76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006
|
|
* 2007, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
|
|
*
|
|
* GRUB is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GRUB is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <grub/crypto.h>
|
|
#include <grub/mm.h>
|
|
#include <grub/term.h>
|
|
|
|
#include <termios.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
|
|
int
|
|
grub_password_get (char buf[], unsigned buf_size)
|
|
{
|
|
FILE *in;
|
|
struct termios s, t;
|
|
int tty_changed = 0;
|
|
char *ptr;
|
|
|
|
grub_refresh ();
|
|
|
|
/* Disable echoing. Based on glibc. */
|
|
in = fopen ("/dev/tty", "w+c");
|
|
if (in == NULL)
|
|
in = stdin;
|
|
|
|
if (tcgetattr (fileno (in), &t) == 0)
|
|
{
|
|
/* Save the old one. */
|
|
s = t;
|
|
/* Tricky, tricky. */
|
|
t.c_lflag &= ~(ECHO|ISIG);
|
|
tty_changed = (tcsetattr (fileno (in), TCSAFLUSH, &t) == 0);
|
|
}
|
|
else
|
|
tty_changed = 0;
|
|
grub_memset (buf, 0, buf_size);
|
|
if (!fgets (buf, buf_size, stdin))
|
|
{
|
|
if (in != stdin)
|
|
fclose (in);
|
|
return 0;
|
|
}
|
|
ptr = buf + strlen (buf) - 1;
|
|
while (buf <= ptr && (*ptr == '\n' || *ptr == '\r'))
|
|
*ptr-- = 0;
|
|
/* Restore the original setting. */
|
|
if (tty_changed)
|
|
(void) tcsetattr (fileno (in), TCSAFLUSH, &s);
|
|
|
|
grub_xputs ("\n");
|
|
grub_refresh ();
|
|
|
|
if (in != stdin)
|
|
fclose (in);
|
|
|
|
return 1;
|
|
}
|