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From b5d9a8e7f8991c6a50992171d836aff3d92b7fea Mon Sep 17 00:00:00 2001
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From: Brent Cook <busterb@gmail.com>
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Date: Wed, 31 Dec 2014 08:26:41 -0600
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Subject: [PATCH 10/12] add -p option to create a pid file
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This is used in both the Gentoo and Debian ports.
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Origin: https://bugs.gentoo.org/show_bug.cgi?id=493082
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---
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src/usr.sbin/ntpd/ntpd.8 | 4 ++++
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src/usr.sbin/ntpd/ntpd.c | 33 ++++++++++++++++++++++++++++-----
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src/usr.sbin/ntpd/ntpd.h | 1 +
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3 files changed, 33 insertions(+), 5 deletions(-)
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diff --git a/src/usr.sbin/ntpd/ntpd.8 b/src/usr.sbin/ntpd/ntpd.8
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index 18b12e8..9eb1fee 100644
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--- a/src/usr.sbin/ntpd/ntpd.8
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+++ b/src/usr.sbin/ntpd/ntpd.8
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@@ -25,6 +25,7 @@
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.Bk -words
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.Op Fl dnSsv
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.Op Fl f Ar file
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+.Op Fl p Ar file
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.Ek
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.Sh DESCRIPTION
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The
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@@ -56,6 +57,9 @@ instead of the default
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.It Fl n
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Configtest mode.
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Only check the configuration file for validity.
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+.It Fl p Ar file
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+Write pid to
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+.Ar file
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.It Fl S
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Do not set the time immediately at startup.
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This is the default.
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diff --git a/src/usr.sbin/ntpd/ntpd.c b/src/usr.sbin/ntpd/ntpd.c
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index 052c240..d7efc25 100644
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--- a/src/usr.sbin/ntpd/ntpd.c
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+++ b/src/usr.sbin/ntpd/ntpd.c
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@@ -83,6 +83,18 @@ sighdlr(int sig)
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}
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}
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+void
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+writepid(struct ntpd_conf *lconf)
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+{
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+ if (lconf->pid_file != NULL) {
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+ FILE *f = fopen(lconf->pid_file, "w");
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+ if (f == NULL)
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+ fatal("couldn't open pid file");
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+ fprintf(f, "%ld\n", (long) getpid());
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+ fclose(f);
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+ }
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+}
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+
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__dead void
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usage(void)
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{
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@@ -91,7 +103,7 @@ usage(void)
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if (strcmp(__progname, "ntpctl") == 0)
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fprintf(stderr, "usage: ntpctl [-s all | peers | Sensors | status]\n");
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else
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- fprintf(stderr, "usage: %s [-dnSsv] [-f file]\n",
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+ fprintf(stderr, "usage: %s [-dnSsv] [-f file] [-p file]\n",
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__progname);
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exit(1);
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}
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@@ -122,7 +134,7 @@ main(int argc, char *argv[])
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log_init(1); /* log to stderr until daemonized */
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- while ((ch = getopt(argc, argv, "df:nsSv")) != -1) {
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+ while ((ch = getopt(argc, argv, "df:np:sSv")) != -1) {
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switch (ch) {
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case 'd':
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lconf.debug = 1;
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@@ -134,6 +146,9 @@ main(int argc, char *argv[])
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case 'n':
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lconf.noaction = 1;
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break;
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+ case 'p':
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+ lconf.pid_file = optarg;
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+ break;
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case 's':
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lconf.settime = 1;
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break;
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@@ -174,9 +189,11 @@ main(int argc, char *argv[])
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reset_adjtime();
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if (!lconf.settime) {
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log_init(lconf.debug);
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- if (!lconf.debug)
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+ if (!lconf.debug) {
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if (daemon(1, 0))
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fatal("daemon");
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+ writepid(&lconf);
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+ }
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} else
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timeout = SETTIME_TIMEOUT * 1000;
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@@ -223,9 +240,11 @@ main(int argc, char *argv[])
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log_init(lconf.debug);
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log_warnx("no reply received in time, skipping initial "
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"time setting");
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- if (!lconf.debug)
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+ if (!lconf.debug) {
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if (daemon(1, 0))
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fatal("daemon");
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+ writepid(&lconf);
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+ }
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}
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if (nfds > 0 && (pfd[PFD_PIPE].revents & POLLOUT))
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@@ -264,6 +283,8 @@ main(int argc, char *argv[])
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msgbuf_clear(&ibuf->w);
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free(ibuf);
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log_info("Terminating");
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+ if (lconf.pid_file != NULL)
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+ unlink(lconf.pid_file);
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return (0);
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}
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@@ -339,9 +360,11 @@ dispatch_imsg(struct ntpd_conf *lconf)
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memcpy(&d, imsg.data, sizeof(d));
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ntpd_settime(d);
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/* daemonize now */
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- if (!lconf->debug)
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+ if (!lconf->debug) {
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if (daemon(1, 0))
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fatal("daemon");
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+ writepid(lconf);
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+ }
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lconf->settime = 0;
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timeout = INFTIM;
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break;
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diff --git a/src/usr.sbin/ntpd/ntpd.h b/src/usr.sbin/ntpd/ntpd.h
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index 962e1cc..73d7fe1 100644
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--- a/src/usr.sbin/ntpd/ntpd.h
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+++ b/src/usr.sbin/ntpd/ntpd.h
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@@ -206,6 +206,7 @@ struct ntpd_conf {
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u_int8_t debug;
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u_int8_t noaction;
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u_int8_t filters;
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+ char *pid_file;
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};
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struct ctl_show_status {
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--
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1.9.1
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