#!/bin/sh

# Reports parameters that are documented in the postconf(5 mapage),
# but not implemented according to postconf(1) output.

LANG=C; export LANG
LC_ALL=C; export LC_ALL

bin/postconf mail_version >/dev/null || exit 1

trap 'rm -f have.tmp want.tmp stoplist.tmp 2>/dev/null' 0 1 2 3 15

# Extract the implemented parameter names from postconf(1) output, using
# the stock configurations.

bin/postconf -dHc conf | sort >have.tmp || exit 1

# Build a stoplist for postconf(5) output.

# Eliminate dynamic parameter names for delivery agents. These are
# documented as transport_mumble.

cat <<EOF >stoplist.tmp
transport_delivery_slot_cost
transport_delivery_slot_discount
transport_delivery_slot_loan
transport_destination_concurrency_failed_cohort_limit
transport_destination_concurrency_limit
transport_destination_concurrency_negative_feedback
transport_destination_concurrency_positive_feedback
transport_destination_rate_delay
transport_destination_recipient_limit
transport_extra_recipient_limit
transport_initial_destination_concurrency
transport_minimum_delivery_slots
transport_recipient_limit
transport_recipient_refill_delay
transport_recipient_refill_limit
transport_transport_rate_delay
EOF

# Eliminate other per-service transport_mumble parameters.

cat <<EOF >>stoplist.tmp
transport_time_limit
EOF

# Eliminate obsolete parameters. These are no longer implemented, but
# still documented.

cat >>stoplist.tmp <<'EOF'
authorized_verp_clients
enable_errors_to
extract_recipient_limit
fallback_relay
lmtp_cache_connection
lmtp_per_record_deadline
postscreen_blacklist_action
postscreen_dnsbl_ttl
postscreen_dnsbl_whitelist_threshold
postscreen_whitelist_interfaces
sender_based_routing
smtp_per_record_deadline
smtp_skip_4xx_greeting
smtp_tls_cipherlist
smtpd_client_connection_limit_exceptions
smtpd_per_record_deadline
smtpd_sasl_application_name
smtpd_tls_cipherlist
tls_dane_digest_agility
tls_dane_trust_anchor_digest_enable
tls_legacy_public_key_fingerprints
tlsproxy_client_level
tlsproxy_client_policy
tlsproxy_tls_session_cache_timeout
virtual_maps
tlsproxy_client_loglevel_parameter
EOF

# Eliminate config functions. The are documented in the postconf(5)
# manpage, but have no parameter name.

cat >>stoplist.tmp <<'EOF'
domain_to_ascii
domain_to_utf8
EOF

# Extract parameters from the postconf(5) manpage.

awk '/^%PARAM/ { print $2 }' proto/postconf.proto | 
	grep -F -vx -f stoplist.tmp | sort > want.tmp || exit 1

# Report names from the postconf(5) manpage that have no implementation.

comm -23 want.tmp have.tmp
