windows: add SetFileInformationByHandle
We already have GetFileInformationByHandle, so this adds the
corresponding SetFileInformationByHandle, which has a nearly identical
function signature to GetFileInformationByHandleEx, which is
convenient.
We also add the enum for the various classes of data.
Reference: https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-setfileinformationbyhandle
Change-Id: I3d3e8b99e616b512df4d57c8c521e14294c93a6d
Reviewed-on: https://go-review.googlesource.com/c/sys/+/270757
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Trust: Brad Fitzpatrick <bradfitz@golang.org>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
diff --git a/windows/syscall_windows.go b/windows/syscall_windows.go
index c79ffb7..86a46f7 100644
--- a/windows/syscall_windows.go
+++ b/windows/syscall_windows.go
@@ -188,6 +188,7 @@
//sys FindClose(handle Handle) (err error)
//sys GetFileInformationByHandle(handle Handle, data *ByHandleFileInformation) (err error)
//sys GetFileInformationByHandleEx(handle Handle, class uint32, outBuffer *byte, outBufferLen uint32) (err error)
+//sys SetFileInformationByHandle(handle Handle, class uint32, inBuffer *byte, inBufferLen uint32) (err error)
//sys GetCurrentDirectory(buflen uint32, buf *uint16) (n uint32, err error) = GetCurrentDirectoryW
//sys SetCurrentDirectory(path *uint16) (err error) = SetCurrentDirectoryW
//sys CreateDirectory(path *uint16, sa *SecurityAttributes) (err error) = CreateDirectoryW
diff --git a/windows/types_windows.go b/windows/types_windows.go
index da1652e..e7ae37f 100644
--- a/windows/types_windows.go
+++ b/windows/types_windows.go
@@ -1772,3 +1772,32 @@
MUI_LANGUAGE_INSTALLED = 0x20
MUI_LANGUAGE_LICENSED = 0x40
)
+
+// FILE_INFO_BY_HANDLE_CLASS constants for SetFileInformationByHandle/GetFileInformationByHandleEx
+const (
+ FileBasicInfo = 0
+ FileStandardInfo = 1
+ FileNameInfo = 2
+ FileRenameInfo = 3
+ FileDispositionInfo = 4
+ FileAllocationInfo = 5
+ FileEndOfFileInfo = 6
+ FileStreamInfo = 7
+ FileCompressionInfo = 8
+ FileAttributeTagInfo = 9
+ FileIdBothDirectoryInfo = 10
+ FileIdBothDirectoryRestartInfo = 11
+ FileIoPriorityHintInfo = 12
+ FileRemoteProtocolInfo = 13
+ FileFullDirectoryInfo = 14
+ FileFullDirectoryRestartInfo = 15
+ FileStorageInfo = 16
+ FileAlignmentInfo = 17
+ FileIdInfo = 18
+ FileIdExtdDirectoryInfo = 19
+ FileIdExtdDirectoryRestartInfo = 20
+ FileDispositionInfoEx = 21
+ FileRenameInfoEx = 22
+ FileCaseSensitiveInfo = 23
+ FileNormalizedNameInfo = 24
+)
diff --git a/windows/zsyscall_windows.go b/windows/zsyscall_windows.go
index 93d96da..8fbef7d 100644
--- a/windows/zsyscall_windows.go
+++ b/windows/zsyscall_windows.go
@@ -285,6 +285,7 @@
procSetEvent = modkernel32.NewProc("SetEvent")
procSetFileAttributesW = modkernel32.NewProc("SetFileAttributesW")
procSetFileCompletionNotificationModes = modkernel32.NewProc("SetFileCompletionNotificationModes")
+ procSetFileInformationByHandle = modkernel32.NewProc("SetFileInformationByHandle")
procSetFilePointer = modkernel32.NewProc("SetFilePointer")
procSetFileTime = modkernel32.NewProc("SetFileTime")
procSetHandleInformation = modkernel32.NewProc("SetHandleInformation")
@@ -2411,6 +2412,14 @@
return
}
+func SetFileInformationByHandle(handle Handle, class uint32, inBuffer *byte, inBufferLen uint32) (err error) {
+ r1, _, e1 := syscall.Syscall6(procSetFileInformationByHandle.Addr(), 4, uintptr(handle), uintptr(class), uintptr(unsafe.Pointer(inBuffer)), uintptr(inBufferLen), 0, 0)
+ if r1 == 0 {
+ err = errnoErr(e1)
+ }
+ return
+}
+
func SetFilePointer(handle Handle, lowoffset int32, highoffsetptr *int32, whence uint32) (newlowoffset uint32, err error) {
r0, _, e1 := syscall.Syscall6(procSetFilePointer.Addr(), 4, uintptr(handle), uintptr(lowoffset), uintptr(unsafe.Pointer(highoffsetptr)), uintptr(whence), 0, 0)
newlowoffset = uint32(r0)
