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node_modules/ip-address/src/common.ts
55 строк
1 KB
Buglov Evgeny
Первый коммит
27 фев 2026, 21:12
27 фев 2026, 21:12
e51dee3
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О чём код?
import { Address4 } from './ipv4'; import { Address6 } from './ipv6'; export interface ReverseFormOptions { omitSuffix?: boolean; } export function isInSubnet(this: Address4 | Address6, address: Address4 | Address6) { if (this.subnetMask < address.subnetMask) { return false; } if (this.mask(address.subnetMask) === address.mask()) { return true; } return false; } export function isCorrect(defaultBits: number) { return function (this: Address4 | Address6) { if (this.addressMinusSuffix !== this.correctForm()) { return false; } if (this.subnetMask === defaultBits && !this.parsedSubnet) { return true; } return this.parsedSubnet === String(this.subnetMask); }; } export function numberToPaddedHex(number: number) { return number.toString(16).padStart(2, '0'); } export function stringToPaddedHex(numberString: string) { return numberToPaddedHex(parseInt(numberString, 10)); } /** * @param binaryValue Binary representation of a value (e.g. `10`) * @param position Byte position, where 0 is the least significant bit */ export function testBit(binaryValue: string, position: number): boolean { const { length } = binaryValue; if (position > length) { return false; } const positionInString = length - position; return binaryValue.substring(positionInString, positionInString + 1) === '1'; }