mailman/SOURCES/mailman-2.1-mailmanctl-status.patch
2021-09-10 12:12:06 +00:00

110 lines
3.7 KiB
Diff

diff --git a/bin/mailmanctl b/bin/mailmanctl
index fa14a2c..e291df1 100644
--- a/bin/mailmanctl
+++ b/bin/mailmanctl
@@ -36,7 +36,7 @@ in the file data/master-qrunner.pid but you normally don't need to use this
pid directly. The `start', `stop', `restart', and `reopen' commands handle
everything for you.
-Usage: %(PROGRAM)s [options] [ start | stop | restart | reopen ]
+Usage: %(PROGRAM)s [options] [ start | stop | restart | reopen | status ]
Options:
@@ -90,6 +90,9 @@ Commands:
reopen - This will close all log files, causing them to be re-opened the
next time a message is written to them
+
+ status - This returns a string indicating the status of the master
+ qrunner
"""
import sys
@@ -190,6 +193,52 @@ def qrunner_state():
return 0
return 1
+def mailman_status():
+ # return status, pid
+ #
+ # These status values match the /etc/init.d status values
+ # (at least on Red Hat), try to return equivalent status if possible
+ # status is 0 if running,
+ # status is 1 if dead but pid file exists
+ # status is 2 if dead but subsys locked
+ # status is 3 if stopped (pid returned will be 0)
+ #
+ #
+ # We want any user to be able to query the status and this presents
+ # few interesting permission problems and is why we don't use
+ # qrunner_state(). The pidfile is only readable by the mailman owner
+ # and group, however the lockfile is world readable. So we will
+ # get the master pid from the lockfile. We try to determine if the
+ # master process exists by sending it a signal. If we don't have
+ # permission to signal the process, but the process exists we'll
+ # get a EPERM error, if the process does not exist then we'll get
+ # a ESRCH error.
+
+ try:
+ hostname, pid, tempfile = get_lock_data()
+ except IOError, e:
+ if e.errno == errno.ENOENT:
+ # Lock file didn't exist, can't be running
+ return 3, 0
+ else:
+ raise
+ if hostname <> socket.gethostname():
+ # not running on this host
+ return 3, 0
+ # Find out if the process exists by calling kill with a signal 0.
+ try:
+ os.kill(pid, 0)
+ except OSError, e:
+ if e.errno == errno.ESRCH:
+ # process does not exist
+ return 1, pid
+ elif e.errno == errno.EPERM:
+ # we don't have permission signal the process but it exists
+ return 0, pid
+ else:
+ raise
+ return 0, pid
+
def acquire_lock_1(force):
# Be sure we can acquire the master qrunner lock. If not, it means some
@@ -338,13 +387,15 @@ def main():
command = COMMASPACE.join(args)
usage(1, C_('Bad command: %(command)s'))
+ command = args[0].lower()
+
if checkprivs:
check_privs()
else:
- print C_('Warning! You may encounter permission problems.')
+ if command != 'status':
+ print C_('Warning! You may encounter permission problems.')
# Handle the commands
- command = args[0].lower()
if command == 'stop':
# Sent the master qrunner process a SIGINT, which is equivalent to
# giving cron/qrunner a ctrl-c or KeyboardInterrupt. This will
@@ -363,6 +414,14 @@ def main():
if not quiet:
print C_('Re-opening all log files')
kill_watcher(signal.SIGHUP)
+ elif command == 'status':
+ status, pid = mailman_status()
+ if not quiet:
+ if status == 0:
+ print C_("mailman (pid %(pid)d) is running...")
+ else:
+ print C_("mailman is stopped")
+ sys.exit(status)
elif command == 'start':
# First, complain loudly if there's no site list.
check_for_site_list()