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syscall: implement chmod() for win32.

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R=golang-dev, rsc, brainman
CC=golang-dev
https://golang.org/cl/4175049
This commit is contained in:
Yasuhiro Matsumoto 2011-02-16 16:24:59 +11:00 committed by Alex Brainman
parent 074354c2ea
commit a54cbcec88
3 changed files with 42 additions and 5 deletions
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31
src/pkg/syscall/syscall_windows.go
View File

@ -154,6 +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 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]
@ -718,11 +719,31 @@ func Fchdir(fd int) (errno int) { return EWINDOWS }
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) { return EWINDOWS }
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 }
func Fchown(fd int, uid int, gid int) (errno int) { return 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 }
func Fchown(fd int, uid int, gid int) (errno int) { return EWINDOWS }
func Getuid() (uid int) { return -1 }
func Geteuid() (euid int) { return -1 }

15
src/pkg/syscall/zsyscall_windows_386.go
View File

@ -63,6 +63,7 @@ var (
procSetEnvironmentVariableW = getSysProcAddr(modkernel32, "SetEnvironmentVariableW")
procSetFileTime = getSysProcAddr(modkernel32, "SetFileTime")
procGetFileAttributesW = getSysProcAddr(modkernel32, "GetFileAttributesW")
procSetFileAttributesW = getSysProcAddr(modkernel32, "SetFileAttributesW")
procGetCommandLineW = getSysProcAddr(modkernel32, "GetCommandLineW")
procCommandLineToArgvW = getSysProcAddr(modshell32, "CommandLineToArgvW")
procLocalFree = getSysProcAddr(modkernel32, "LocalFree")
@ -806,6 +807,20 @@ func GetFileAttributes(name *uint16) (attrs uint32, errno int) {
return
}
func SetFileAttributes(name *uint16, attrs uint32) (errno int) {
r0, _, e1 := Syscall(procSetFileAttributesW, 2, uintptr(unsafe.Pointer(name)), uintptr(attrs), 0)
if int(r0) == 0 {
if e1 != 0 {
errno = int(e1)
} else {
errno = EINVAL
}
} else {
errno = 0
}
return
}
func GetCommandLine() (cmd *uint16) {
r0, _, _ := Syscall(procGetCommandLineW, 0, 0, 0, 0)
cmd = (*uint16)(unsafe.Pointer(r0))

1
src/pkg/syscall/ztypes_windows_386.go
View File

@ -380,6 +380,7 @@ const (
S_ISGID = 0x400
S_ISVTX = 0x200
S_IRUSR = 0x100
S_IWRITE = 0x80
S_IWUSR = 0x80
S_IXUSR = 0x40
)