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