From: Tobias Klauser <tklauser@distanz.ch>
Date: Thu, 16 Mar 2023 18:23:34 +0000 (+0100)
Subject: syscall: let errors.ErrUnsupported match ERROR_NOT_SUPPORTED and ERROR_CALL_NOT_IMPLE... 
X-Git-Tag: go1.21rc1~1245
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=964985362b4d8702a16bce08c7a825488ccb9601;p=gostls13.git

syscall: let errors.ErrUnsupported match ERROR_NOT_SUPPORTED and ERROR_CALL_NOT_IMPLEMENTED

These error codes are returned on windows in case a particular functions
is not supported.

Updates #41198

Change-Id: Ic31755a131d4e7c96961ba54f5bb51026fc7a563
Reviewed-on: https://go-review.googlesource.com/c/go/+/476916
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
---

diff --git a/src/syscall/syscall_windows.go b/src/syscall/syscall_windows.go
index fe052d7e72..9f660c1f52 100644
--- a/src/syscall/syscall_windows.go
+++ b/src/syscall/syscall_windows.go
@@ -142,7 +142,11 @@ func (e Errno) Error() string {
 	return string(utf16.Decode(b[:n]))
 }
 
-const _ERROR_BAD_NETPATH = Errno(53)
+const (
+	_ERROR_NOT_SUPPORTED        = Errno(50)
+	_ERROR_BAD_NETPATH          = Errno(53)
+	_ERROR_CALL_NOT_IMPLEMENTED = Errno(120)
+)
 
 func (e Errno) Is(target error) bool {
 	switch target {
@@ -162,7 +166,9 @@ func (e Errno) Is(target error) bool {
 			e == ERROR_PATH_NOT_FOUND ||
 			e == ENOENT
 	case errorspkg.ErrUnsupported:
-		return e == ENOSYS ||
+		return e == _ERROR_NOT_SUPPORTED ||
+			e == _ERROR_CALL_NOT_IMPLEMENTED ||
+			e == ENOSYS ||
 			e == ENOTSUP ||
 			e == EOPNOTSUPP ||
 			e == EWINDOWS