
|
|
The
|
|
.Sq Li /
|
|
immediately after the
|
|
.Ar host Ns Oo Li \&: Ns Ar port Oc
|
|
is interpreted as a separator before the
|
|
.Ar path ,
|
|
and not as part of the
|
|
.Ar path
|
|
itself.
|
|
.It
|
|
The
|
|
.Ar path
|
|
is interpreted as a
|
|
.So Li / Sc Ns -separated
|
|
list of name components.
|
|
For all but the last such component,
|
|
.Nm
|
|
performs the equivalent of a
|
|
.Ic cd
|
|
command.
|
|
For the last path component,
|
|
.Nm
|
|
performs the equivalent of a
|
|
.Ic get
|
|
command.
|
|
.It
|
|
Empty name components,
|
|
which result from
|
|
.Sq Li //
|
|
within the
|
|
.Ar path ,
|
|
or from an extra
|
|
.Sq Li /
|
|
at the beginning of the
|
|
.Ar path ,
|
|
will cause the equivalent of a
|
|
.Ic cd
|
|
command without a directory name.
|
|
This is unlikely to be useful.
|
|
.It
|
|
Any
|
|
.Sq Li \&% Ns Ar XX
|
|
codes within the path components are decoded, with
|
|
.Ar XX
|
|
representing a character code in hexadecimal.
|
|
This decoding takes place after the
|
|
.Ar path
|
|
has been split into components,
|
|
but before each component is used in the equivalent of a
|
|
.Ic cd
|
|
or
|
|
.Ic get
|
|
command.
|
|
Some often-used codes are
|
|
.Sq Li \&%2F
|
|
(which represents
|
|
.Sq Li / )
|
|
and
|
|
.Sq Li \&%7E
|
|
(which represents
|
|
.Sq Li ~ ) .
|
|
.El
|
|
.Pp
|
|
The above interpretation has the following consequences:
|
|
.Bl -bullet
|
|
.It
|
|
The path is interpreted relative to the
|
|
default login directory of the specified user or of the
|
|
.Sq anonymous
|
|
user.
|
|
If the
|
|
.Pa /
|
|
directory is required, use a leading path of
|
|
.Dq %2F .
|
|
If a user's home directory is required (and the remote server supports
|
|
the syntax), use a leading path of
|
|
.Dq %7Euser/ .
|
|
For example, to retrieve
|
|
.Pa /etc/motd
|
|
from
|
|
.Sq localhost
|
|
as the user
|
|
.Sq myname
|
|
with the password
|
|
.Sq mypass ,
|
|
use
|
|
.Dq ftp://myname:mypass@localhost/%2fetc/motd
|
|
.It
|
|
The exact
|
|
.Ic cd
|
|
and
|
|
.Ic get
|
|
commands can be controlled by careful choice of
|
|
where to use
|
|
.Sq /
|
|
and where to use
|
|
.Sq %2F
|
|
(or
|
|
.Sq %2f ) .
|
|
For example, the following URLs correspond to the
|
|
equivalents of the indicated commands:
|
|
.Bl -tag -width "ftp://host/%2Fdir1%2Fdir2%2Ffile"
|
|
.It ftp://host/dir1/dir2/file
|
|
.Dq "cd dir1" ,
|
|
.Dq "cd dir2" ,
|
|
.Dq "get file" .
|
|
.It ftp://host/%2Fdir1/dir2/file
|
|
.Dq "cd /dir1" ,
|
|
.Dq "cd dir2" ,
|
|
.Dq "get file" .
|
|
.It ftp://host/dir1%2Fdir2/file
|
|
.Dq "cd dir1/dir2" ,
|
|
.Dq "get file" .
|
|
.It ftp://host/%2Fdir1%2Fdir2/file
|
|
.Dq "cd /dir1/dir2" ,
|
|
.Dq "get file" .
|
|
.It ftp://host/dir1%2Fdir2%2Ffile
|
|
.Dq "get dir1/dir2/file" .
|
|
.It ftp://host/%2Fdir1%2Fdir2%2Ffile
|
|
.Dq "get /dir1/dir2/file" .
|
|
.El
|
|
.It
|
|
You must have appropriate access permission for each of the
|
|
intermediate directories that is used in the equivalent of a
|
|
.Ic cd
|
|
command.
