mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 08:40:07 +00:00
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/* Encrypting Passwords
|
|
Copyright (C) 1991-2015 Free Software Foundation, Inc.
|
|
|
|
This program 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 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program 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 this program; if not, if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
#include <crypt.h>
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
unsigned long seed[2];
|
|
char salt[] = "$1$........";
|
|
const char *const seedchars =
|
|
"./0123456789ABCDEFGHIJKLMNOPQRST"
|
|
"UVWXYZabcdefghijklmnopqrstuvwxyz";
|
|
char *password;
|
|
int i;
|
|
|
|
/* Generate a (not very) random seed.
|
|
You should do it better than this... */
|
|
seed[0] = time(NULL);
|
|
seed[1] = getpid() ^ (seed[0] >> 14 & 0x30000);
|
|
|
|
/* Turn it into printable characters from `seedchars'. */
|
|
for (i = 0; i < 8; i++)
|
|
salt[3+i] = seedchars[(seed[i/5] >> (i%5)*6) & 0x3f];
|
|
|
|
/* Read in the user's password and encrypt it. */
|
|
password = crypt(getpass("Password:"), salt);
|
|
|
|
/* Print the results. */
|
|
puts(password);
|
|
return 0;
|
|
}
|