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, 12 insertions, 1 deletions

diff --git a/Config.in b/Config.in
index 17bdc895a..b3fd65bd9 100644
--- a/Config.in
+++ b/Config.in
@@ -310,7 +310,18 @@ config FEATURE_PIDFILE
         default y
         help
           This option makes some applets (e.g. crond, syslogd, inetd) write
-          a pidfile in /var/run. Some applications rely on them.
+          a pidfile at the configured PID_FILE_PATH.  It has no effect
+          on applets which require pidfiles to run.
+
+config PID_FILE_PATH
+        string "Path to directory for pidfile"
+        default "/var/run"
+        depends on FEATURE_PIDFILE
+        help
+          This is the default path where pidfiles are created.  Applets which
+          allow you to set the pidfile path on the command line will override
+          this value.  The option has no effect on applets that require you to
+          specify a pidfile path.
 
 config FEATURE_SUID
         bool "Support for SUID/SGID handling"