|
|
.El
|
|
.\" http://[user[:password]@]host[:port]/path
|
|
.It Xo
|
|
.Sm off
|
|
.Li http://
|
|
.Oo Ar user
|
|
.Op Li \&: Ar password
|
|
.Li \&@ Oc
|
|
.Ar host Oo Li \&: Ar port Oc
|
|
.Li / Ar path
|
|
.Sm on
|
|
.Xc
|
|
An
|
|
.Tn HTTP
|
|
URL, retrieved using the
|
|
.Tn HTTP
|
|
protocol.
|
|
If
|
|
.Ic "set http_proxy"
|
|
is defined, it is used as a URL to an
|
|
.Tn HTTP
|
|
proxy server.
|
|
If
|
|
.Tn HTTP
|
|
authorization is required to retrieve
|
|
.Ar path ,
|
|
and
|
|
.Sq user
|
|
(and optionally
|
|
.Sq password )
|
|
is in the URL, use them for the first attempt to authenticate.
|
|
.\" file:///path
|
|
.It Xo
|
|
.Sm off
|
|
.Li file:/// Ar path
|
|
.Sm on
|
|
.Xc
|
|
A local URL, copied from
|
|
.Pa / Ns Ar path
|
|
on the local host.
|
|
.El
|
|
.Pp
|
|
Unless noted otherwise above, and
|
|
.Fl o Ar output
|
|
is not given, the file is stored in the current directory as the
|
|
.Xr basename 1
|
|
of
|
|
.Ar path .
|
|
Note that if a
|
|
.Tn HTTP
|
|
redirect is received, the fetch is retried using the new target URL
|
|
supplied by the server, with a corresponding new
|
|
.Ar path .
|
|
Using an explicit
|
|
.Fl o Ar output
|
|
is recommended, to avoid writing to unexpected file names.
|
|
.Pp
|
|
If a classic format or an
|
|
.Tn FTP
|
|
URL format has a trailing
|
|
.Sq /
|
|
or an empty
|
|
.Ar path
|
|
component, then
|
|
.Nm
|
|
will connect to the site and
|
|
.Ic cd
|
|
to the directory given as the path, and leave the user in interactive
|
|
mode ready for further input.
|
|
This will not work if
|
|
.Ic "set ftp_proxy"
|
|
is being used.
|
|
.Pp
|
|
Direct
|
|
.Tn HTTP
|
|
transfers use HTTP 1.1.
|
|
Proxied
|
|
.Tn FTP
|
|
and
|
|
.Tn HTTP
|
|
transfers use HTTP 1.0.
|
|
.Pp
|
|
If
|
|
.Fl R
|
|
is given, all auto-fetches that don't go via the
|
|
.Tn FTP
|
|
or
|
|
.Tn HTTP
|
|
proxies will be restarted.
|
|
For
|
|
.Tn FTP ,
|
|
this is implemented by using
|
|
.Nm reget
|
|
instead of
|
|
.Nm get .
|
|
For
|
|
.Tn HTTP ,
|
|
this is implemented by using the
|
|
.Sq "Range: bytes="
|
|
.Tn "HTTP/1.1"
|
|
directive.
|
|
.Pp
|
|
If WWW or proxy WWW authentication is required, you will be prompted
|
|
to enter a username and password to authenticate with.
|
|
.Pp
|
|
When specifying IPv6 numeric addresses in a URL, you need to
|
|
surround the address in square brackets.
|
|
E.g.:
|
|
.Dq ftp://[::1]:21/ .
|
|
This is because colons are used in IPv6 numeric address as well as
|
|
being the separator for the port number.
|
|
.Sh ABORTING A FILE TRANSFER
|
|
To abort a file transfer, use the terminal interrupt key
|
|
(usually Ctrl-C).
|
|
Sending transfers will be immediately halted.
|
|
Receiving transfers will be halted by sending an
|
|
.Tn FTP
|
|
protocol
|
|
.Dv ABOR
|
|
command to the remote server, and discarding any further data received.
|
|
The speed at which this is accomplished depends upon the remote
|
|
server's support for
|
|
.Dv ABOR
|
|
processing.
|
|
If the remote server does not support the
|
|
.Dv ABOR
|
|
command, the prompt will not appear until the remote server has completed
|
|
sending the requested file.
