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Apple NSURLError and CFNetworkError codes
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| typedef CF_ENUM(int, CFNetworkErrors) { | |
| kCFHostErrorHostNotFound = 1, | |
| kCFHostErrorUnknown = 2, // Query the kCFGetAddrInfoFailureKey to get the value returned from getaddrinfo; lookup in netdb.h | |
| // SOCKS errors; in all cases you may query kCFSOCKSStatusCodeKey to recover the status code returned by the server | |
| kCFSOCKSErrorUnknownClientVersion = 100, | |
| kCFSOCKSErrorUnsupportedServerVersion = 101, // Query the kCFSOCKSVersionKey to find the version requested by the server | |
| // SOCKS4-specific errors | |
| kCFSOCKS4ErrorRequestFailed = 110, // request rejected or failed by the server | |
| kCFSOCKS4ErrorIdentdFailed = 111, // request rejected because SOCKS server cannot connect to identd on the client | |
| kCFSOCKS4ErrorIdConflict = 112, // request rejected because the client program and identd report different user-ids | |
| kCFSOCKS4ErrorUnknownStatusCode = 113, | |
| // SOCKS5-specific errors | |
| kCFSOCKS5ErrorBadState = 120, | |
| kCFSOCKS5ErrorBadResponseAddr = 121, | |
| kCFSOCKS5ErrorBadCredentials = 122, | |
| kCFSOCKS5ErrorUnsupportedNegotiationMethod = 123, // query kCFSOCKSNegotiationMethodKey to find the method requested | |
| kCFSOCKS5ErrorNoAcceptableMethod = 124, | |
| // FTP errors; query the kCFFTPStatusCodeKey to get the status code returned by the server | |
| kCFFTPErrorUnexpectedStatusCode = 200, | |
| // HTTP errors | |
| kCFErrorHTTPAuthenticationTypeUnsupported = 300, | |
| kCFErrorHTTPBadCredentials = 301, | |
| kCFErrorHTTPConnectionLost = 302, | |
| kCFErrorHTTPParseFailure = 303, | |
| kCFErrorHTTPRedirectionLoopDetected = 304, | |
| kCFErrorHTTPBadURL = 305, | |
| kCFErrorHTTPProxyConnectionFailure = 306, | |
| kCFErrorHTTPBadProxyCredentials = 307, | |
| kCFErrorPACFileError = 308, | |
| kCFErrorPACFileAuth = 309, | |
| kCFErrorHTTPSProxyConnectionFailure = 310, | |
| kCFStreamErrorHTTPSProxyFailureUnexpectedResponseToCONNECTMethod = 311, | |
| // Error codes for CFURLConnection and CFURLProtocol | |
| kCFURLErrorBackgroundSessionInUseByAnotherProcess = -996, | |
| kCFURLErrorBackgroundSessionWasDisconnected = -997, | |
| kCFURLErrorUnknown = -998, | |
| kCFURLErrorCancelled = -999, | |
| kCFURLErrorBadURL = -1000, | |
| kCFURLErrorTimedOut = -1001, | |
| kCFURLErrorUnsupportedURL = -1002, | |
| kCFURLErrorCannotFindHost = -1003, | |
| kCFURLErrorCannotConnectToHost = -1004, | |
| kCFURLErrorNetworkConnectionLost = -1005, | |
| kCFURLErrorDNSLookupFailed = -1006, | |
| kCFURLErrorHTTPTooManyRedirects = -1007, | |
| kCFURLErrorResourceUnavailable = -1008, | |
| kCFURLErrorNotConnectedToInternet = -1009, | |
| kCFURLErrorRedirectToNonExistentLocation = -1010, | |
| kCFURLErrorBadServerResponse = -1011, | |
| kCFURLErrorUserCancelledAuthentication = -1012, | |
