mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-14 07:10:05 +00:00
2b778ceb40
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/* Encrypting Passwords
|
|
Copyright (C) 1991-2021 Free Software Foundation, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <crypt.h>
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
unsigned char ubytes[16];
|
|
char salt[20];
|
|
const char *const saltchars =
|
|
"./0123456789ABCDEFGHIJKLMNOPQRST"
|
|
"UVWXYZabcdefghijklmnopqrstuvwxyz";
|
|
char *hash;
|
|
int i;
|
|
|
|
/* Retrieve 16 unpredictable bytes from the operating system. */
|
|
if (getentropy (ubytes, sizeof ubytes))
|
|
{
|
|
perror ("getentropy");
|
|
return 1;
|
|
}
|
|
|
|
/* Use them to fill in the salt string. */
|
|
salt[0] = '$';
|
|
salt[1] = '5'; /* SHA-256 */
|
|
salt[2] = '$';
|
|
for (i = 0; i < 16; i++)
|
|
salt[3+i] = saltchars[ubytes[i] & 0x3f];
|
|
salt[3+i] = '\0';
|
|
|
|
/* Read in the user's passphrase and hash it. */
|
|
hash = crypt (getpass ("Enter new passphrase: "), salt);
|
|
if (!hash || hash[0] == '*')
|
|
{
|
|
perror ("crypt");
|
|
return 1;
|
|
}
|
|
|
|
/* Print the results. */
|
|
puts (hash);
|
|
return 0;
|
|
}
|