Checking the lftp site, it seems that lftp is perhaps superior to ncftp
in some ways.
I wonder though, is it possible to write a wrapper for lftp so that it
can emulate ncftp? I'm all for taking the latest improvements from the
open source community, but I still think it would be "nice" to minimize
the number of different implementations of what is really the same
functionality that we have in Solaris.
A couple more questions:
1) What is the FISH protocol? (Never heard of it.)
2) Are there any deficiencies in lftp versus ncftp that would force
us to retain the ncftp to avoid feature gap?
3) Given the availability of superior tools (lftp, ncftp), does it
make sense to obsolete the actual "ftp" command, possibly replacing it
with a script to call lftp or ncftp? (This also begs the question about
whether one or the other of lftp or ncftp are true superset of ftp. A
question to which I don't know the answer as I don't really use either
tool any more.) (I also realize that this is "not this case", but still
would like to have the info from the project team.)
4) I guess the same question could ultimately be raised about sftp
as well. Although, see question 5 below.
And one "non-architectural" question (really a CTeam question), but
still worth knowing the answer to:
5) Given that lftp supports SFTP, HTTPS, FTPS (all of which are
"secured protocols", has anyone done any checks in the code for secure
programming practices? IMO, its important to ensure this new tool
can't be used as an attack vector to weaken the security protections
offered by those secured protocols. And if this may be used by root
users (e.g. in automated scripts), then it is also important.
-- Garrett
Daniel Hain wrote:
> I am sponsoring this case for Martina Tomisova. Timeout is set for 5/02/2008.
> Man pages and the default configuration file are in the case directory.
>
>
> Template Version: @(#)sac_nextcase 1.66 04/17/08 SMI
> This information is Copyright 2008 Sun Microsystems
> 1. Introduction
> 1.1. Project/Component Working Name:
> Integrate lftp into Solaris
> 1.2. Name of Document Author/Supplier:
> Author: Martina Tomisova
> 1.3 Date of This Document:
> 25 April, 2008
> 4. Technical Description
> Proposal:
>
> Integrate lftp into Solaris.
>
> Detail:
>
> LFTP is sophisticated file transfer program with command line
> interface. It supports FTP, HTTP, FISH, SFTP, HTTPS and FTPS
> protocols.
>
> Every operation in lftp is reliable, that is any non-fatal error
> is handled and the operation is retried automatically.
>
> LFTP has shell-like command syntax allowing you to launch
> several commands in parallel in background (&) etc. If you exit
> lftp when some jobs are not finished yet, lftp will move itself
> to nohup mode in background. The same happens when you have a
> real modem hangup or when you close an xterm. LFTP has builtin
> mirror which can download or update a whole directory tree.
>
> There is command 'at' to launch a job at specified time in
> current context, command 'queue' to queue commands for
> sequential execution for current server, and much more.
>
> LFTP supports IPv6 for both FTP and HTTP protocols. LFTP
> supports secure versions of the protocols FTP and HTTP: FTPS
> (explicit and implicit) and HTTPS.
>
> The current version of lftp is 3.6.3 at the time of this case.
>
> Deliverables:
> /etc/lftp.conf
> /usr/share/man/man1/lftp.1
> /usr/share/man/man1/lftpget.1
> /usr/share/lftp/verify-file
> /usr/share/lftp/import-netscape
> /usr/share/lftp/import-ncftp
> /usr/share/lftp/convert-netscape-cookies
> /usr/bin/lftpget
> /usr/bin/lftp
>
> Exported Interfaces:
>
> SUNWlftpr Uncommitted Package name
> SUNWlftpu Uncommitted Package name
> /usr/bin/lftp Committed Executable location
> /usr/bin/lftpget Committed Executable location
> lftp Uncommitted Commandline syntax
> lftpget Uncommitted Commandline syntax
>
>
> Imported Interfaces:
>
> SUNWlexpt Libraries (libexpat.so.1)
> SUNWgnutls Libraries (libgnutls.so.13)
> SUNWlibgcrypt Libraries (libgcrypt.so.11)
> SUNWlibgpg-error Libraries (libgpg-error.so.0)
> SUNWlibC Libraries (libCstd.so.1, libCrun.so.1,
> libCstd_isa.so.1)
> SUNWlibms Libraries (libm.so.2)
> SUNWzlib Libraries (libz.so.1)
> SUNWperl584usr To run scripts (perl)
> SUNWgzip Called from scripts (gzip)
> SUNWbzip Called from scripts (bzip)
> SUNWunzip Called from scripts (unzip)
> SUNWrpm Called from scripts (rpm)
>
>
> References:
>
> [1] http://lftp.yar.ru/
> Author of lftp: Alexander V. Lukyanov
> [2] 6676677 Integrate lftp into Solaris.
>
>
> 6. Resources and Schedule
> 6.4. Steering Committee requested information
> 6.4.1. Consolidation C-team Name:
> sfw
> 6.5. ARC review type: FastTrack
> 6.6. ARC Exposure: open
>
>
