From b5896ba9f6047e7031e2bdee0622d543e11a6734 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Mon, 6 May 2024 03:46:30 +0200
Subject: Adding upstream version 3.4.23.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/global/input_transp.c | 102 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 src/global/input_transp.c

(limited to 'src/global/input_transp.c')

diff --git a/src/global/input_transp.c b/src/global/input_transp.c
new file mode 100644
index 0000000..ca3af34
--- /dev/null
+++ b/src/global/input_transp.c
@@ -0,0 +1,102 @@
+/*++
+/* NAME
+/*	input_transp 3
+/* SUMMARY
+/*	receive transparency control
+/* SYNOPSIS
+/*	#include <input_transp.h>
+/*
+/*	int	input_transp_mask(param_name, pattern)
+/*	const char *param_name;
+/*	const char *pattern;
+/*
+/*	int	input_transp_cleanup(cleanup_flags, transp_mask)
+/*	int	cleanup_flags;
+/*	int	transp_mask;
+/* DESCRIPTION
+/*	This module controls how much processing happens before mail is
+/*	written to the Postfix queue. Each transparency option is either
+/*	implemented by a client of the cleanup service, or is passed
+/*	along in a client request to the cleanup service. This eliminates
+/*	the need to configure multiple cleanup service instances.
+/*
+/*	input_transp_mask() takes a comma-separated list of names and
+/*	computes the corresponding mask. The following names are
+/*	recognized in \fBpattern\fR, with the corresponding bit mask
+/*	given in parentheses:
+/* .IP "no_unknown_recipient_checks (INPUT_TRANSP_UNKNOWN_RCPT)"
+/*	Do not try to reject unknown recipients.
+/* .IP "no_address_mappings (INPUT_TRANSP_ADDRESS_MAPPING)"
+/*	Disable canonical address mapping, virtual alias map expansion,
+/*	address masquerading, and automatic BCC recipients.
+/* .IP "no_header_body_checks (INPUT_TRANSP_HEADER_BODY)"
+/*	Disable header/body_checks.
+/* .IP "no_milters (INPUT_TRANSP_MILTER)"
+/*	Disable Milter applications.
+/*
+/*	input_transp_cleanup() takes a bunch of cleanup processing
+/*	flags and updates them according to the settings in the
+/*	specified input transparency mask.
+/* DIAGNOSTICS
+/*	Panic: inappropriate use.
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+
+/* Utility library. */
+
+#include <name_mask.h>
+#include <msg.h>
+
+/* Global library. */
+
+#include <mail_params.h>
+#include <cleanup_user.h>
+#include <input_transp.h>
+
+/* input_transp_mask - compute mail receive transparency mask */
+
+int     input_transp_mask(const char *param_name, const char *pattern)
+{
+    static const NAME_MASK table[] = {
+	"no_unknown_recipient_checks", INPUT_TRANSP_UNKNOWN_RCPT,
+	"no_address_mappings", INPUT_TRANSP_ADDRESS_MAPPING,
+	"no_header_body_checks", INPUT_TRANSP_HEADER_BODY,
+	"no_milters", INPUT_TRANSP_MILTER,
+	0,
+    };
+
+    return (name_mask(param_name, table, pattern));
+}
+
+/* input_transp_cleanup - adjust cleanup options */
+
+int     input_transp_cleanup(int cleanup_flags, int transp_mask)
+{
+    const char *myname = "input_transp_cleanup";
+
+    if (msg_verbose)
+	msg_info("before %s: cleanup flags = %s",
+		 myname, cleanup_strflags(cleanup_flags));
+    if (transp_mask & INPUT_TRANSP_ADDRESS_MAPPING)
+	cleanup_flags &= ~(CLEANUP_FLAG_BCC_OK | CLEANUP_FLAG_MAP_OK);
+    if (transp_mask & INPUT_TRANSP_HEADER_BODY)
+	cleanup_flags &= ~CLEANUP_FLAG_FILTER;
+    if (transp_mask & INPUT_TRANSP_MILTER)
+	cleanup_flags &= ~CLEANUP_FLAG_MILTER;
+    if (msg_verbose)
+	msg_info("after %s: cleanup flags = %s",
+		 myname, cleanup_strflags(cleanup_flags));
+    return (cleanup_flags);
+}
-- 
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