|
|
.Pp
|
|
If the terminal interrupt key sequence is used whilst
|
|
.Nm
|
|
is awaiting a reply from the remote server for the ABOR processing,
|
|
then the connection will be closed.
|
|
This is different from the traditional behaviour (which ignores the
|
|
terminal interrupt during this phase), but is considered more useful.
|
|
.Sh FILE NAMING CONVENTIONS
|
|
Files specified as arguments to
|
|
.Nm
|
|
commands are processed according to the following rules.
|
|
.Bl -enum
|
|
.It
|
|
If the file name
|
|
.Sq Fl
|
|
is specified, the
|
|
.Ar stdin
|
|
(for reading) or
|
|
.Ar stdout
|
|
(for writing) is used.
|
|
.It
|
|
If the first character of the file name is
|
|
.Sq \&| ,
|
|
the
|
|
remainder of the argument is interpreted as a shell command.
|
|
.Nm
|
|
then forks a shell, using
|
|
.Xr popen 3
|
|
with the argument supplied, and reads (writes) from the stdout
|
|
(stdin).
|
|
If the shell command includes spaces, the argument
|
|
must be quoted; e.g.
|
|
.Dq Qq Li \&| ls\ \-lt .
|
|
A particularly
|
|
useful example of this mechanism is:
|
|
.Dq Li dir \&"\&" \&|more .
|
|
.It
|
|
Failing the above checks, if ``globbing'' is enabled,
|
|
local file names are expanded
|
|
according to the rules used in the
|
|
.Xr csh 1 ;
|
|
c.f. the
|
|
.Ic glob
|
|
command.
|
|
If the
|
|
.Nm
|
|
command expects a single local file (e.g.
|
|
.Ic put ) ,
|
|
only the first filename generated by the "globbing" operation is used.
|
|
.It
|
|
For
|
|
.Ic mget
|
|
commands and
|
|
.Ic get
|
|
commands with unspecified local file names, the local filename is
|
|
the remote filename, which may be altered by a
|
|
.Ic case ,
|
|
.Ic ntrans ,
|
|
or
|
|
.Ic nmap
|
|
setting.
|
|
The resulting filename may then be altered if
|
|
.Ic runique
|
|
is on.
|
|
.It
|
|
For
|
|
.Ic mput
|
|
commands and
|
|
.Ic put
|
|
commands with unspecified remote file names, the remote filename is
|
|
the local filename, which may be altered by a
|
|
.Ic ntrans
|
|
or
|
|
.Ic nmap
|
|
setting.
|
|
The resulting filename may then be altered by the remote server if
|
|
.Ic sunique
|
|
is on.
|
|
.El
|
|
.Sh FILE TRANSFER PARAMETERS
|
|
The
|
|
.Tn FTP
|
|
specification specifies many parameters which may affect a file transfer.
|
|
The
|
|
.Ic type
|
|
may be one of
|
|
.Dq ascii ,
|
|
.Dq image
|
|
(binary),
|
|
.Dq ebcdic ,
|
|
and
|
|
.Dq local byte size
|
|
(for
|
|
.Tn PDP Ns -10's
|
|
and
|
|
.Tn PDP Ns -20's
|
|
mostly).
|
|
.Nm
|
|
supports the ascii and image types of file transfer,
|
|
plus local byte size 8 for
|
|
.Ic tenex
|
|
mode transfers.
|
|
.Pp
|
|
.Nm
|
|
supports only the default values for the remaining
|
|
file transfer parameters:
|
|
.Ic mode ,
|
|
.Ic form ,
|
|
and
|
|
.Ic struct .
|
|
.Sh THE .netrc FILE
|
|
The
|
|
.Pa .netrc
|
|
file contains login and initialization information
|
|
used by the auto-login process.
|
|
It resides in the user's home directory,
|
|
unless overridden with the
|
|
.Fl N Ar netrc
|
|
option, or specified in the
|
|
.Ev NETRC
|
|
environment variable.
|
|
The following tokens are recognized; they may be separated by spaces,
|
|
tabs, or new-lines:
|
|
.Bl -tag -width password
|
|
.It Ic machine Ar name
|
|
Identify a remote machine
|
|
.Ar name .
|
|
The auto-login process searches the
|
|
.Pa .netrc
|
|
file for a
|
|
.Ic machine
|
|
token that matches the remote machine specified on the
|
|
.Nm
|
|
command line or as an
|
|
.Ic open
|
|
command argument.
