commit f7f6d01a83d136c98acbc1d7f098da25097bd0b6
Author: Armin K <krejzi@email.com>
Date:   Thu Jun 18 11:59:18 2015 -0400

    __rpc_get_default_domain is undefined with LDFLAGS=-Wl,--no-undefined
    
    commit 109ccb9fe removed the __rpc_get_default_domain()
    interface which is not defined in the glibc. This
    brings the interface back.
    
    Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
    Signed-off-by: Steve Dickson <steved@redhat.com>

diff --git a/src/Makefile.am b/src/Makefile.am
index 6cc567a..66fcc6c 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -69,7 +69,7 @@ if GSS
 endif
 
 libtirpc_la_SOURCES += key_call.c key_prot_xdr.c getpublickey.c
-libtirpc_la_SOURCES += netname.c netnamer.c rtime.c
+libtirpc_la_SOURCES += netname.c netnamer.c rpcdname.c rtime.c
 
 CLEANFILES	       = cscope.* *~
 DISTCLEANFILES	       = Makefile.in
diff --git a/src/rpcdname.c b/src/rpcdname.c
new file mode 100644
index 0000000..3e6a988
--- /dev/null
+++ b/src/rpcdname.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2009, Sun Microsystems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * - Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ * - Neither the name of Sun Microsystems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * rpcdname.c
+ * Gets the default domain name
+ */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+static char *default_domain = 0;
+
+static char *
+get_default_domain()
+{
+	char temp[256];
+
+	if (default_domain)
+		return (default_domain);
+	if (getdomainname(temp, sizeof(temp)) < 0)
+		return (0);
+	if ((int) strlen(temp) > 0) {
+		default_domain = (char *)malloc((strlen(temp)+(unsigned)1));
+		if (default_domain == 0)
+			return (0);
+		(void) strcpy(default_domain, temp);
+		return (default_domain);
+	}
+	return (0);
+}
+
+/*
+ * This is a wrapper for the system call getdomainname which returns a
+ * ypclnt.h error code in the failure case.  It also checks to see that
+ * the domain name is non-null, knowing that the null string is going to
+ * get rejected elsewhere in the NIS client package.
+ */
+int
+__rpc_get_default_domain(domain)
+	char **domain;
+{
+	if ((*domain = get_default_domain()) != 0)
+		return (0);
+	return (-1);
+}