pkgsrc/net/djbdns-run/files/axfrdns.sh
schmonz ecca6f56a1 For DNS Flag Day 2020, suggest enabling axfrdns along with tinydns. Let
the admin set axfrdns_ip distinctly from tinydns_ip, keeping the same
default. Fix an outdated comment. Bump version.
2020-10-16 09:28:14 +00:00

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#!@RCD_SCRIPTS_SHELL@
#
# $NetBSD: axfrdns.sh,v 1.11 2020/10/16 09:28:15 schmonz Exp $
#
# @PKGNAME@ script to control axfrdns (DNS zone-transfer and TCP service).
#
# PROVIDE: axfrdns named
# REQUIRE: NETWORKING mountcritremote syslogd tinydns
# BEFORE: DAEMON
name="axfrdns"
# User-settable rc.conf variables and their default values:
: ${axfrdns_postenv:=""}
: ${axfrdns_ip:="@TINYDNS_LISTENIP@"}
: ${axfrdns_datalimit:="300000"}
: ${axfrdns_pretcpserver:=""}
: ${axfrdns_tcpserver:="@PREFIX@/bin/tcpserver"}
: ${axfrdns_tcpflags:="-vDRHl0"}
: ${axfrdns_tcprules:="@PKG_SYSCONFDIR@/axfrdns/tcp"}
: ${axfrdns_autocdb:="YES"}
: ${axfrdns_tcpport:="53"}
: ${axfrdns_log:="YES"}
: ${axfrdns_logcmd:="logger -t nbdjbdns/axfr -p daemon.info"}
: ${axfrdns_nologcmd:="@PREFIX@/bin/multilog -*"}
if [ -f /etc/rc.subr ]; then
. /etc/rc.subr
fi
rcvar=${name}
required_files="${axfrdns_tcprules}"
command="${axfrdns_tcpserver}"
procname=nb${name}
start_precmd="axfrdns_precmd"
extra_commands="cdb reload"
cdb_cmd="axfrdns_cdb"
reload_cmd=${cdb_cmd}
axfrdns_precmd() {
if [ -f /etc/rc.subr ] && ! checkyesno axfrdns_log; then
axfrdns_logcmd=${axfrdns_nologcmd}
fi
if [ -f /etc/rc.subr ] && checkyesno axfrdns_autocdb; then
axfrdns_needcdb && axfrdns_cdb
fi
# tcpserver(1) is akin to inetd(8), but runs one service per process.
# We want to signal only the tcpserver process responsible for this
# service. Use argv0(1) to set procname to "nbaxfrdns".
command="@PREFIX@/bin/pgrphack @SETENV@ - ${axfrdns_postenv} \
ROOT=@PKG_SYSCONFDIR@/tinydns \
IP=${axfrdns_ip} \
@PREFIX@/bin/envuidgid @DJBDNS_AXFR_USER@ \
@PREFIX@/bin/softlimit -d ${axfrdns_datalimit} ${axfrdns_pretcpserver} \
@PREFIX@/bin/argv0 ${axfrdns_tcpserver} ${procname} \
${axfrdns_tcpflags} -x ${axfrdns_tcprules}.cdb \
-- \
${axfrdns_ip} ${axfrdns_tcpport} \
@PREFIX@/bin/${name} \
</dev/null 2>&1 | \
@PREFIX@/bin/pgrphack @PREFIX@/bin/setuidgid @DJBDNS_LOG_USER@ ${axfrdns_logcmd}"
command_args="&"
rc_flags=""
}
axfrdns_needcdb() {
_src=${axfrdns_tcprules}
_dst=${axfrdns_tcprules}.cdb
[ -f "${_src}" -a "${_src}" -nt "${_dst}" ] || [ ! -f "${_dst}" ]
}
axfrdns_cdb() {
@ECHO@ "Reloading ${axfrdns_tcprules}."
@PREFIX@/bin/tcprules ${axfrdns_tcprules}.cdb ${axfrdns_tcprules}.tmp < ${axfrdns_tcprules}
@CHMOD@ 644 ${axfrdns_tcprules}.cdb
}
if [ -f /etc/rc.subr ]; then
load_rc_config $name
run_rc_command "$1"
else
@ECHO_N@ " ${name}"
axfrdns_precmd
eval ${command} ${axfrdns_flags} ${command_args}
fi