File _service:tar_scm:backport-0027-Add-missed-sd-no... of Package dhcp

File _service:tar_scm:backport-0027-Add-missed-sd-notify-patch-to-manage-dhcpd-with-syst.patch of Package dhcp (Revision f10445e76f7e8a63e9b8d39dbe5af320)

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Reference: https://src.fedoraproject.org/rpms/dhcp/blob/rawhide/f/0027-Add-missed-sd-notify-patch-to-manage-dhcpd-with-syst.patch
From d1b1f91a7982be28acdfb580996c93aafcc76cc2 Mon Sep 17 00:00:00 2001
From: Pavel Zhukov <pzhukov@redhat.com>
Date: Thu, 7 Nov 2019 14:47:45 +0100
Subject: [PATCH 27/28] Add missed sd notify patch to manage dhcpd with systemd

---
 configure.ac     | 11 +++++++++++
 relay/dhcrelay.c | 12 ++++++++++++
 server/dhcpd.c   | 12 ++++++++++++
 3 files changed, 35 insertions(+)

diff --git a/configure.ac b/configure.ac
index 300117f..f644e71 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1005,6 +1005,17 @@ if test x$ldap = xyes || test x$ldapcrypto = xyes || test x$ldap_gssapi = xyes;
     AC_SUBST(LDAP_CFLAGS, [$LDAP_CFLAGS])
 fi
 
+AC_ARG_WITH(systemd,
+        AC_HELP_STRING([--with-systemd],
+                       [enable sending status notifications to systemd daemon (default is no)]),
+        [systemd=$withval],
+        [systemd=no])
+
+if test x$systemd = xyes ; then
+   AC_CHECK_LIB(systemd, sd_notifyf, ,
+                AC_MSG_FAILURE([*** systemd library not present - do you need to install systemd-libs package?]))
+fi
+
 # Append selected warning levels to CFLAGS before substitution (but after
 # AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[],[]) & etc).
 CFLAGS="$CFLAGS $STD_CWARNINGS"
diff --git a/relay/dhcrelay.c b/relay/dhcrelay.c
index 0dc17d6..d3ad31e 100644
--- a/relay/dhcrelay.c
+++ b/relay/dhcrelay.c
@@ -37,6 +37,10 @@
    int keep_capabilities = 0;
 #endif
 
+#ifdef HAVE_LIBSYSTEMD
+#include <systemd/sd-daemon.h>
+#endif
+
 TIME default_lease_time = 43200; /* 12 hours... */
 TIME max_lease_time = 86400; /* 24 hours... */
 struct tree_cache *global_options[256];
@@ -869,6 +873,14 @@ main(int argc, char **argv) {
 	}
 #endif
 
+#ifdef HAVE_LIBSYSTEMD
+        /* We are ready to process incomming packets. Let's notify systemd */
+        sd_notifyf(0, "READY=1\n"
+                   "STATUS=Dispatching packets...\n"
+                   "MAINPID=%lu",
+                   (unsigned long) getpid());
+#endif
+
 	/* Start dispatching packets and timeouts... */
 	dispatch();
 
diff --git a/server/dhcpd.c b/server/dhcpd.c
index 3b3bd3b..9223d5b 100644
--- a/server/dhcpd.c
+++ b/server/dhcpd.c
@@ -60,6 +60,10 @@ gid_t set_gid = 0;
 struct class unknown_class;
 struct class known_class;
 
+#ifdef HAVE_LIBSYSTEMD
+#include <systemd/sd-daemon.h>
+#endif
+
 struct iaddr server_identifier;
 int server_identifier_matched;
 
@@ -1057,6 +1061,14 @@ main(int argc, char **argv) {
 	/* Log that we are about to start working */
 	log_info("Server starting service.");
 
+#ifdef HAVE_LIBSYSTEMD
+        /* We are ready to process incomming packets. Let's notify systemd */
+        sd_notifyf(0, "READY=1\n"
+                   "STATUS=Dispatching packets...\n"
+                   "MAINPID=%lu",
+                   (unsigned long) getpid());
+#endif
+
 	/*
 	 * Receive packets and dispatch them...
 	 * dispatch() will never return.
-- 
2.35.1