|
|
Once a match is made, the subsequent
|
|
.Pa .netrc
|
|
tokens are processed,
|
|
stopping when the end of file is reached or another
|
|
.Ic machine
|
|
or a
|
|
.Ic default
|
|
token is encountered.
|
|
.It Ic default
|
|
This is the same as
|
|
.Ic machine
|
|
.Ar name
|
|
except that
|
|
.Ic default
|
|
matches any name.
|
|
There can be only one
|
|
.Ic default
|
|
token, and it must be after all
|
|
.Ic machine
|
|
tokens.
|
|
This is normally used as:
|
|
.Pp
|
|
.Dl default login anonymous password user@site
|
|
.Pp
|
|
thereby giving the user an automatic anonymous
|
|
.Tn FTP
|
|
login to
|
|
machines not specified in
|
|
.Pa .netrc .
|
|
This can be overridden
|
|
by using the
|
|
.Fl n
|
|
flag to disable auto-login.
|
|
.It Ic login Ar name
|
|
Identify a user on the remote machine.
|
|
If this token is present, the auto-login process will initiate
|
|
a login using the specified
|
|
.Ar name .
|
|
.It Ic password Ar string
|
|
Supply a password.
|
|
If this token is present, the auto-login process will supply the
|
|
specified string if the remote server requires a password as part
|
|
of the login process.
|
|
Note that if this token is present in the
|
|
.Pa .netrc
|
|
file for any user other
|
|
than
|
|
.Ar anonymous ,
|
|
.Nm
|
|
will abort the auto-login process if the
|
|
.Pa .netrc
|
|
is readable by
|
|
anyone besides the user.
|
|
.It Ic account Ar string
|
|
Supply an additional account password.
|
|
If this token is present, the auto-login process will supply the
|
|
specified string if the remote server requires an additional
|
|
account password, or the auto-login process will initiate an
|
|
.Dv ACCT
|
|
command if it does not.
|
|
.It Ic macdef Ar name
|
|
Define a macro.
|
|
This token functions like the
|
|
.Nm
|
|
.Ic macdef
|
|
command functions.
|
|
A macro is defined with the specified name; its contents begin with the
|
|
next
|
|
.Pa .netrc
|
|
line and continue until a blank line (consecutive new-line
|
|
characters) is encountered.
|
|
If a macro named
|
|
.Ic init
|
|
is defined, it is automatically executed as the last step in the
|
|
auto-login process.
|
|
For example,
|
|
.Bd -literal -offset indent
|
|
default
|
|
macdef init
|
|
epsv4 off
|
|
.Ed
|
|
.Pp
|
|
followed by a blank line.
|
|
.El
|
|
.Sh COMMAND LINE EDITING
|
|
.Nm
|
|
supports interactive command line editing, via the
|
|
.Xr editline 3
|
|
library.
|
|
It is enabled with the
|
|
.Ic edit
|
|
command, and is enabled by default if input is from a tty.
|
|
Previous lines can be recalled and edited with the arrow keys,
|
|
and other GNU Emacs-style editing keys may be used as well.
|
|
.Pp
|
|
The
|
|
.Xr editline 3
|
|
library is configured with a
|
|
.Pa .editrc
|
|
file - refer to
|
|
.Xr editrc 5
|
|
for more information.
|
|
.Pp
|
|
An extra key binding is available to
|
|
.Nm
|
|
to provide context sensitive command and filename completion
|
|
(including remote file completion).
|
|
To use this, bind a key to the
|
|
.Xr editline 3
|
|
command
|
|
.Ic ftp-complete .
|
|
By default, this is bound to the TAB key.
|
|
.Sh COMMAND LINE PROMPT
|
|
By default,
|
|
.Nm
|
|
displays a command line prompt of
|
|
.Dq "ftp\*[Gt] "
|
|
to the user.
|
|
This can be changed with the
|
|
.Ic "set prompt"
|
|
command.
|
|
.Pp
|
|
A prompt can be displayed on the right side of the screen (after the
|
|
command input) with the
|
|
.Ic "set rprompt"
|
|
command.
