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diff -up dhcp-4.2.5/configure.ac.sd-daemon dhcp-4.2.5/configure.ac
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--- dhcp-4.2.5/configure.ac.sd-daemon 2014-07-07 12:13:21.474322606 +0200
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+++ dhcp-4.2.5/configure.ac 2014-07-07 12:16:11.320964893 +0200
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@@ -714,6 +714,17 @@ if test x$ldap = xyes || test x$ldapcryp
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fi
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fi
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+AC_ARG_WITH(systemd,
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+ AC_HELP_STRING([--with-systemd],
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+ [enable sending status notifications to systemd daemon (default is no)]),
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+ [systemd=$withval],
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+ [systemd=no])
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+
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+if test x$systemd = xyes ; then
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+ AC_CHECK_LIB(systemd-daemon, sd_notify, ,
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+ AC_MSG_FAILURE([*** sd-daemon library not present - do you need to install systemd-libs package?]))
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+fi
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+
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# Append selected warning levels to CFLAGS before substitution (but after
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# AC_TRY_COMPILE & etc).
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CFLAGS="$CFLAGS $STD_CWARNINGS"
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diff -up dhcp-4.2.5/relay/dhcrelay.c.sd-daemon dhcp-4.2.5/relay/dhcrelay.c
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--- dhcp-4.2.5/relay/dhcrelay.c.sd-daemon 2014-07-07 12:13:21.329324619 +0200
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+++ dhcp-4.2.5/relay/dhcrelay.c 2014-07-07 12:13:21.475322592 +0200
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@@ -41,6 +41,10 @@
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int keep_capabilities = 0;
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#endif
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+#ifdef HAVE_LIBSYSTEMD_DAEMON
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+#include <systemd/sd-daemon.h>
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+#endif
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+
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TIME default_lease_time = 43200; /* 12 hours... */
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TIME max_lease_time = 86400; /* 24 hours... */
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struct tree_cache *global_options[256];
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@@ -608,6 +612,14 @@ main(int argc, char **argv) {
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}
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#endif
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+#ifdef HAVE_LIBSYSTEMD_DAEMON
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+ /* We are ready to process incomming packets. Let's notify systemd */
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+ sd_notifyf(0, "READY=1\n"
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+ "STATUS=Dispatching packets...\n"
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+ "MAINPID=%lu",
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+ (unsigned long) getpid());
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+#endif
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+
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/* Start dispatching packets and timeouts... */
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dispatch();
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diff -up dhcp-4.2.5/server/dhcpd.c.sd-daemon dhcp-4.2.5/server/dhcpd.c
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--- dhcp-4.2.5/server/dhcpd.c.sd-daemon 2014-07-07 12:13:21.419323370 +0200
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+++ dhcp-4.2.5/server/dhcpd.c 2014-07-07 12:16:57.838319165 +0200
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@@ -60,6 +60,10 @@ static const char url [] =
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#include "trace.h"
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+#ifdef HAVE_LIBSYSTEMD_DAEMON
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+#include <systemd/sd-daemon.h>
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+#endif
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+
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#ifndef UNIT_TEST
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static void usage(void);
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#endif
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@@ -869,6 +873,15 @@ main(int argc, char **argv) {
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(omapi_object_t *)0, "state", server_running);
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TRACE(DHCPD_MAIN());
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+
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+#ifdef HAVE_LIBSYSTEMD_DAEMON
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+ /* We are ready to process incomming packets. Let's notify systemd */
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+ sd_notifyf(0, "READY=1\n"
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+ "STATUS=Dispatching packets...\n"
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+ "MAINPID=%lu",
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+ (unsigned long) getpid());
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+#endif
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+
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/* Receive packets and dispatch them... */
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dispatch ();
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