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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
GNU Mailutils is free software; you can redistribute it and/or modify
it under the terms of the GNU General Library Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Mailutils 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with GNU Mailutils; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <errno.h>
#include <sys/types.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <termios.h>
#include <mailutils/error.h>
#include <mailutils/refcount.h>
#include <mailutils/sys/pticket.h>
static void
echo_off(struct termios *stored_settings)
{
struct termios new_settings;
tcgetattr (0, stored_settings);
new_settings = *stored_settings;
new_settings.c_lflag &= (~ECHO);
tcsetattr (0, TCSANOW, &new_settings);
}
static void
echo_on(struct termios *stored_settings)
{
tcsetattr (0, TCSANOW, stored_settings);
}
int
_ticket_prompt_ref (ticket_t ticket)
{
struct _ticket_prompt *prompt = (struct _ticket_prompt *)ticket;
return mu_refcount_inc (prompt->refcount);
}
void
_ticket_prompt_destroy (ticket_t *pticket)
{
struct _ticket_prompt *prompt = (struct _ticket_prompt *)*pticket;
if (mu_refcount_dec (prompt->refcount) == 0)
{
mu_refcount_destroy (&prompt->refcount);
free (prompt);
}
}
int
_ticket_prompt_pop (ticket_t ticket, const char *challenge, char **parg)
{
char arg[256];
struct termios stored_settings;
int echo = 1;
(void)ticket;
/* Being smart if we see "Passwd" and turning off echo. */
if (strstr (challenge, "ass") != NULL
|| strstr (challenge, "ASS") != NULL)
echo = 0;
fprintf (stdout, "%s", challenge);
fflush (stdout);
if (!echo)
echo_off (&stored_settings);
fgets (arg, sizeof (arg), stdin);
if (!echo)
{
echo_on (&stored_settings);
fputc ('\n', stdout);
fflush (stdout);
}
arg [strlen (arg) - 1] = '\0'; /* nuke the trailing line. */
*parg = strdup (arg);
return 0;
}
static struct _ticket_vtable _ticket_prompt_vtable =
{
_ticket_prompt_ref,
_ticket_prompt_destroy,
_ticket_prompt_pop,
};
int
_ticket_prompt_ctor (struct _ticket_prompt *prompt)
{
mu_refcount_create (&prompt->refcount);
if (prompt->refcount == NULL)
return MU_ERROR_NO_MEMORY;
prompt->base.vtable = &_ticket_prompt_vtable;
return 0;
}
void
_ticket_prompt_dtor (ticket_t ticket)
{
struct _ticket_prompt *prompt = (struct _ticket_prompt *)ticket;
if (prompt)
mu_refcount_destroy (&prompt->refcount);
}
int
ticket_prompt_create (ticket_t *pticket)
{
struct _ticket_prompt *prompt;
int status;
if (pticket == NULL)
return MU_ERROR_INVALID_PARAMETER;
prompt = calloc (1, sizeof *prompt);
if (prompt == NULL)
return MU_ERROR_NO_MEMORY;
status = _ticket_prompt_ctor (prompt);
if (status != 0)
{
free (prompt);
return status;
}
*pticket = &prompt->base;
return 0;
}
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