问题
I am playing with CocoaAsyncSocket in Swift to bind to a UDP socket and receive messages over the local network.
I am initialising a socket, and trying to bind to a port but am getting a NSPOSIXErrorDomain
error. Perhaps indicating some sort of permissions issue?
My code:
import Cocoa
import CocoaAsyncSocket
@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate, GCDAsyncUdpSocketDelegate {
func applicationDidFinishLaunching(_ aNotification: Notification) {
let socket = GCDAsyncUdpSocket.init(delegate: self, delegateQueue: DispatchQueue.main)
do {
try socket.bind(toPort: 53401)
} catch let msg {
NSLog("Error....\(msg)")
}
}
}
Full error:
Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted" UserInfo={NSLocalizedDescription=Operation not permitted, NSLocalizedFailureReason=Error in bind() function}
回答1:
I believe it's the generated Xcode entitlements that prevent from binding. I changed those values to false
and now the bind works
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>com.apple.security.app-sandbox</key>
<false/>
<key>com.apple.security.files.user-selected.read-only</key>
<false/>
</dict>
</plist>
来源:https://stackoverflow.com/questions/47797446/nsposixerrordomain-when-binding-to-socket-on-macos-10-12