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fixed extract bug when filename is exactly 100 chars

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This commit is contained in:
Mathias Buus 2014-01-13 21:34:55 +01:00
parent 0042359203
commit 4d1e031a7c
1 changed files with 11 additions and 11 deletions
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22
headers.js
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@ -68,11 +68,11 @@ var alloc = function(size) {
return buf;
};
var indexOf = function(block, num, offset) {
for (; offset < block.length; offset++) {
var indexOf = function(block, num, offset, end) {
for (; offset < end; offset++) {
if (block[offset] === num) return offset;
}
return -1;
return end;
};
var cksum = function(block) {
@ -88,11 +88,11 @@ var encodeOct = function(val, n) {
};
var decodeOct = function(val, offset) {
return parseInt(val.slice(offset, clamp(indexOf(val, 32, offset), val.length, val.length)).toString(), 8);
return parseInt(val.slice(offset, clamp(indexOf(val, 32, offset, val.length), val.length, val.length)).toString(), 8);
};
var decodeStr = function(val, offset) {
return val.slice(offset, indexOf(val, 0, offset)).toString();
var decodeStr = function(val, offset, length) {
return val.slice(offset, indexOf(val, 0, offset, offset+length)).toString();
};
var addLength = function(str) {
@ -178,19 +178,19 @@ exports.decode = function(buf) {
if (!type) return null;
var name = decodeStr(buf, 0);
var name = decodeStr(buf, 0, 100);
var mode = decodeOct(buf, 100);
var uid = decodeOct(buf, 108);
var gid = decodeOct(buf, 116);
var size = decodeOct(buf, 124);
var mtime = decodeOct(buf, 136);
var linkname = buf[157] === 0 ? null : decodeStr(buf, 157);
var uname = decodeStr(buf, 265);
var gname = decodeStr(buf, 297);
var linkname = buf[157] === 0 ? null : decodeStr(buf, 157, 100);
var uname = decodeStr(buf, 265, 32);
var gname = decodeStr(buf, 297, 32);
var devmajor = decodeOct(buf, 329);
var devminor = decodeOct(buf, 337);
if (buf[345]) name = decodeStr(buf, 345)+'/'+name;
if (buf[345]) name = decodeStr(buf, 345, 155)+'/'+name;
if (cksum(buf) !== decodeOct(buf, 148)) return null;