source: code/trunk/vendor/github.com/lib/pq/user_windows.go@ 822

// Package pq is a pure Go Postgres driver for the database/sql package.
package pq

import (
        "path/filepath"
        "syscall"
)

// Perform Windows user name lookup identically to libpq.
//
// The PostgreSQL code makes use of the legacy Win32 function
// GetUserName, and that function has not been imported into stock Go.
// GetUserNameEx is available though, the difference being that a
// wider range of names are available.  To get the output to be the
// same as GetUserName, only the base (or last) component of the
// result is returned.
func userCurrent() (string, error) {
        pw_name := make([]uint16, 128)
        pwname_size := uint32(len(pw_name)) - 1
        err := syscall.GetUserNameEx(syscall.NameSamCompatible, &pw_name[0], &pwname_size)
        if err != nil {
                return "", ErrCouldNotDetectUsername
        }
        s := syscall.UTF16ToString(pw_name)
        u := filepath.Base(s)
        return u, nil
}