X-Git-Url: https://git.decadent.org.uk/gitweb/?a=blobdiff_plain;f=utils%2Fmount%2Fnfsumount.c;h=9d798a2ff347513779b646b88692ae873844b158;hb=25dd860f13b93109dfd54ef8be0bfd91e4353af1;hp=ba2790068dcc79de499939b08d1d86e9972b3639;hpb=19ba81f64447dca205362a119f1e72701438aecc;p=nfs-utils.git

diff --git a/utils/mount/nfsumount.c b/utils/mount/nfsumount.c
index ba27900..9d798a2 100644
--- a/utils/mount/nfsumount.c
+++ b/utils/mount/nfsumount.c
@@ -169,24 +169,35 @@ out:
 static int nfs_umount_do_umnt(struct mount_options *options,
 			      char **hostname, char **dirname)
 {
-	struct sockaddr_storage address;
-	struct sockaddr *sap = (struct sockaddr *)&address;
+	union {
+		struct sockaddr		sa;
+		struct sockaddr_in	s4;
+		struct sockaddr_in6	s6;
+	} address;
+	struct sockaddr *sap = &address.sa;
 	socklen_t salen = sizeof(address);
 	struct pmap nfs_pmap, mnt_pmap;
+	sa_family_t family;
 
 	if (!nfs_options2pmap(options, &nfs_pmap, &mnt_pmap)) {
 		nfs_error(_("%s: bad mount options"), progname);
 		return EX_FAIL;
 	}
 
+	/* Skip UMNT call for vers=4 mounts */
+	if (nfs_pmap.pm_vers == 4)
+		return EX_SUCCESS;
+
 	*hostname = nfs_umount_hostname(options, *hostname);
 	if (!*hostname) {
 		nfs_error(_("%s: out of memory"), progname);
 		return EX_FAIL;
 	}
 
-	if (nfs_name_to_address(*hostname, sap, &salen) == 0)
-		/* nfs_name_to_address reports any errors */
+	if (!nfs_mount_proto_family(options, &family))
+		return 0;
+	if (!nfs_lookup(*hostname, family, sap, &salen))
+		/* nfs_lookup reports any errors */
 		return EX_FAIL;
 
 	if (nfs_advise_umount(sap, salen, &mnt_pmap, dirname) == 0)
@@ -336,7 +347,7 @@ int nfsumount(int argc, char *argv[])
 			char *opt = hasmntopt(&mc->m, "user");
 			struct passwd *pw;
 			char *comma;
-			int len;
+			size_t len;
 			if (!opt)
 				goto only_root;
 			if (opt[4] != '=')