diff --git a/libtirpc/src/auth_none.c b/libtirpc/src/auth_none.c
index 5bfa48a..1afad5e 100644
--- a/libtirpc/src/auth_none.c
+++ b/libtirpc/src/auth_none.c
@@ -156,8 +156,14 @@ authnone_destroy(AUTH *client)
 {
 }
 
-static bool_t
-authnone_wrap(AUTH *auth, XDR *xdrs, xdrproc_t func, caddr_t args, u_int seq)
+static int
+authnone_wrap(AUTH *auth, XDR *xdrs, xdrproc_t func, caddr_t args)
+{
+    return ((*func)(xdrs, args));
+}
+
+static int
+authnone_unwrap(AUTH *auth, XDR *xdrs, xdrproc_t func, caddr_t args, u_int seq)
 {
     return ((*func)(xdrs, args));
 }
@@ -178,7 +184,7 @@ authnone_ops()
 		ops.ah_refresh = authnone_refresh;
 		ops.ah_destroy = authnone_destroy;
         ops.ah_wrap = authnone_wrap;
-        ops.ah_unwrap = authnone_wrap;
+        ops.ah_unwrap = authnone_unwrap;
 	}
 	mutex_unlock(&ops_lock);
 	return (&ops);
diff --git a/libtirpc/src/auth_sspi.c b/libtirpc/src/auth_sspi.c
index 2456c2e..7664809 100644
--- a/libtirpc/src/auth_sspi.c
+++ b/libtirpc/src/auth_sspi.c
@@ -40,7 +40,7 @@ static bool_t authsspi_validate(AUTH *auth, struct opaque_auth *verf, u_int seq)
 static void	authsspi_destroy(AUTH *auth);
 static void	authsspi_destroy_context(AUTH *auth);
 static bool_t authsspi_wrap(AUTH *auth, XDR *xdrs, xdrproc_t xdr_func, caddr_t xdr_ptr);
-static bool_t authsspi_unwrap(AUTH *auth, XDR *xdrs, xdrproc_t xdr_func, caddr_t xdr_ptr);
+static bool_t authsspi_unwrap(AUTH *auth, XDR *xdrs, xdrproc_t xdr_func, caddr_t xdr_ptr, u_int seq);
 
 static struct auth_ops authsspi_ops = {
 	authsspi_nextverf,
@@ -143,7 +143,7 @@ authsspi_create_default(CLIENT *clnt, char *service, int svc)
 	log_debug("in authgss_create_default() for %s", service);
 
 	sname.value = service;
-	sname.length = strlen(service);
+	sname.length = (int)strlen(service);
 #if 0
 	maj_stat = gss_import_name(&min_stat, &sname,
 		(gss_OID)GSS_C_NT_HOSTBASED_SERVICE,
@@ -781,7 +781,7 @@ out:
     return maj_stat;
 }
 
-uint32_t sspi_upwrap(PCtxtHandle ctx, sspi_buffer_desc *bufin, 
+uint32_t sspi_unwrap(PCtxtHandle ctx, sspi_buffer_desc *bufin, 
                      sspi_buffer_desc *bufout, u_int *conf_state, 
                      u_int *qop_state)
 {
diff --git a/libtirpc/src/authsspi_prot.c b/libtirpc/src/authsspi_prot.c
index 5539faa..b1eba5b 100644
--- a/libtirpc/src/authsspi_prot.c
+++ b/libtirpc/src/authsspi_prot.c
@@ -248,7 +248,7 @@ xdr_rpc_sspi_unwrap_data(XDR *xdrs, xdrproc_t xdr_func, caddr_t xdr_ptr,
 		maj_stat = gss_unwrap(&min_stat, ctx, &wrapbuf, &databuf,
 				      &conf_state, &qop_state);
 #else
-        maj_stat = sspi_upwrap(ctx, &wrapbuf, &databuf, &conf_state, &qop_state);
+        maj_stat = sspi_unwrap(ctx, &wrapbuf, &databuf, &conf_state, &qop_state);
 #endif
 #if 0
 		gss_release_buffer(&min_stat, &wrapbuf);