CONFIG_PID_FILE_PATH: new configuration option for pidfile paths

We set a default path for the directory where pidfiles are create
when FEATURE_PIDFILE is selected.  The default has no effect on
applets which must specify a pidfile path on the command line to
run, and it can be overridden by applets which optionally allow
the user to specify the pidfile path.

We also add pidfile write/remove support for klogd, ntpd and watchdog.
For syslogd, we add a missing remove_pidfile() for better cleanup
on daemon exit.

Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/sysklogd/syslogd.c b/sysklogd/syslogd.c
index fc380d9f9..5854bcd0f 100644
--- a/sysklogd/syslogd.c
+++ b/sysklogd/syslogd.c
@@ -916,6 +916,7 @@ static void do_syslogd(void)
 
         timestamp_and_log_internal("syslogd exiting");
         puts("syslogd exiting");
+        remove_pidfile(CONFIG_PID_FILE_PATH "/syslogd.pid");
         if (ENABLE_FEATURE_IPC_SYSLOG)
                 ipcsyslog_cleanup();
         kill_myself_with_sig(bb_got_signal);
@@ -979,8 +980,10 @@ int syslogd_main(int argc UNUSED_PARAM, char **argv)
         if (!(opts & OPT_nofork)) {
                 bb_daemonize_or_rexec(DAEMON_CHDIR_ROOT, argv);
         }
+
         //umask(0); - why??
-        write_pidfile("/var/run/syslogd.pid");
+        write_pidfile(CONFIG_PID_FILE_PATH "/syslogd.pid");
+
         do_syslogd();
         /* return EXIT_SUCCESS; */
 }