|
|
.Pp
|
|
The following formatting sequences are replaced by the given
|
|
information:
|
|
.Bl -tag -width "%% " -offset indent
|
|
.It Li \&%/
|
|
The current remote working directory.
|
|
.\" %c[[0]n], %.[[0]n]
|
|
.It Xo
|
|
.Sm off
|
|
.Li \&%c
|
|
.Op Oo Li 0 Oc Ar n Ns ,
|
|
.Li \&%.
|
|
.Op Oo Li 0 Oc Ar n
|
|
.Sm on
|
|
.Xc
|
|
The trailing component of the current remote working directory, or
|
|
.Em n
|
|
trailing components if a digit
|
|
.Em n
|
|
is given.
|
|
If
|
|
.Em n
|
|
begins with
|
|
.Sq 0 ,
|
|
the number of skipped components precede the trailing component(s) in
|
|
the format
|
|
.\" ``/<number>trailing''
|
|
.Do
|
|
.Sm off
|
|
.Li / Li \*[Lt] Va number Li \*[Gt]
|
|
.Va trailing
|
|
.Sm on
|
|
.Dc
|
|
(for
|
|
.Sq \&%c )
|
|
or
|
|
.\" ``...trailing''
|
|
.Dq Li \&... Ns Va trailing
|
|
(for
|
|
.Sq \&%. ) .
|
|
.It Li \&%M
|
|
The remote host name.
|
|
.It Li \&%m
|
|
The remote host name, up to the first
|
|
.Sq \&. .
|
|
.It Li \&%n
|
|
The remote user name.
|
|
.It Li \&%%
|
|
A single
|
|
.Sq % .
|
|
.El
|
|
.Sh ENVIRONMENT
|
|
.Nm
|
|
uses the following environment variables.
|
|
.Bl -tag -width "FTPSERVERPORT"
|
|
.It Ev FTPANONPASS
|
|
Password to send in an anonymous
|
|
.Tn FTP
|
|
transfer.
|
|
Defaults to
|
|
.Dq Li `whoami`@ .
|
|
.It Ev FTPMODE
|
|
Overrides the default operation mode.
|
|
Support values are:
|
|
.Bl -tag -width "passive"
|
|
.It Cm active
|
|
active mode
|
|
.Tn FTP
|
|
only
|
|
.It Cm auto
|
|
automatic determination of passive or active (this is the default)
|
|
.It Cm gate
|
|
gate-ftp mode
|
|
.It Cm passive
|
|
passive mode
|
|
.Tn FTP
|
|
only
|
|
.El
|
|
.It Ev FTPPROMPT
|
|
Command-line prompt to use.
|
|
Defaults to
|
|
.Dq "ftp\*[Gt] " .
|
|
Refer to
|
|
.Sx COMMAND LINE PROMPT
|
|
for more information.
|
|
.It Ev FTPRPROMPT
|
|
Command-line right side prompt to use.
|
|
Defaults to
|
|
.Dq "" .
|
|
Refer to
|
|
.Sx COMMAND LINE PROMPT
|
|
for more information.
|
|
.It Ev FTPSERVER
|
|
Host to use as gate-ftp server when
|
|
.Ic gate
|
|
is enabled.
|
|
.It Ev FTPSERVERPORT
|
|
Port to use when connecting to gate-ftp server when
|
|
.Ic gate
|
|
is enabled.
|
|
Default is port returned by a
|
|
.Fn getservbyname
|
|
lookup of
|
|
.Dq ftpgate/tcp .
|
|
.It Ev FTPUSERAGENT
|
|
The value to send for the
|
|
.Tn HTTP
|
|
User-Agent
|
|
header.
|
|
.It Ev HOME
|
|
For default location of a
|
|
.Pa .netrc
|
|
file, if one exists.
|
|
.It Ev NETRC
|
|
An alternate location of the
|
|
.Pa .netrc
|
|
file.
|
|
.It Ev PAGER
|
|
Used by various commands to display files.
|
|
Defaults to
|
|
.Xr more 1
|
|
if empty or not set.
|
|
.It Ev SHELL
|
|
For default shell.
|
|
.It Ev ftp_proxy
|
|
URL of
|
|
.Tn FTP
|
|
proxy to use when making
|
|
.Tn FTP
|
|
URL requests
|
|
(if not defined, use the standard
|
|
.Tn FTP
|
|
protocol).
