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syscall: fix windows SetFileAttributes

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R=golang-dev, rsc, hector
CC=golang-dev, mattn
https://golang.org/cl/4180052
This commit is contained in:
Alex Brainman 2011-02-17 12:09:12 +11:00
parent 6cf98a4553
commit 946cdf82bc
2 changed files with 20 additions and 23 deletions
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39
src/pkg/syscall/syscall_windows.go
View File

@ -154,7 +154,7 @@ func NewCallback(fn interface{}) uintptr
//sys SetEnvironmentVariable(name *uint16, value *uint16) (errno int) = kernel32.SetEnvironmentVariableW
//sys SetFileTime(handle int32, ctime *Filetime, atime *Filetime, wtime *Filetime) (errno int)
//sys GetFileAttributes(name *uint16) (attrs uint32, errno int) [failretval==INVALID_FILE_ATTRIBUTES] = kernel32.GetFileAttributesW
//sys SetFileAttributes(name *uint16, attrs uint32) (errno int) [failretval==INVALID_FILE_ATTRIBUTES] = kernel32.SetFileAttributesW
//sys SetFileAttributes(name *uint16, attrs uint32) (errno int) = kernel32.SetFileAttributesW
//sys GetCommandLine() (cmd *uint16) = kernel32.GetCommandLineW
//sys CommandLineToArgv(cmd *uint16, argc *int32) (argv *[8192]*[8192]uint16, errno int) [failretval==nil] = shell32.CommandLineToArgvW
//sys LocalFree(hmem uint32) (handle uint32, errno int) [failretval!=0]
@ -471,6 +471,23 @@ func Fsync(fd int) (errno int) {
return FlushFileBuffers(int32(fd))
}
func Chmod(path string, mode uint32) (errno int) {
if mode == 0 {
return EINVAL
}
p := StringToUTF16Ptr(path)
attrs, e := GetFileAttributes(p)
if e != 0 {
return e
}
if mode&S_IWRITE != 0 {
attrs &^= FILE_ATTRIBUTE_READONLY
} else {
attrs |= FILE_ATTRIBUTE_READONLY
}
return SetFileAttributes(p, attrs)
}
// net api calls
//sys WSAStartup(verreq uint32, data *WSAData) (sockerrno int) = wsock32.WSAStartup
@ -731,26 +748,6 @@ func Link(oldpath, newpath string) (errno int) { return EWINDOWS }
func Symlink(path, link string) (errno int) { return EWINDOWS }
func Readlink(path string, buf []byte) (n int, errno int) { return 0, EWINDOWS }
func Chmod(path string, mode uint32) (errno int) {
attrs, errno := GetFileAttributes(StringToUTF16Ptr(path))
if errno != 0 {
return
}
if mode == 0 {
return EINVAL
}
if mode&S_IWRITE != 0 {
attrs &^= FILE_ATTRIBUTE_READONLY
} else if attrs&FILE_ATTRIBUTE_READONLY == 0 {
attrs |= FILE_ATTRIBUTE_READONLY
}
errno = SetFileAttributes(StringToUTF16Ptr(path), attrs)
return
}
func Fchmod(fd int, mode uint32) (errno int) { return EWINDOWS }
func Chown(path string, uid int, gid int) (errno int) { return EWINDOWS }
func Lchown(path string, uid int, gid int) (errno int) { return EWINDOWS }

4
src/pkg/syscall/zsyscall_windows_386.go
View File

@ -808,8 +808,8 @@ func GetFileAttributes(name *uint16) (attrs uint32, errno int) {
}
func SetFileAttributes(name *uint16, attrs uint32) (errno int) {
r0, _, e1 := Syscall(procSetFileAttributesW, 2, uintptr(unsafe.Pointer(name)), uintptr(attrs), 0)
if int(r0) == 0 {
r1, _, e1 := Syscall(procSetFileAttributesW, 2, uintptr(unsafe.Pointer(name)), uintptr(attrs), 0)
if int(r1) == 0 {
if e1 != 0 {
errno = int(e1)
} else {