v / vlib / os
Raw file | 26 loc (19 sloc) | 715 bytes | Latest commit hash 3b42f18de 


1module os


2


3#include <windows.h>


4


5// input_password prompts the user for a password-like secret. It disables


6// the terminal echo during user input and resets it back to normal when done.


7pub fn input_password(prompt string) !string {


8    if is_atty(1) <= 0 || getenv('TERM') == 'dumb' {


9        return error('Could not obtain password discretely.')


10    }


11


12    std_handle := C.GetStdHandle(C.STD_INPUT_HANDLE)


13    mut mode := u32(0)


14


15    unsafe { C.GetConsoleMode(std_handle, &mode) }


16    unsafe { C.SetConsoleMode(std_handle, mode & (~u32(C.ENABLE_ECHO_INPUT))) }


17


18    defer {


19        unsafe { C.SetConsoleMode(std_handle, &mode) }


20        println('')


21    }


22


23    password := input_opt(prompt) or { return error('Failed to read password') }


24


25    return password


26}