| kCFURLErrorUserAuthenticationRequired = -1013, | |
| kCFURLErrorZeroByteResource = -1014, | |
| kCFURLErrorCannotDecodeRawData = -1015, | |
| kCFURLErrorCannotDecodeContentData = -1016, | |
| kCFURLErrorCannotParseResponse = -1017, | |
| kCFURLErrorInternationalRoamingOff = -1018, | |
| kCFURLErrorCallIsActive = -1019, | |
| kCFURLErrorDataNotAllowed = -1020, | |
| kCFURLErrorRequestBodyStreamExhausted = -1021, | |
| kCFURLErrorAppTransportSecurityRequiresSecureConnection = -1022, | |
| kCFURLErrorFileDoesNotExist = -1100, | |
| kCFURLErrorFileIsDirectory = -1101, | |
| kCFURLErrorNoPermissionsToReadFile = -1102, | |
| kCFURLErrorDataLengthExceedsMaximum = -1103, | |
| kCFURLErrorFileOutsideSafeArea = -1104, | |
| // SSL errors | |
| kCFURLErrorSecureConnectionFailed = -1200, | |
| kCFURLErrorServerCertificateHasBadDate = -1201, | |
| kCFURLErrorServerCertificateUntrusted = -1202, | |
| kCFURLErrorServerCertificateHasUnknownRoot = -1203, | |
| kCFURLErrorServerCertificateNotYetValid = -1204, | |
| kCFURLErrorClientCertificateRejected = -1205, | |
| kCFURLErrorClientCertificateRequired = -1206, | |
| kCFURLErrorCannotLoadFromNetwork = -2000, | |
| // Download and file I/O errors | |
| kCFURLErrorCannotCreateFile = -3000, | |
| kCFURLErrorCannotOpenFile = -3001, | |
| kCFURLErrorCannotCloseFile = -3002, | |
| kCFURLErrorCannotWriteToFile = -3003, | |
| kCFURLErrorCannotRemoveFile = -3004, | |
| kCFURLErrorCannotMoveFile = -3005, | |
| kCFURLErrorDownloadDecodingFailedMidStream = -3006, | |
| kCFURLErrorDownloadDecodingFailedToComplete = -3007, | |
| // Cookie errors | |
| kCFHTTPCookieCannotParseCookieFile = -4000, | |
| // Errors originating from CFNetServices | |
| kCFNetServiceErrorUnknown = -72000L, | |
| kCFNetServiceErrorCollision = -72001L, | |
| kCFNetServiceErrorNotFound = -72002L, | |
| kCFNetServiceErrorInProgress = -72003L, | |
| kCFNetServiceErrorBadArgument = -72004L, | |
| kCFNetServiceErrorCancel = -72005L, | |
| kCFNetServiceErrorInvalid = -72006L, | |
| kCFNetServiceErrorTimeout = -72007L, | |
| kCFNetServiceErrorDNSServiceFailure = -73000L // An error from DNS discovery; look at kCFDNSServiceFailureKey to get the error number and interpret using dns_sd.h | |
| }; |
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| NS_ERROR_ENUM(NSURLErrorDomain) | |
| { | |
| NSURLErrorUnknown = -1, | |
| NSURLErrorCancelled = -999, | |
| NSURLErrorBadURL = -1000, | |
| NSURLErrorTimedOut = -1001, | |
| NSURLErrorUnsupportedURL = -1002, | |
| NSURLErrorCannotFindHost = -1003, | |
| NSURLErrorCannotConnectToHost = -1004, | |
| NSURLErrorNetworkConnectionLost = -1005, | |
| NSURLErrorDNSLookupFailed = -1006, | |
| NSURLErrorHTTPTooManyRedirects = -1007, | |
| NSURLErrorResourceUnavailable = -1008, | |
| NSURLErrorNotConnectedToInternet = -1009, | |
| NSURLErrorRedirectToNonExistentLocation = -1010, | |
| NSURLErrorBadServerResponse = -1011, | |
