FM / lib

/var/www/myprog.com.ua/server/node/node_modules/tar/lib/

/var/www/myprog.com.ua/server/node/node_modules/tar/lib

Name	Size	Mode	Actions
create.js	2395	0644	edit dl rm
extract.js	2852	0644	edit dl rm
get-write-flag.js	921	0644	edit dl rm
header.js	9154	0644	edit dl rm
high-level-opt.js	760	0644	edit dl rm
large-numbers.js	2229	0644	edit dl rm
list.js	3224	0644	edit dl rm
mkdir.js	5485	0644	edit dl rm
mode-fix.js	649	0644	edit dl rm
normalize-unicode.js	412	0644	edit dl rm
normalize-windows-path.js	410	0644	edit dl rm
pack.js	10021	0644	edit dl rm
parse.js	16322	0644	edit dl rm
path-reservations.js	4410	0644	edit dl rm
pax.js	4068	0644	edit dl rm
read-entry.js	2842	0644	edit dl rm
replace.js	5776	0644	edit dl rm
strip-absolute-path.js	917	0644	edit dl rm
strip-trailing-slashes.js	394	0644	edit dl rm
types.js	1096	0644	edit dl rm
unpack.js	25835	0644	edit dl rm
update.js	937	0644	edit dl rm
warn-mixin.js	725	0644	edit dl rm
winchars.js	535	0644	edit dl rm
write-entry.js	15300	0644	edit dl rm

Edit: /var/www/myprog.com.ua/server/node/node_modules/tar/lib/large-numbers.js (2229B)

'use strict'
// Tar can encode large and negative numbers using a leading byte of
// 0xff for negative, and 0x80 for positive.

const encode = (num, buf) => {
  if (!Number.isSafeInteger(num)) {
  // The number is so large that javascript cannot represent it with integer
  // precision.
    throw Error('cannot encode number outside of javascript safe integer range')
  } else if (num < 0) {
    encodeNegative(num, buf)
  } else {
    encodePositive(num, buf)
  }
  return buf
}

const encodePositive = (num, buf) => {
  buf[0] = 0x80

for (var i = buf.length; i > 1; i--) {
    buf[i - 1] = num & 0xff
    num = Math.floor(num / 0x100)
  }
}

const encodeNegative = (num, buf) => {
  buf[0] = 0xff
  var flipped = false
  num = num * -1
  for (var i = buf.length; i > 1; i--) {
    var byte = num & 0xff
    num = Math.floor(num / 0x100)
    if (flipped) {
      buf[i - 1] = onesComp(byte)
    } else if (byte === 0) {
      buf[i - 1] = 0
    } else {
      flipped = true
      buf[i - 1] = twosComp(byte)
    }
  }
}

const parse = (buf) => {
  const pre = buf[0]
  const value = pre === 0x80 ? pos(buf.slice(1, buf.length))
    : pre === 0xff ? twos(buf)
    : null
  if (value === null) {
    throw Error('invalid base256 encoding')
  }

if (!Number.isSafeInteger(value)) {
  // The number is so large that javascript cannot represent it with integer
  // precision.
    throw Error('parsed number outside of javascript safe integer range')
  }

return value
}

const twos = (buf) => {
  var len = buf.length
  var sum = 0
  var flipped = false
  for (var i = len - 1; i > -1; i--) {
    var byte = buf[i]
    var f
    if (flipped) {
      f = onesComp(byte)
    } else if (byte === 0) {
      f = byte
    } else {
      flipped = true
      f = twosComp(byte)
    }
    if (f !== 0) {
      sum -= f * Math.pow(256, len - i - 1)
    }
  }
  return sum
}

const pos = (buf) => {
  var len = buf.length
  var sum = 0
  for (var i = len - 1; i > -1; i--) {
    var byte = buf[i]
    if (byte !== 0) {
      sum += byte * Math.pow(256, len - i - 1)
    }
  }
  return sum
}

const onesComp = byte => (0xff ^ byte) & 0xff

const twosComp = byte => ((0xff ^ byte) + 1) & 0xff

module.exports = {
  encode,
  parse,
}

'use strict' // Tar can encode large and negative numbers using a leading byte of // 0xff for negative, and 0x80 for positive. const encode = (num, buf) => { if (!Number.isSafeInteger(num)) { // The number is so large that javascript cannot represent it with integer // precision. throw Error('cannot encode number outside of javascript safe integer range') } else if (num < 0) { encodeNegative(num, buf) } else { encodePositive(num, buf) } return buf } const encodePositive = (num, buf) => { buf[0] = 0x80 for (var i = buf.length; i > 1; i--) { buf[i - 1] = num & 0xff num = Math.floor(num / 0x100) } } const encodeNegative = (num, buf) => { buf[0] = 0xff var flipped = false num = num * -1 for (var i = buf.length; i > 1; i--) { var byte = num & 0xff num = Math.floor(num / 0x100) if (flipped) { buf[i - 1] = onesComp(byte) } else if (byte === 0) { buf[i - 1] = 0 } else { flipped = true buf[i - 1] = twosComp(byte) } } } const parse = (buf) => { const pre = buf[0] const value = pre === 0x80 ? pos(buf.slice(1, buf.length)) : pre === 0xff ? twos(buf) : null if (value === null) { throw Error('invalid base256 encoding') } if (!Number.isSafeInteger(value)) { // The number is so large that javascript cannot represent it with integer // precision. throw Error('parsed number outside of javascript safe integer range') } return value } const twos = (buf) => { var len = buf.length var sum = 0 var flipped = false for (var i = len - 1; i > -1; i--) { var byte = buf[i] var f if (flipped) { f = onesComp(byte) } else if (byte === 0) { f = byte } else { flipped = true f = twosComp(byte) } if (f !== 0) { sum -= f * Math.pow(256, len - i - 1) } } return sum } const pos = (buf) => { var len = buf.length var sum = 0 for (var i = len - 1; i > -1; i--) { var byte = buf[i] if (byte !== 0) { sum += byte * Math.pow(256, len - i - 1) } } return sum } const onesComp = byte => (0xff ^ byte) & 0xff const twosComp = byte => ((0xff ^ byte) + 1) & 0xff module.exports = { encode, parse, }