From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Mon, 4 Aug 2014 15:21:26 +0000 (+0200)
Subject: cmdmon: allow binding to address that doesn't exist yet
X-Git-Tag: 1.31-pre1~38
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=29647c828015df5db9a558351fe65b12f1014cee;p=thirdparty%2Fchrony.git

cmdmon: allow binding to address that doesn't exist yet
---

diff --git a/cmdmon.c b/cmdmon.c
index bde2a6f8..37f0d3d3 100644
--- a/cmdmon.c
+++ b/cmdmon.c
@@ -199,6 +199,14 @@ prepare_socket(int family, int port_number)
     LOG(LOGS_ERR, LOGF_CmdMon, "Could not set reuseaddr socket options");
     /* Don't quit - we might survive anyway */
   }
+
+#ifdef IP_FREEBIND
+  /* Allow binding to address that doesn't exist yet */
+  if (setsockopt(sock_fd, IPPROTO_IP, IP_FREEBIND, (char *)&on_off, sizeof(on_off)) < 0) {
+    LOG(LOGS_ERR, LOGF_CmdMon, "Could not set free bind socket option");
+  }
+#endif
+
 #ifdef HAVE_IPV6
   if (family == AF_INET6) {
 #ifdef IPV6_V6ONLY