61 lines
2.0 KiB
JavaScript
61 lines
2.0 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.signMachOExecutable = exports.patchMachOExecutable = void 0;
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const child_process_1 = require("child_process");
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function parseCStr(buf) {
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for (let i = 0; i < buf.length; i += 1) {
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if (buf[i] === 0) {
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return buf.slice(0, i).toString();
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}
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}
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}
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function patchCommand(type, buf, file) {
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// segment_64
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if (type === 0x19) {
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const name = parseCStr(buf.slice(0, 16));
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if (name === '__LINKEDIT') {
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const fileoff = buf.readBigUInt64LE(32);
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const vmsizePatched = BigInt(file.length) - fileoff;
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const filesizePatched = vmsizePatched;
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buf.writeBigUInt64LE(vmsizePatched, 24);
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buf.writeBigUInt64LE(filesizePatched, 40);
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}
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}
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// symtab
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if (type === 0x2) {
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const stroff = buf.readUInt32LE(8);
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const strsizePatched = file.length - stroff;
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buf.writeUInt32LE(strsizePatched, 12);
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}
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}
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function patchMachOExecutable(file) {
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const align = 8;
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const hsize = 32;
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const ncmds = file.readUInt32LE(16);
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const buf = file.slice(hsize);
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for (let offset = 0, i = 0; i < ncmds; i += 1) {
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const type = buf.readUInt32LE(offset);
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offset += 4;
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const size = buf.readUInt32LE(offset) - 8;
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offset += 4;
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patchCommand(type, buf.slice(offset, offset + size), file);
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offset += size;
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if (offset & align) {
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offset += align - (offset & align);
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}
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}
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return file;
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}
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exports.patchMachOExecutable = patchMachOExecutable;
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function signMachOExecutable(executable) {
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try {
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(0, child_process_1.execFileSync)('codesign', ['-f', '--sign', '-', executable], {
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stdio: 'inherit',
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});
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}
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catch (_a) {
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(0, child_process_1.execFileSync)('ldid', ['-Cadhoc', '-S', executable], { stdio: 'inherit' });
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}
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}
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exports.signMachOExecutable = signMachOExecutable;
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//# sourceMappingURL=mach-o.js.map
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