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From e809e7f516d3eb2dbd6c7bf250835aadff59b796 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 07/18] 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 f5fe1db9d8..98af025991 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 dnv
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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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@@ -67,6 +68,9 @@ configured NTP servers to reply.
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This option allows
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.Nm
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to send DEBUG priority messages to syslog.
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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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.El
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.Pp
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.Nm
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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 e015d1d093..a0da39adf7 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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@@ -90,6 +90,18 @@ 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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@@ -99,7 +111,7 @@ usage(void)
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fprintf(stderr,
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"usage: ntpctl -s all | peers | Sensors | status\n");
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else
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- fprintf(stderr, "usage: %s [-dnv] [-f file]\n",
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+ fprintf(stderr, "usage: %s [-dnv] [-f file] [-p file]\n",
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__progname);
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exit(1);
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}
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@@ -151,7 +163,7 @@ main(int argc, char *argv[])
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memset(&lconf, 0, sizeof(lconf));
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- while ((ch = getopt(argc, argv, "df:nP:sSv")) != -1) {
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+ while ((ch = getopt(argc, argv, "df:np:P: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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@@ -166,6 +178,9 @@ main(int argc, char *argv[])
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case 'P':
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pname = optarg;
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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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case 'S':
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sopt = ch;
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@@ -244,9 +259,11 @@ main(int argc, char *argv[])
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logdest = lconf.debug ? LOG_TO_STDERR : LOG_TO_SYSLOG;
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if (!lconf.settime) {
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log_init(logdest, lconf.verbose, LOG_DAEMON);
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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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settime_deadline = getmonotime();
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timeout = 100;
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@@ -330,9 +347,11 @@ main(int argc, char *argv[])
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log_init(logdest, lconf.verbose, LOG_DAEMON);
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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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@@ -371,6 +390,8 @@ 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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@@ -431,9 +452,11 @@ dispatch_imsg(struct ntpd_conf *lconf, int argc, char **argv)
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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 b360af9eac..3ea46ac064 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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@@ -261,6 +261,7 @@ struct ntpd_conf {
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u_int8_t *ca;
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size_t ca_len;
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int tmpfail;
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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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2.27.0
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