commit 3518587229cd9a3c7e318c6313852a0095c38e41
author Meng Zhuo <mzh@golangcn.org> Wed Oct 28 14:35:39 2020 +0800
committer Meng Zhuo <mzh@golangcn.org> Thu Oct 29 02:06:03 2020 +0000
tree f425b7edae8249322ea257077a815a6111cafc99
parent c5abc1b1d397186b106fe10bd156adac799e8598

windows: add GetFinalPathNameByHandleW

https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-getfinalpathnamebyhandlew

Fixes #41686

Change-Id: I207676364a3abc8658498bcd060c8f9694161867
Reviewed-on: https://go-review.googlesource.com/c/sys/+/264577
Trust: Meng Zhuo <mzh@golangcn.org>
Run-TryBot: Meng Zhuo <mzh@golangcn.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

windows/syscall_windows.go

diff --git a/windows/syscall_windows.go b/windows/syscall_windows.go
index cd71f57..88cff4e 100644
--- a/windows/syscall_windows.go
+++ b/windows/syscall_windows.go
@@ -350,6 +350,7 @@
 //sys	getThreadPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetThreadPreferredUILanguages
 //sys	getUserPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetUserPreferredUILanguages
 //sys	getSystemPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetSystemPreferredUILanguages
+//sys   GetFinalPathNameByHandleW(file syscall.Handle, filePath *uint16, filePathSize uint32, flags uint32) (n uint32, err error) = kernel32.GetFinalPathNameByHandleW
 
 // Process Status API (PSAPI)
 //sys	EnumProcesses(processIds []uint32, bytesReturned *uint32) (err error) = psapi.EnumProcesses

windows/zsyscall_windows.go

diff --git a/windows/zsyscall_windows.go b/windows/zsyscall_windows.go
index f50d037..a1c801d 100644
--- a/windows/zsyscall_windows.go
+++ b/windows/zsyscall_windows.go
@@ -209,6 +209,7 @@
 	procGetFileInformationByHandle                           = modkernel32.NewProc("GetFileInformationByHandle")
 	procGetFileInformationByHandleEx                         = modkernel32.NewProc("GetFileInformationByHandleEx")
 	procGetFileType                                          = modkernel32.NewProc("GetFileType")
+	procGetFinalPathNameByHandleW                            = modkernel32.NewProc("GetFinalPathNameByHandleW")
 	procGetFullPathNameW                                     = modkernel32.NewProc("GetFullPathNameW")
 	procGetLastError                                         = modkernel32.NewProc("GetLastError")
 	procGetLogicalDriveStringsW                              = modkernel32.NewProc("GetLogicalDriveStringsW")
@@ -1717,6 +1718,15 @@
 	return
 }
 
+func GetFinalPathNameByHandleW(file syscall.Handle, filePath *uint16, filePathSize uint32, flags uint32) (n uint32, err error) {
+	r0, _, e1 := syscall.Syscall6(procGetFinalPathNameByHandleW.Addr(), 4, uintptr(file), uintptr(unsafe.Pointer(filePath)), uintptr(filePathSize), uintptr(flags), 0, 0)
+	n = uint32(r0)
+	if n == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func GetFullPathName(path *uint16, buflen uint32, buf *uint16, fname **uint16) (n uint32, err error) {
 	r0, _, e1 := syscall.Syscall6(procGetFullPathNameW.Addr(), 4, uintptr(unsafe.Pointer(path)), uintptr(buflen), uintptr(unsafe.Pointer(buf)), uintptr(unsafe.Pointer(fname)), 0, 0)
 	n = uint32(r0)