ladybird/Userland/Libraries/LibCore/GetPassword.cpp
Brian Gianforcaro 1682f0b760 Everything: Move to SPDX license identifiers in all files.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.

See: https://spdx.dev/resources/use/#identifiers

This was done with the `ambr` search and replace tool.

 ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:22:27 +02:00

52 lines
1.2 KiB
C++

/*
* Copyright (c) 2020, Peter Elliott <pelliott@ualberta.ca>
* 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 {
Result<String, OSError> get_password(const StringView& prompt)
{
if (write(STDOUT_FILENO, prompt.characters_without_null_termination(), prompt.length()) < 0)
return OSError(errno);
termios original {};
if (tcgetattr(STDIN_FILENO, &original) < 0)
return OSError(errno);
termios no_echo = original;
no_echo.c_lflag &= ~ECHO;
if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &no_echo) < 0)
return OSError(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 OSError(saved_errno);
VERIFY(line_length != 0);
// Remove trailing '\n' read by getline().
password[line_length - 1] = '\0';
String s(password);
free(password);
return s;
}
}