|
|
.Pp
|
|
.Em NOTE :
|
|
this is not used for interactive sessions, only for command-line
|
|
fetches.
|
|
.It Ev http_proxy
|
|
URL of
|
|
.Tn HTTP
|
|
proxy to use when making
|
|
.Tn HTTP
|
|
URL requests.
|
|
If proxy authentication is required and there is a username and
|
|
password in this URL, they will automatically be used in the first
|
|
attempt to authenticate to the proxy.
|
|
.Pp
|
|
Note that the use of a username and password in
|
|
.Ev ftp_proxy
|
|
and
|
|
.Ev http_proxy
|
|
may be incompatible with other programs that use it
|
|
(such as
|
|
.Xr lynx 1 ) .
|
|
.Pp
|
|
.Em NOTE :
|
|
this is not used for interactive sessions, only for command-line
|
|
fetches.
|
|
.It Ev no_proxy
|
|
A space or comma separated list of hosts (or domains) for which
|
|
proxying is not to be used.
|
|
Each entry may have an optional trailing ":port", which restricts
|
|
the matching to connections to that port.
|
|
.El
|
|
.Sh EXTENDED PASSIVE MODE AND FIREWALLS
|
|
Some firewall configurations do not allow
|
|
.Nm
|
|
to use extended passive mode.
|
|
If you find that even a simple
|
|
.Ic ls
|
|
appears to hang after printing a message such as this:
|
|
.Pp
|
|
.Dl 229 Entering Extended Passive Mode (|||58551|)
|
|
.Pp
|
|
then you will need to disable extended passive mode with
|
|
.Ic epsv4 off .
|
|
See the above section
|
|
.Sx The .netrc File
|
|
for an example of how to make this automatic.
|
|
.Sh SEE ALSO
|
|
.Xr getservbyname 3 ,
|
|
.Xr editrc 5 ,
|
|
.Xr services 5 ,
|
|
.Xr ftpd 8
|
|
.Sh STANDARDS
|
|
.Nm
|
|
attempts to be compliant with
|
|
.Cm RFC 959 ,
|
|
.Cm RFC 1123 ,
|
|
.Cm RFC 1738 ,
|
|
.Cm RFC 2068 ,
|
|
.Cm RFC 2389 ,
|
|
.Cm RFC 2428 ,
|
|
.Cm RFC 2732 ,
|
|
and
|
|
.Cm draft-ietf-ftpext-mlst-11 .
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
command appeared in
|
|
.Bx 4.2 .
|
|
.Pp
|
|
Various features such as command line editing, context sensitive
|
|
command and file completion, dynamic progress bar, automatic
|
|
fetching of files and URLs, modification time preservation,
|
|
transfer rate throttling, configurable command line prompt,
|
|
and other enhancements over the standard
|
|
.Bx
|
|
.Nm
|
|
were implemented in
|
|
.Nx 1.3
|
|
and later releases
|
|
by
|
|
.An Luke Mewburn
|
|
.Aq lukem@NetBSD.org .
|
|
.Pp
|
|
IPv6 support was added by the WIDE/KAME project
|
|
(but may not be present in all non-NetBSD versions of this program, depending
|
|
if the operating system supports IPv6 in a similar manner to KAME).
|
|
.Sh BUGS
|
|
Correct execution of many commands depends upon proper behavior
|
|
by the remote server.
|
|
.Pp
|
|
An error in the treatment of carriage returns
|
|
in the
|
|
.Bx 4.2
|
|
ascii-mode transfer code
|
|
has been corrected.
|
|
This correction may result in incorrect transfers of binary files
|
|
to and from
|
|
.Bx 4.2
|
|
servers using the ascii type.
|
|
Avoid this problem by using the binary image type.
|
|
.Pp
|
|
.Nm
|
|
assumes that all IPv4 mapped addresses
|
|
.Po
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IPv6 addresses with a form like
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.Li ::ffff:10.1.1.1
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.Pc
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indicate IPv4 destinations which can be handled by
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.Dv AF_INET
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sockets.
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However, in certain IPv6 network configurations, this assumption is not true.
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In such an environment, IPv4 mapped addresses must be passed to
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.Dv AF_INET6
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sockets directly.
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For example, if your site uses a SIIT translator for IPv6-to-IPv4 translation,
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.Nm
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is unable to support your configuration.
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