+/**
+ * sendfile(outfd, infd, length)
+ */
+static int nixio_sendfile(lua_State *L) {
+ int sockfd = nixio__checksockfd(L);
+ int infd = nixio__checkfd(L, 2);
+ size_t len = luaL_checkinteger(L, 3);
+
+ long spliced = sendfile(sockfd, infd, NULL, len);