+/*
+ * Append the 'addr=' option to the options string to pass a resolved
+ * server address to the kernel. After a successful mount, this address
+ * is also added to /etc/mtab for use when unmounting.
+ *
+ * If 'addr=' is already present, we strip it out. This prevents users
+ * from setting a bogus 'addr=' option themselves, and also allows bg
+ * retries to recompute the server's address, in case it has changed.
+ *
+ * Returns 1 if 'addr=' option appended successfully;
+ * otherwise zero.
+ */
+static int nfs_append_addr_option(const struct sockaddr *sap,
+ socklen_t salen,
+ struct mount_options *options)
+{
+ po_remove_all(options, "addr");
+ return nfs_append_generic_address_option(sap, salen, "addr", options);
+}
+
+/*
+ * Called to discover our address and append an appropriate 'clientaddr='
+ * option to the options string.
+ *
+ * Returns 1 if 'clientaddr=' option created successfully or if
+ * 'clientaddr=' option is already present; otherwise zero.
+ */
+static int nfs_append_clientaddr_option(const struct sockaddr *sap,
+ socklen_t salen,
+ struct mount_options *options)