File _service:tar_scm:backport-0022-dhclient-make-su... of Package dhcp

File _service:tar_scm:backport-0022-dhclient-make-sure-link-local-address-is-ready-in-st.patch of Package dhcp (Revision 6b0fe71c7e0fafe988c2c89c09ee1b2a)

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Reference: https://src.fedoraproject.org/rpms/dhcp/blob/rawhide/f/0022-dhclient-make-sure-link-local-address-is-ready-in-st.patch
From 1f8681acba9ab70fbe17c85e5a1f4ce6a648b55d Mon Sep 17 00:00:00 2001
From: Pavel Zhukov <pzhukov@redhat.com>
Date: Thu, 28 Feb 2019 15:30:21 +0100
Subject: [PATCH 22/28] dhclient: make sure link-local address is ready in
 stateless mode

Bug-url: https://bugzilla.redhat.com/1263466
---
 client/dhclient.c | 30 ++++++++++++++++++++----------
 1 file changed, 20 insertions(+), 10 deletions(-)

diff --git a/client/dhclient.c b/client/dhclient.c
index 6bbefc7..60836b4 100644
--- a/client/dhclient.c
+++ b/client/dhclient.c
@@ -943,6 +943,12 @@ main(int argc, char **argv) {
 
 	inaddr_any.s_addr = INADDR_ANY;
 
+	/* Discover all the network interfaces. */
+	discover_interfaces(DISCOVER_UNCONFIGURED);
+
+	/* Parse the dhclient.conf file. */
+	read_client_conf();
+
 	/* Stateless special case. */
 	if (stateless) {
 		if (release_mode || (wanted_ia_na > 0) ||
@@ -959,12 +965,6 @@ main(int argc, char **argv) {
 		finish(0);
 	}
 
-	/* Discover all the network interfaces. */
-	discover_interfaces(DISCOVER_UNCONFIGURED);
-
-	/* Parse the dhclient.conf file. */
-	read_client_conf();
-
 	/* Parse any extra command line configuration arguments: */
 	if ((dhcp_client_identifier_arg != NULL) && (*dhcp_client_identifier_arg != '\0')) {
 		arg_conf_len = asprintf(&arg_conf, "send dhcp-client-identifier \"%s\";", dhcp_client_identifier_arg);
@@ -1433,20 +1433,30 @@ void run_stateless(int exit_mode, u_int16_t port)
 	IGNORE_UNUSED(port);
 #endif
 
-	/* Discover the network interface. */
-	discover_interfaces(DISCOVER_REQUESTED);
+	struct interface_info *ip;
 
 	if (!interfaces)
 		usage("No interfaces available for stateless command: %s", "-S");
 
-	/* Parse the dhclient.conf file. */
 #ifdef DHCP4o6
 	if (dhcpv4_over_dhcpv6) {
 		/* Mark we want to request IRT too! */
 		dhcpv4_over_dhcpv6++;
 	}
 #endif
-	read_client_conf();
+
+	for (ip = interfaces; ip; ip = ip->next) {
+		if ((interfaces_requested > 0) &&
+		    ((ip->flags & (INTERFACE_REQUESTED |
+				   INTERFACE_AUTOMATIC)) !=
+		     INTERFACE_REQUESTED))
+			continue;
+		script_init(ip->client, "PREINIT6", NULL);
+		script_go(ip->client);
+	}
+
+	/* Discover the network interface. */
+	discover_interfaces(DISCOVER_REQUESTED);
 
 	/* Parse the lease database. */
 	read_client_leases();
-- 
2.35.1