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<HEAD><TITLE>xxfi_header</TITLE></HEAD>
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$Id: xxfi_header.html,v 1.17 2006/12/21 18:30:36 ca Exp $
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<H1>xxfi_header</H1>
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<!---------- Synopsis ----------->
<TR><TH valign="top" align=left width=100>SYNOPSIS</TH><TD>
<PRE>
#include <libmilter/mfapi.h>
sfsistat (*xxfi_header)(
SMFICTX *ctx,
char *headerf,
char *headerv
);
</PRE>
Handle a message header.
</TD></TR>
<!----------- Description ---------->
<TR><TH valign="top" align=left>DESCRIPTION</TH><TD>
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<TR align="left" valign=top>
<TH width="80">Called When</TH>
<TD>xxfi_header is called once for each message header.</TD>
</TR>
<TR align="left" valign=top>
<TH>Default Behavior</TH>
<TD>Do nothing; return SMFIS_CONTINUE.</TD>
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<!----------- Arguments ---------->
<TR><TH valign="top" align=left>ARGUMENTS</TH><TD>
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<TR bgcolor="#dddddd"><TH>Argument</TH><TH>Description</TH></TR>
<TR valign="top"><TD>ctx</TD>
<TD>Opaque context structure.
</TD></TR>
<TR valign="top"><TD>headerf</TD>
<TD> Header field name.
</TD></TR>
<TR valign="top"><TD>headerv</TD>
<TD>Header field value.
The content of the header may include folded white space,
i.e., multiple lines with following white space
where lines are separated by LF (not CR/LF).
The trailing line terminator (CR/LF) is removed.
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<!----------- Notes ---------->
<TR>
<TH valign="top" align=left>NOTES</TH>
<TD>
<UL>
<LI>Starting with sendmail 8.14, spaces after the colon in a header
field are preserved if requested using the flag
<A HREF="xxfi_negotiate.html#SMFIP_HDR_LEADSPC"><CODE>SMFIP_HDR_LEADSPC</CODE></A>.
That is, the header
<PRE>
From: sender <f@example.com>
To: user <t@example.com>
Subject:no
</PRE>
will be sent to a milter as
<PRE>
"From", " sender <f@example.com>"
"To", " user <t@example.com>"
"Subject", "no"
</PRE>
while previously
(or without the flag
<A HREF="xxfi_negotiate.html#SMFIP_HDR_LEADSPC"><CODE>SMFIP_HDR_LEADSPC</CODE></A>)
it was:
<PRE>
"From", "sender <f@example.com>"
"To", "user <t@example.com>"
"Subject", "no"
</PRE>
<LI>Later filters will see header changes/additions made by earlier ones.
<LI>For much more detail about header format, please see
RFC <A href="http://www.rfc-editor.org/rfc/rfc822.html">822</A>
and
RFC <A href="http://www.rfc-editor.org/rfc/rfc2822.html">2822</A>
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Copyright (c) 2000, 2003, 2006 Sendmail, Inc. and its suppliers.
All rights reserved.
<BR>
By using this file, you agree to the terms and conditions set
forth in the LICENSE.
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