3 var util = require("util");
5 function toString(val) {
7 while (val.length < 4) {
13 var defaultUmask = 18; // 0022;
14 var defaultUmaskString = toString(defaultUmask);
16 function validate(data, k, val) {
17 // must be either an integer or an octal string.
18 if (typeof val === "number" && !isNaN(val)) {
23 if (typeof val === "string") {
24 if (val.charAt(0) !== "0") {
27 data[k] = parseInt(val, 8);
34 function convert_fromString(val, cb) {
35 if (typeof val === "string") {
36 // check for octal string first
37 if (val.charAt(0) === '0' && /^[0-7]+$/.test(val)) {
38 val = parseInt(val, 8);
39 } else if (val.charAt(0) !== '0' && /^[0-9]+$/.test(val)) {
40 // legacy support for decimal strings
41 val = parseInt(val, 10);
43 return cb(new Error(util.format("Expected octal string, got %j, defaulting to %j",
44 val, defaultUmaskString)),
47 } else if (typeof val !== "number") {
48 return cb(new Error(util.format("Expected number or octal string, got %j, defaulting to %j",
49 val, defaultUmaskString)),
53 val = Math.floor(val);
55 if ((val < 0) || (val > 511)) {
56 return cb(new Error(util.format("Must be in range 0..511 (0000..0777), got %j", val)),
63 function fromString(val, cb) {
65 // synchronous callback, no zalgo
66 convert_fromString(val, cb || function (err, result) {
67 /*jslint unparam:true*/
74 exports.toString = toString;
75 exports.fromString = fromString;
76 exports.validate = validate;