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/*
* Copyright (c) 2020, Peter Elliott <pelliott@serenityos.org>
* Copyright (c) 2021, Emanuele Torre <torreemanuele6@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/GetPassword.h>
#include <stdio.h>
#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
namespace Core {
ErrorOr<SecretString> get_password(StringView prompt)
{
if (write(STDOUT_FILENO, prompt.characters_without_null_termination(), prompt.length()) < 0)
return Error::from_errno(errno);
termios original {};
if (tcgetattr(STDIN_FILENO, &original) < 0)
return Error::from_errno(errno);
termios no_echo = original;
no_echo.c_lflag &= ~ECHO;
if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &no_echo) < 0)
return Error::from_errno(errno);
char* password = nullptr;
size_t n = 0;
auto line_length = getline(&password, &n, stdin);
auto saved_errno = errno;
tcsetattr(STDIN_FILENO, TCSAFLUSH, &original);
putchar('\n');
if (line_length < 0)
return Error::from_errno(saved_errno);
VERIFY(line_length != 0);
// Remove trailing '\n' read by getline().
password[line_length - 1] = '\0';
return SecretString::take_ownership(password, line_length);
}
}
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