282 lines
6.0 KiB
Bash
Executable File
282 lines
6.0 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (C) 2001-2022 Graeme Walker <graeme_walker@users.sourceforge.net>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# ===
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#
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# emailrelay
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#
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# A start/stop script for E-MailRelay in the SysV init system.
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#
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# usage: emailrelay { start | stop | restart | force-reload | status }
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#
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# See also: install_initd, remove_initd
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#
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### BEGIN INIT INFO
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# Provides: emailrelay
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# Required-Start: $local_fs $network $syslog
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# Required-Stop: $local_fs $network $syslog
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: E-MailRelay mail server
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### END INIT INFO
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##
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PATH=/sbin:/bin:/usr/sbin:/usr/bin
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NAME=emailrelay
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DESC="E-MailRelay mail server"
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CONFIG=/etc/$NAME.conf
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PIDFILE=/run/emailrelay/$NAME.pid
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GROUP=daemon
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DAEMON=/usr/sbin/$NAME
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SUBMIT=/usr/sbin/$NAME-submit
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FACILITY=mail
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test -f /etc/default/$NAME && . /etc/default/$NAME
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test -f /etc/rc.conf.d/$NAME && . /etc/rc.conf.d/$NAME
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test -f /etc/default/rcS && . /etc/default/rcS
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# Default lsb functions in case there is no lsb/init-functions...
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#
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log_success_msg()
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{
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echo "$@"
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}
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log_failure_msg()
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{
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echo "$@"
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}
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log_warning_msg()
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{
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echo "$@"
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}
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start_daemon()
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{
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if test "`cat \"$2\" 2>/dev/null`" -gt 0 2>/dev/null && kill -0 "`cat \"$2\"`"
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then
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: # running already
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else
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shift ; shift ; shift
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"$@"
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fi
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}
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killproc()
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{
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shift
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kill `cat "$1" 2>/dev/null` 2>/dev/null
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}
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pidofproc()
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{
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shift
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kill -0 `cat "$1" 2>/dev/null` 2>/dev/null
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}
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log_daemon_msg()
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{
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echo -n "$@"
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}
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log_progress_msg()
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{
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:;
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}
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log_end_msg()
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{
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if test "$1" -eq 0
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then
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log_success_msg " ... ok"
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true
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else
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log_failure_msg " ... failed!"
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false
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fi
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}
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# Setup functions...
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#
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# Some packaging scripts do "emailrelay setup" for some of their
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# post-install steps, and "emailrelay setup" might also be useful
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# administratively after editing the /etc/default file. The "start"
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# sub-command below also uses setup_rundir() because the /run
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# directory will not necessarily persist across a reboot.
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#
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# (This code must come before the potential 'init-functions' redirect
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# to systemd.)
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#
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setup_config()
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{
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if test ! -f "$CONFIG" -a -f "$CONFIG.template"
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then
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cp -p "$CONFIG.template" "$CONFIG"
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fi
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}
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root_root()
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{
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# True if the given file exists and is owned by 'root.root',
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# as if newly copied by the install process and never
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# subsequently chown'ed by the administrator
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ls -nd "$1" 2>/dev/null | cut -d' ' -f 3,4 | grep -q '^0 0$'
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}
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spooldir()
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{
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# Prints the spool directory path from the config file, but with a
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# default because packaged installs may not edit the config file
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# like 'make install' does
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( echo spool-dir /var/spool/emailrelay ; cat "$CONFIG" ) | \
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tr '\t' ' ' | sed 's/ */ /g' | grep '^spool-dir [^ ]' | \
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tail -1 | cut -d' ' -f 2
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}
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setup_rundir_imp()
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{
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test -d "$1" || mkdir -p "$1"
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if echo "$1" | grep -q "/emailrelay$"
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then
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if root_root "$1"
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then
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chgrp "$GROUP" "$1"
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chmod 775 "$1"
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fi
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fi
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}
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setup_rundir()
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{
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# Recreates the pidfile directory, which might disappear after a reboot
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setup_rundir_imp "`dirname \"$PIDFILE\"`"
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}
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setup_spooldir_imp()
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{
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test -d "$1" || mkdir -p "$1"
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if root_root "$1"
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then
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chgrp "$GROUP" "$1"
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chmod 775 "$1"
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chmod g+s "$1"
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fi
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}
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setup_spooldir()
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{
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setup_spooldir_imp "`spooldir`"
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}
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setup_sgid()
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{
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if root_root "$1"
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then
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chgrp "$GROUP" "$1"
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chmod 755 "$1"
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chmod g+s "$1"
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fi
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}
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setup_tools()
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{
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setup_sgid "/usr/sbin/emailrelay-submit"
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setup_sgid "/usr/lib/emailrelay/emailrelay-filter-copy"
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}
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setup_openrc()
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{
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rc-update -q -q add "$NAME" >/dev/null 2>&1 || true
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}
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setup()
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{
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setup_config
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setup_rundir
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setup_spooldir
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setup_tools
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setup_openrc
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}
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if test "$1" = "setup" ; then setup ; exit 0 ; fi
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# Read lsb init-functions. Annoyingly, systemd sometimes hijacks this to
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# generate a service file under /run/systemd, run systemctl etc, without
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# ever returning to this script.
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#
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test -f /lib/lsb/init-functions && . /lib/lsb/init-functions
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# Ignore /etc/default 'enabled' switch if running from systemd.
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#
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# (The 'enabled' mechanism is needed on non-systemd debian distros
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# because the dpkg postinstall script starts the server, whereas
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# on systemd systems the dpkg postinstall script's call to update-rc.d
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# does nothing. On rpm or 'make install' systems the /etc/default file
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# is not installed at all.)
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#
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if test -d /run/systemd/system -a "$PPID" -eq 1
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then
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EMAILRELAY_ENABLED="1"
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fi
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case "$1" in
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restart|force-reload)
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$0 stop
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$0 start
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;;
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try-restart)
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echo `basename $0`: $1 not implemented >&2
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exit 3
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;;
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*start)
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if test "${EMAILRELAY_ENABLED:-1}" -eq 1
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then
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log_daemon_msg "Starting $DESC"
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log_progress_msg "$NAME"
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setup_rundir
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start_daemon -p "$PIDFILE" -- "$DAEMON" --as-server --syslog=$FACILITY --pid-file "$PIDFILE" "$CONFIG"
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e="$?"
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log_end_msg $e
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if test -d /run/systemd/system ; then sleep 0.2 2>/dev/null ; fi # pid file race
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test "$e" -eq 0
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else
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log_warning_msg "$NAME startup is disabled in /etc/default/$NAME"
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exit 0
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fi
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;;
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stop)
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log_daemon_msg "Stopping $DESC"
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log_progress_msg "$NAME"
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killproc -p "$PIDFILE" "$DAEMON"
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e="$?"
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log_end_msg $e
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test "$e" -eq 0
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;;
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reload)
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echo `basename $0`: $1 not implemented >&2
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exit 3
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;;
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status)
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if pidofproc -p "$PIDFILE" "$DAEMON" >/dev/null
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then
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log_success_msg "$NAME is running"
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true
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else
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log_failure_msg "$NAME is not running"
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false
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fi
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;;
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setup)
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# never gets here -- see above
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setup
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;;
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*)
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echo usage: `basename $0` "{start|stop|restart|status}" >&2
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exit 2
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;;
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esac
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