| NSURLErrorUserCancelledAuthentication = -1012, | |
| NSURLErrorUserAuthenticationRequired = -1013, | |
| NSURLErrorZeroByteResource = -1014, | |
| NSURLErrorCannotDecodeRawData = -1015, | |
| NSURLErrorCannotDecodeContentData = -1016, | |
| NSURLErrorCannotParseResponse = -1017, | |
| NSURLErrorAppTransportSecurityRequiresSecureConnection API_AVAILABLE(macos(10.11), ios(9.0), watchos(2.0), tvos(9.0)) = -1022, | |
| NSURLErrorFileDoesNotExist = -1100, | |
| NSURLErrorFileIsDirectory = -1101, | |
| NSURLErrorNoPermissionsToReadFile = -1102, | |
| NSURLErrorDataLengthExceedsMaximum API_AVAILABLE(macos(10.5), ios(2.0), watchos(2.0), tvos(9.0)) = -1103, | |
| NSURLErrorFileOutsideSafeArea API_AVAILABLE(macos(10.12.4), ios(10.3), watchos(3.2), tvos(10.2)) = -1104, | |
| // SSL errors | |
| NSURLErrorSecureConnectionFailed = -1200, | |
| NSURLErrorServerCertificateHasBadDate = -1201, | |
| NSURLErrorServerCertificateUntrusted = -1202, | |
| NSURLErrorServerCertificateHasUnknownRoot = -1203, | |
| NSURLErrorServerCertificateNotYetValid = -1204, | |
| NSURLErrorClientCertificateRejected = -1205, | |
| NSURLErrorClientCertificateRequired = -1206, | |
| NSURLErrorCannotLoadFromNetwork = -2000, | |
| // Download and file I/O errors | |
| NSURLErrorCannotCreateFile = -3000, | |
| NSURLErrorCannotOpenFile = -3001, | |
| NSURLErrorCannotCloseFile = -3002, | |
| NSURLErrorCannotWriteToFile = -3003, | |
| NSURLErrorCannotRemoveFile = -3004, | |
| NSURLErrorCannotMoveFile = -3005, | |
| NSURLErrorDownloadDecodingFailedMidStream = -3006, | |
| NSURLErrorDownloadDecodingFailedToComplete =-3007, | |
| NSURLErrorInternationalRoamingOff API_AVAILABLE(macos(10.7), ios(3.0), watchos(2.0), tvos(9.0)) = -1018, | |
| NSURLErrorCallIsActive API_AVAILABLE(macos(10.7), ios(3.0), watchos(2.0), tvos(9.0)) = -1019, | |
| NSURLErrorDataNotAllowed API_AVAILABLE(macos(10.7), ios(3.0), watchos(2.0), tvos(9.0)) = -1020, | |
| NSURLErrorRequestBodyStreamExhausted API_AVAILABLE(macos(10.7), ios(3.0), watchos(2.0), tvos(9.0)) = -1021, | |
| NSURLErrorBackgroundSessionRequiresSharedContainer API_AVAILABLE(macos(10.10), ios(8.0), watchos(2.0), tvos(9.0)) = -995, | |
| NSURLErrorBackgroundSessionInUseByAnotherProcess API_AVAILABLE(macos(10.10), ios(8.0), watchos(2.0), tvos(9.0)) = -996, | |
| NSURLErrorBackgroundSessionWasDisconnected API_AVAILABLE(macos(10.10), ios(8.0), watchos(2.0), tvos(9.0))= -997, | |
| }; |
@isaac-weisberg this Gist is super old: from 2017. I don't even remember what was it used for.
I suggest you check our the latest NSURLError.h and CFNetworkErrors.h in Xcode or, if you're searching for an error by code, use a wonderful https://www.osstatus.com/ for that.
For those looking for a tool to find these codes, check out a repo I just published: https://github.com/AvdLee/WhatTheErrorCode
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Jesus lord, just what I needed