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Full Discussion: return ftp status
Top Forums Shell Programming and Scripting return ftp status Post 23352 by Perderabo on Friday 21st of June 2002 12:47:36 PM
Old 06-21-2002
The 226 is consistent. The text that follows it is not. As the rfc says:
Quote:
It is intended that the three digits contain enough encoded information that the user-process (the User-PI) will not need to examine the text and may either discard it or pass it on to the user, as appropriate. In particular, the text may be server-dependent, so there are likely to be varying texts for each reply code.
If you get a 226 in response to a request for a transfer, the server is trying to tell you that it succeeded.

226 Transfer Complete
226 Closing Data Connection

mean almost the same thing. After a successful tranfer, the rfc allows a sever to keep a data connection open and re-use it for the next transfer. This is rarely done and the second message is underscoring that it wasn't done.

226 Everything's Groovy
226 That worked
226 looks good to me

would all be legal ways for a server to tell you that the transfer completed successfully. I've never seen anyone do that, but English is certainly not required by the rfc.

You really should read that RFC that I linked to in my earlier post. It will tell you what a server can and cannot do. The whole section on reply codes would especially help you out.
 

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smtp(n) 							    smtp client 							   smtp(n)

__________________________________________________________________________________________________________________________________________________

NAME
smtp - Client-side tcl implementation of the smtp protocol SYNOPSIS
package require Tcl package require mime ?1.5.4? package require smtp ?1.4.5? ::smtp::sendmessage token option... _________________________________________________________________ DESCRIPTION
The smtp library package provides the client side of the Simple Mail Transfer Protocol (SMTP) (1) (2). ::smtp::sendmessage token option... This command sends the MIME part (see package mime) represented by token to an SMTP server. options is a list of options and their associated values. The recognized options are: -servers A list of SMTP servers. The default is localhost. -ports A list of SMTP ports. The default is 25. -client The name to use as our hostname when connecting to the server. By default this is either localhost if one of the servers is localhost, or is set to the string returned by info hostname. -queue Indicates that the SMTP server should be asked to queue the message for later processing. A boolean value. -atleastone Indicates that the SMTP server must find at least one recipient acceptable for the message to be sent. A boolean value. -originator A string containing an 822-style address specification. If present the header isn't examined for an originator address. -recipients A string containing one or more 822-style address specifications. If present the header isn't examined for recipient addresses). If the string contains more than one address they will be separated by commas. -header A list of keywords and their values (may occur zero or more times). -usetls This package supports the RFC 3207 TLS extension (3) by default provided the tls package is available. You can turn this off with this boolean option. -tlspolicy This option lets you specify a command to be called if an error occurs during TLS setup. The command is called with the SMTP code and diagnostic message appended. The command should return 'secure' or 'insecure' where insecure will cause the package to continue on the unencrypted channel. Returning 'secure' will cause the socket to be closed and the next server in the -servers list to be tried. -username -password If your SMTP server requires authentication (RFC 2554 (4)) before accepting mail you can use -username and -password to pro- vide your authentication details to the server. Currently this package supports DIGEST-MD5, CRAM-MD5, LOGIN and PLAIN authen- tication methods. The most secure method will be tried first and each method tried in turn until we are either authorized or we run out of methods. Note that if the server permits a TLS connection, then the authorization will occur after we begin using the secure channel. If the -originator option is not present, the originator address is taken from From (or Resent-From); similarly, if the -recipients option is not present, recipient addresses are taken from To, cc, and Bcc (or Resent-To, and so on). Note that the header key/values supplied by the -header option (not those present in the MIME part) are consulted. Regardless, header key/values are added to the outgoing message as necessary to ensure that a valid 822-style message is sent. The command returns a list indicating which recipients were unacceptable to the SMTP server. Each element of the list is another list, con- taining the address, an SMTP error code, and a textual diagnostic. Depending on the -atleastone option and the intended recipients, a non- empty list may still indicate that the message was accepted by the server. EXAMPLE
proc send_simple_message {recipient email_server subject body} { package require smtp package require mime set token [mime::initialize -canonical text/plain \ -string $body] mime::setheader $token Subject $subject smtp::sendmessage $token \ -recipients $recipient -servers $email_server mime::finalize $token } send_simple_message someone@somewhere.com localhost \ "This is the subject." "This is the message." REFERENCES
[1] Jonathan B. Postel, "SIMPLE MAIL TRANSFER PROTOCOL", RFC 821, August 1982. (http://www.rfc-editor.org/rfc/rfc821.txt) [2] J. Klensin, "Simple Mail Transfer Protocol", RFC 2821, April 2001. (http://www.rfc-editor.org/rfc/rfc2821.txt) [3] P. Hoffman, "SMTP Service Extension for Secure SMTP over Transport Layer Security", RFC 3207, February 2002. (http://www.rfc-edi- tor.org/rfc/rfc3207.txt) [4] J. Myers, "SMTP Service Extension for Authentication", RFC 2554, March 1999. (http://www.rfc-editor.org/rfc/rfc2554.txt) BUGS, IDEAS, FEEDBACK This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category smtp of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for either package and/or documentation. SEE ALSO
ftp, http, mime, pop3 KEYWORDS
email, internet, mail, mime, net, rfc 2554, rfc 2821, rfc 3207, rfc 821, rfc 822, smtp, tls COPYRIGHT
Copyright (c) 1999-2000 Marshall T. Rose and others mime 1.4.5 smtp(n)
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