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make grub_password_get work in userland

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-04-22 21:46:00 +02:00
parent 84a411c0c3
commit 2cb55e6f73
2 changed files with 53 additions and 67 deletions
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44
grub-core/lib/crypto.c
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@ -23,6 +23,13 @@
#include <grub/term.h>
#include <grub/dl.h>
#ifdef GRUB_UTIL
#include <termios.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#endif
GRUB_MOD_LICENSE ("GPLv3+");
struct grub_crypto_hmac_handle
@ -414,10 +421,43 @@ grub_crypto_memcmp (const void *a, const void *b, grub_size_t n)
return !!counter;
}
#ifndef GRUB_MKPASSWD
int
grub_password_get (char buf[], unsigned buf_size)
{
#ifdef GRUB_UTIL
FILE *in;
struct termios s, t;
int tty_changed = 0;
char *ptr;
/* 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;
fgets (buf, buf_size, stdin);
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 ();
return 1;
#else
unsigned cur_len = 0;
int key;
@ -452,5 +492,5 @@ grub_password_get (char buf[], unsigned buf_size)
grub_refresh ();
return (key != '\e');
}
#endif
}