func toLong(path string) (string, error) {
p := syscall.StringToUTF16(path)
b := p // GetLongPathName says we can reuse buffer
n, err := syscall.GetLongPathName(&p[0], &b[0], uint32(len(b)))
if err != nil {
return "", err
}
if n > uint32(len(b)) {
b = make([]uint16, n)
n, err = syscall.GetLongPathName(&p[0], &b[0], uint32(len(b)))
if err != nil {
return "", err
}
}
b = b[:n]
return syscall.UTF16ToString(b), nil
}
// longPath is copied over from the symlink package. This should be removed
// if we add it to gc or in some other convenience package
func longPath(path string) ([]uint16, error) {
pathp, err := syscall.UTF16FromString(path)
if err != nil {
return nil, err
}
longp := pathp
n, err := syscall.GetLongPathName(&pathp[0], &longp[0], uint32(len(longp)))
if err != nil {
return nil, err
}
if n > uint32(len(longp)) {
longp = make([]uint16, n)
n, err = syscall.GetLongPathName(&pathp[0], &longp[0], uint32(len(longp)))
if err != nil {
return nil, err
}
}
longp = longp[:n]
return longp, nil
}
func toLong(path string) (string, error) {
p, err := syscall.UTF16FromString(path)
if err != nil {
return "", err
}
b := p // GetLongPathName says we can reuse buffer
n := uint32(len(b))
for {
n, err = syscall.GetLongPathName(&p[0], &b[0], uint32(len(b)))
if err != nil {
return "", err
}
if n <= uint32(len(b)) {
return syscall.UTF16ToString(b[:n]), nil
}
b = make([]uint16, n)
}
}