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85 lines
2.4 KiB
Lua
85 lines
2.4 KiB
Lua
--
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-- Copyright (c) 2015 Pedro Souza <pedrosouza@freebsd.org>
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-- All rights reserved.
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--
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-- Redistribution and use in source and binary forms, with or without
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-- modification, are permitted provided that the following conditions
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-- are met:
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-- 1. Redistributions of source code must retain the above copyright
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-- notice, this list of conditions and the following disclaimer.
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-- 2. Redistributions in binary form must reproduce the above copyright
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-- notice, this list of conditions and the following disclaimer in the
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-- documentation and/or other materials provided with the distribution.
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--
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-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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-- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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-- ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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-- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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-- LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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-- OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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-- SUCH DAMAGE.
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--
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-- $FreeBSD$
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--
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local password = {};
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local core = require("core");
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local screen = require("screen");
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function password.read()
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local str = "";
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local n = 0;
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repeat
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ch = io.getchar();
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if ch == core.KEY_ENTER then
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break;
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end
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if (ch == core.KEY_BACKSPACE) or (ch == core.KEY_DELETE) then
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if n > 0 then
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n = n - 1;
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-- loader.printc("\008 \008");
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str = string.sub(str, 1, n);
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end
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else
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-- loader.printc("*");
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str = str .. string.char(ch);
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n = n + 1;
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end
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until n == 16
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return str;
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end
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function password.check()
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screen.defcursor();
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local function compare(prompt, pwd)
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if (pwd == nil) then
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return;
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end
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while true do
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loader.printc(prompt);
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if (pwd == password.read()) then
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break;
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end
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print("\n\nloader: incorrect password!\n");
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loader.delay(3*1000*1000);
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end
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end
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local boot_pwd = loader.getenv("bootlock_password");
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compare("Boot password: ", boot_pwd);
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local pwd = loader.getenv("password");
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if (pwd ~=nil) then
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core.autoboot();
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end
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compare("Password: ", pwd);
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end
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return password
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