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705 BJavaScriptView Raw
1/**
2 * Convert array of 16 byte values to UUID string format of the form:
3 * XXXXXXXX-XXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
4 */
5var byteToHex = [];
6for (var i = 0; i < 256; ++i) {
7 byteToHex[i] = (i + 0x100).toString(16).substr(1);
8}
9
10function bytesToUuid(buf, offset) {
11 var i = offset || 0;
12 var bth = byteToHex;
13 return bth[buf[i++]] + bth[buf[i++]] +
14 bth[buf[i++]] + bth[buf[i++]] + '-' +
15 bth[buf[i++]] + bth[buf[i++]] + '-' +
16 bth[buf[i++]] + bth[buf[i++]] + '-' +
17 bth[buf[i++]] + bth[buf[i++]] + '-' +
18 bth[buf[i++]] + bth[buf[i++]] +
19 bth[buf[i++]] + bth[buf[i++]] +
20 bth[buf[i++]] + bth[buf[i++]];
21}
22
23module.exports = bytesToUuid;