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      1 // MACHINE GENERATED BY 'go generate' COMMAND; DO NOT EDIT
      2 
      3 package registry
      4 
      5 import (
      6 	"internal/syscall/windows/sysdll"
      7 	"syscall"
      8 	"unsafe"
      9 )
     10 
     11 var _ unsafe.Pointer
     12 
     13 // Do the interface allocations only once for common
     14 // Errno values.
     15 const (
     16 	errnoERROR_IO_PENDING = 997
     17 )
     18 
     19 var (
     20 	errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
     21 )
     22 
     23 // errnoErr returns common boxed Errno values, to prevent
     24 // allocations at runtime.
     25 func errnoErr(e syscall.Errno) error {
     26 	switch e {
     27 	case 0:
     28 		return nil
     29 	case errnoERROR_IO_PENDING:
     30 		return errERROR_IO_PENDING
     31 	}
     32 	// TODO: add more here, after collecting data on the common
     33 	// error values see on Windows. (perhaps when running
     34 	// all.bat?)
     35 	return e
     36 }
     37 
     38 var (
     39 	modadvapi32 = syscall.NewLazyDLL(sysdll.Add("advapi32.dll"))
     40 	modkernel32 = syscall.NewLazyDLL(sysdll.Add("kernel32.dll"))
     41 
     42 	procRegCreateKeyExW           = modadvapi32.NewProc("RegCreateKeyExW")
     43 	procRegDeleteKeyW             = modadvapi32.NewProc("RegDeleteKeyW")
     44 	procRegSetValueExW            = modadvapi32.NewProc("RegSetValueExW")
     45 	procRegEnumValueW             = modadvapi32.NewProc("RegEnumValueW")
     46 	procRegDeleteValueW           = modadvapi32.NewProc("RegDeleteValueW")
     47 	procRegLoadMUIStringW         = modadvapi32.NewProc("RegLoadMUIStringW")
     48 	procExpandEnvironmentStringsW = modkernel32.NewProc("ExpandEnvironmentStringsW")
     49 )
     50 
     51 func regCreateKeyEx(key syscall.Handle, subkey *uint16, reserved uint32, class *uint16, options uint32, desired uint32, sa *syscall.SecurityAttributes, result *syscall.Handle, disposition *uint32) (regerrno error) {
     52 	r0, _, _ := syscall.Syscall9(procRegCreateKeyExW.Addr(), 9, uintptr(key), uintptr(unsafe.Pointer(subkey)), uintptr(reserved), uintptr(unsafe.Pointer(class)), uintptr(options), uintptr(desired), uintptr(unsafe.Pointer(sa)), uintptr(unsafe.Pointer(result)), uintptr(unsafe.Pointer(disposition)))
     53 	if r0 != 0 {
     54 		regerrno = syscall.Errno(r0)
     55 	}
     56 	return
     57 }
     58 
     59 func regDeleteKey(key syscall.Handle, subkey *uint16) (regerrno error) {
     60 	r0, _, _ := syscall.Syscall(procRegDeleteKeyW.Addr(), 2, uintptr(key), uintptr(unsafe.Pointer(subkey)), 0)
     61 	if r0 != 0 {
     62 		regerrno = syscall.Errno(r0)
     63 	}
     64 	return
     65 }
     66 
     67 func regSetValueEx(key syscall.Handle, valueName *uint16, reserved uint32, vtype uint32, buf *byte, bufsize uint32) (regerrno error) {
     68 	r0, _, _ := syscall.Syscall6(procRegSetValueExW.Addr(), 6, uintptr(key), uintptr(unsafe.Pointer(valueName)), uintptr(reserved), uintptr(vtype), uintptr(unsafe.Pointer(buf)), uintptr(bufsize))
     69 	if r0 != 0 {
     70 		regerrno = syscall.Errno(r0)
     71 	}
     72 	return
     73 }
     74 
     75 func regEnumValue(key syscall.Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) {
     76 	r0, _, _ := syscall.Syscall9(procRegEnumValueW.Addr(), 8, uintptr(key), uintptr(index), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(nameLen)), uintptr(unsafe.Pointer(reserved)), uintptr(unsafe.Pointer(valtype)), uintptr(unsafe.Pointer(buf)), uintptr(unsafe.Pointer(buflen)), 0)
     77 	if r0 != 0 {
     78 		regerrno = syscall.Errno(r0)
     79 	}
     80 	return
     81 }
     82 
     83 func regDeleteValue(key syscall.Handle, name *uint16) (regerrno error) {
     84 	r0, _, _ := syscall.Syscall(procRegDeleteValueW.Addr(), 2, uintptr(key), uintptr(unsafe.Pointer(name)), 0)
     85 	if r0 != 0 {
     86 		regerrno = syscall.Errno(r0)
     87 	}
     88 	return
     89 }
     90 
     91 func regLoadMUIString(key syscall.Handle, name *uint16, buf *uint16, buflen uint32, buflenCopied *uint32, flags uint32, dir *uint16) (regerrno error) {
     92 	r0, _, _ := syscall.Syscall9(procRegLoadMUIStringW.Addr(), 7, uintptr(key), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(buf)), uintptr(buflen), uintptr(unsafe.Pointer(buflenCopied)), uintptr(flags), uintptr(unsafe.Pointer(dir)), 0, 0)
     93 	if r0 != 0 {
     94 		regerrno = syscall.Errno(r0)
     95 	}
     96 	return
     97 }
     98 
     99 func expandEnvironmentStrings(src *uint16, dst *uint16, size uint32) (n uint32, err error) {
    100 	r0, _, e1 := syscall.Syscall(procExpandEnvironmentStringsW.Addr(), 3, uintptr(unsafe.Pointer(src)), uintptr(unsafe.Pointer(dst)), uintptr(size))
    101 	n = uint32(r0)
    102 	if n == 0 {
    103 		if e1 != 0 {
    104 			err = errnoErr(e1)
    105 		} else {
    106 			err = syscall.EINVAL
    107 		}
    108 	}
    109 	return
    110 }
    111