secretive/SecretAgentKit/FileHandleProtocols.swift

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Swift
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2020-03-24 06:22:22 +00:00
import Foundation
public protocol FileHandleReader {
var availableData: Data { get }
var fileDescriptor: Int32 { get }
var pidOfConnectedProcess: Int32 { get }
}
public protocol FileHandleWriter {
func write(_ data: Data)
}
extension FileHandle: FileHandleReader, FileHandleWriter {
public var pidOfConnectedProcess: Int32 {
let pidPointer = UnsafeMutableRawPointer.allocate(byteCount: 4, alignment: 1)
var len = socklen_t(MemoryLayout<Int32>.size)
getsockopt(fileDescriptor, SOCK_STREAM, LOCAL_PEERPID, pidPointer, &len)
return pidPointer.load(as: Int32.self)
}
}