19 lines
685 B
TypeScript
19 lines
685 B
TypeScript
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/** Effective UID parsed from one Linux `/proc/<pid>/status` record. */
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export const parseLinuxProcessEffectiveUid = (
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value: string,
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): number | undefined => {
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let effectiveUid: number | undefined;
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for (const line of value.split("\n")) {
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if (!line.startsWith("Uid:")) continue;
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if (effectiveUid !== undefined) return undefined;
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const match = /^Uid:\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s*$/u.exec(
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line,
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);
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if (match === null) return undefined;
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const values = match.slice(1).map(Number);
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if (values.some((uid) => !Number.isSafeInteger(uid) || uid < 0))
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return undefined;
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effectiveUid = values[1];
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}
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return effectiveUid;
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};
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