121 lines
3.7 KiB
HTML
121 lines
3.7 KiB
HTML
<html>
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<head><title>smfi_setreply</title></head>
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<body>
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<!--
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$Id: smfi_setreply.html,v 1.14 2003/11/16 05:04:01 ca Exp $
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-->
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<h1>smfi_setreply</h1>
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<table border="0" cellspacing=4 cellpadding=4>
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<!---------- Synopsis ----------->
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<tr><th valign="top" align=left width=150>SYNOPSIS</th><td>
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<pre>
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#include <libmilter/mfapi.h>
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int smfi_setreply(
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SMFICTX *ctx,
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char *rcode,
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char *xcode,
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char *message
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);
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</pre>
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Set the default SMTP error reply code. Only 4XX and 5XX replies are accepted.
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</td></tr>
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<!----------- Description ---------->
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<tr><th valign="top" align=left>DESCRIPTION</th><td>
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<table border="1" cellspacing=1 cellpadding=4>
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<tr align="left" valign=top>
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<th width="80">Called When</th>
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<td>smfi_setreply may be called from any of the xxfi_ callbacks
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other than xxfi_connect.</td>
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</tr>
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<tr align="left" valign=top>
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<th width="80">Effects</th>
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<td>Directly set the SMTP error reply code for this connection. This code
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will be used on subsequent error replies resulting from actions taken by
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this filter.</td>
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</tr>
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</table>
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<!----------- Arguments ---------->
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<tr><th valign="top" align=left>ARGUMENTS</th><td>
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<table border="1" cellspacing=0>
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<tr bgcolor="#dddddd"><th>Argument</th><th>Description</th></tr>
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<tr valign="top"><td>ctx</td>
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<td>Opaque context structure.
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</td></tr>
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<tr valign="top"><td>rcode</td>
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<td>The three-digit (RFC 821/2821) SMTP reply code, as a
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null-terminated string. rcode cannot be NULL, and must be a valid
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4XX or 5XX reply code.
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</td></tr>
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<tr valign="top"><td>xcode</td>
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<td>The extended (RFC 1893/2034) reply code. If xcode is NULL, no
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extended code is used. Otherwise, xcode must conform to RFC 1893/2034.
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</td></tr>
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<tr valign="top"><td>message</td>
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<td>The text part of the SMTP reply. If message is NULL, an empty message is used.
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</td></tr>
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</table>
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</td></tr>
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<!----------- Return values ---------->
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<tr>
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<th valign="top" align=left>RETURN VALUES</th>
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<td>smfi_setreply will fail and return MI_FAILURE if:
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<ul>
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<li>The rcode or xcode argument is invalid.
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<li>A memory-allocation failure occurs.
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</ul>
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Otherwise, it return MI_SUCCESS.
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</td>
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</tr>
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<!----------- Notes ---------->
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<tr align="left" valign=top>
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<th>NOTES</th>
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<td>
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<ul>
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<li>Values passed to smfi_setreply are not checked for standards compliance.
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<li>The message parameter should contain only printable characters,
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other characters may lead to undefined behavior.
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For example, CR or LF will cause the call to fail,
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single '%' characters will cause the text to be ignored
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(if there really should be a '%' in the string,
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use '%%' just like for <tt>printf(3)</tt>).
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<li>For details about reply codes and their meanings, please see RFC's
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<a href="http://www.rfc-editor.org/rfc/rfc821.txt">821</a>/
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<a href="http://www.rfc-editor.org/rfc/rfc2821.txt">2821</a>
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and
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<a href="http://www.rfc-editor.org/rfc/rfc1893.txt">1893</a>/
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<a href="http://www.rfc-editor.org/rfc/rfc2034.txt">2034</a>.
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<li>If the reply code (rcode) given is a '4XX' code but SMFI_REJECT is used
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for the message, the custom reply is not used.
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<li>Similarly, if the reply code (rcode) given is a '5XX' code but
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SMFI_TEMPFAIL is used for the message, the custom reply is not used.
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<BR>
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Note: in neither of the last two cases an error is returned to the milter,
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libmilter silently ignores the reply code.
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<li>
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If the milter returns SMFI_TEMPFAIL
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and sets the reply code to '421',
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then the SMTP server will terminate the SMTP session with a 421
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error code.
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</ul>
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</td>
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</tr>
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</table>
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<hr size="1">
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<font size="-1">
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Copyright (c) 2000, 2002-2003 Sendmail, Inc. and its suppliers.
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All rights reserved.
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<br>
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By using this file, you agree to the terms and conditions set
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forth in the LICENSE.
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</font>
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</body>
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</html>
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