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/* card-util.c - Utility functions for the OpenPGP card.
* Copyright (C) 2003 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG 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.
*
* GnuPG 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include "gpg.h"
#include "util.h"
#include "i18n.h"
#include "options.h"
#include "main.h"
#include "call-agent.h"
/* Change the PIN of a an OpenPGP card. This is an interactive
function. */
void
change_pin (int chvno)
{
struct agent_card_info_s info;
int rc;
int reset_mode = 0;
rc = agent_learn (&info);
if (rc)
{
log_error (_("OpenPGP card not available: %s\n"),
gpg_strerror (rc));
return;
}
log_info (_("OpenPGP card no. %s detected\n"),
info.serialno? info.serialno : "[none]");
agent_release_card_info (&info);
if (opt.batch)
{
log_error (_("sorry, can't do this in batch mode\n"));
return;
}
for (;;)
{
char *answer;
int reread = 0;
tty_printf ("\n");
tty_printf ("1 - change signature PIN\n"
"2 - change decryption and authentication PIN\n"
"3 - change Admin's PIN\n"
"R - toggle reset retry counter mode\n"
"Q - quit\n");
tty_printf ("\n");
if (reset_mode)
{
tty_printf ("Reset Retry Counter mode active\n");
tty_printf ("\n");
}
answer = cpr_get("cardutil.change_pin.menu",_("Your selection? "));
cpr_kill_prompt();
if (strlen (answer) != 1)
continue;
rc = 0;
if (reset_mode && *answer == '3')
{
tty_printf ("Sorry, reset of the Admin PIN's retry counter "
"is not possible.\n");
}
else if (*answer == '1' || *answer == '2' || *answer == '3')
{
rc = agent_scd_change_pin (*answer - '0' + (reset_mode?100:0));
if (rc)
tty_printf ("Error changing/resetting the PIN: %s\n",
gpg_strerror (rc));
else
tty_printf ("New PIN successfully set.\n");
}
else if (*answer == 'r' || *answer == 'R')
{
reset_mode = !reset_mode;
}
else if (*answer == 'q' || *answer == 'Q')
{
break;
}
}
}
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