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From a9008bf22c4f706cf2a4ce12dac9eb282f295933 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 07/14] 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 0b74c2587f..63b027403c 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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@@ -59,6 +60,9 @@ 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 44c4f72f3f..7c8eda5a1d 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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@@ -88,6 +88,18 @@ 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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@@ -97,7 +109,7 @@ 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 [-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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@@ -133,7 +145,7 @@ 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 = 2;
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@@ -148,6 +160,9 @@ 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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lconf.settime = 1;
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break;
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@@ -214,9 +229,11 @@ main(int argc, char *argv[])
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if (!lconf.settime) {
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log_init(lconf.debug, LOG_DAEMON);
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log_setverbose(lconf.verbose);
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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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@@ -298,9 +315,11 @@ main(int argc, char *argv[])
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log_setverbose(lconf.verbose);
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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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@@ -339,6 +358,8 @@ 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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@@ -399,9 +420,11 @@ 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 0f7313c78e..7ee919dd09 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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@@ -250,6 +250,7 @@ struct ntpd_conf {
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u_int constraint_errors;
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u_int8_t *ca;
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size_t ca_len;
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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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2.20.1
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