enip-ts/dist/enip/cip/path/index.js

Typescript implementation of the Ethernet/IP™ protocol.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.CIP = void 0;
class CIP {
    /**
     * Parse a CIP Packet
     * @param buf buffer received
     * @returns decoded CIP Packet
     */
    static parse(buf) {
        const path = { class: 0, instance: 0, attribute: 0 };
        const service = buf[0];
        const requestPathSize = buf[1];
        for (let i = 0; i < requestPathSize * 2; i = i + 2) {
            switch (buf[2 + i]) {
                case 0x20: {
                    path.class = buf[3 + i];
                    break;
                }
                case 0x24: {
                    path.instance = buf[3 + i];
                    break;
                }
                case 0x30: {
                    path.attribute = buf[3 + i];
                    break;
                }
            }
        }
        const data = buf.slice(2 + requestPathSize * 2, buf.length);
        const dataBuffer = data.length > 0 ? data : undefined;
        return { service: service, path, data: dataBuffer };
    }
}
exports.CIP = CIP;
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