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/**
* libpassphrase – Personalisable library for TTY passphrase reading
*
* Copyright © 2013, 2014, 2015 Mattias Andrée (maandree@member.fsf.org)
*
* 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 3 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 <http://www.gnu.org/licenses/>.
*/
#include "passphrase.h"
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
/**
* Main test function
*
* @param argc Number of elements in `argv`
* @param argv Command line arguments
* @return Zero on success
*/
int main(int argc, char** argv)
{
/* Variables for the passphrase */
char* passphrase;
/* Get file descriptor to the terminal */
int fd = open("/dev/tty", O_RDONLY);
if (fd == -1)
{
perror(*argv);
return 1;
}
/* Hide the passphrase */
passphrase_disable_echo1(fd);
/* Do things needed before reading the passphrase */
printf("Passphrase: ");
fflush(stdout);
/* Read the passphrase */
passphrase = passphrase_read2(fd, PASSPHRASE_READ_NEW |
PASSPHRASE_READ_BELOW_FREE);
if (passphrase == NULL)
{
/* Something went wrong, print what and exit */
perror(*argv);
close(fd);
return 1;
}
/* Use the passphrase */
printf("You entered: %s\n", passphrase);
/* Wipe and free the passphrase */
passphrase_wipe1(passphrase);
free(passphrase);
/* Stop hiding user input */
passphrase_reenable_echo1(0);
/* End of program */
close(fd);
return 0;
/* `argc` was never used */
(void) argc;
}
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