/usr/share/sendmail/update_sendmail is in sendmail-base 8.15.2-3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 | #!/bin/sh -e
#-----------------------------------------------------------------------------
#
# Update Sendmail environment for Debian
#
# Copyright (c) 2001-2001 Richard Nelson.  All Rights Reserved.
# Time-stamp: <2001/01/17 10:00:00 cowboy>
#
# Notes (to all):
#	*
#
# Notes (to self):
#	* 
#
#-----------------------------------------------------------------------------
set -e;
# Path to other sendmail helpers
if [ -x ./update_sendmail ]; then
	sm_path='.';
elif [ -x $(dirname $0)/update_sendmail ]; then
	sm_path=$(dirname $0);
else
	sm_path=/usr/share/sendmail;
	fi;
# Bring in sendmail.conf for the network definitions
# Here, we *MUST* update the conf file before reading it...
#if [ ! -f /etc/mail/sendmail.conf ]; then
	if [ -x $sm_path/update_conf ]; then
		$sm_path/update_conf;
		fi;
#	fi;
if [ -f /etc/mail/sendmail.conf ]; then
	. /etc/mail/sendmail.conf;
	fi;
if [ "$HANDS_OFF" != 'No' ]; then
	exit 0;
	fi;
# control amount of output
verbosity=0;
# flag used to indicate a dataset has been moved, may need another update
changed=0;
#-------------------------------------------------------------
# Make sure the configuration is setup
if [ -x $sm_path/update_conf ]; then
	$sm_path/update_conf || true;
	fi;
#-------------------------------------------------------------
# Perform some [safe] updates to an existing sendmail.mc to make
# sure it is compatible with the current executables.
if [ -x $sm_path/update_mc ]; then
	$sm_path/update_mc || changed=1;
	rm -f /etc/mail/databases || true;
	$sm_path/parse_mc || true;
	fi;
#-------------------------------------------------------------
# Make sure the system is setup
if [ -x $sm_path/update_sys ]; then
	$sm_path/update_sys || changed=1;
	fi;
#-------------------------------------------------------------
# update smrsh/sensible-mda information if possible
if [ -x $sm_path/update_smrsh ]; then
	$sm_path/update_smrsh || true;
	fi;
#-------------------------------------------------------------
# update LDAP information if possible
if [ -x $sm_path/update_ldap ]; then
	$sm_path/update_ldap || true;
	fi;
#-------------------------------------------------------------
# update SMTP AUTH (SASL) information if possible
if [ -x $sm_path/update_auth ]; then
	$sm_path/update_auth || true;
	fi;
#-------------------------------------------------------------
# update TLS(SSL) information if possible
if [ -x $sm_path/update_tls ]; then
	$sm_path/update_tls || true;
	fi;
#-------------------------------------------------------------
# Check and update (if needed) /etc/hosts.allow
if [ -x $sm_path/update_tcpd ]; then
	$sm_path/update_tcpd || true;
	fi;
#-------------------------------------------------------------
# Correct prior stupidity of the maintainter
# Remove old bogon entries from /etc/mail/access
if [ -s /etc/mail/access ]; then
	cp -p /etc/mail/access /etc/mail/access.new;
	sed \
		-e '/^#\?Connect:8		REJECT/d' \
		-e '/^#\?Connect:41		REJECT/d' \
		-e '/^#\?Connect:71		REJECT/d' \
		-e '/^#\?Connect:72		REJECT/d' \
		-e '/^#\?Connect:73		REJECT/d' \
		-e '/^#\?Connect:74		REJECT/d' \
		-e '/^#\?Connect:75		REJECT/d' \
		-e '/^#\?Connect:76		REJECT/d' \
		/etc/mail/access > /etc/mail/access.new;
	mv /etc/mail/access.new /etc/mail/access;
	fi;	
#-------------------------------------------------------------
# Make sure the databases are in the expected locations
if [ -x $sm_path/update_db ]; then
	$sm_path/update_db || changed=1;
	fi;
#-------------------------------------------------------------
exit $changed
 |