ticket.c
3.62 KB
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/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
This program 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.
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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this program; 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/mutil.h>
#include <auth0.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_create (ticket_t *pticket, void *owner)
{
ticket_t ticket;
if (pticket == NULL)
return EINVAL;
ticket = calloc (1, sizeof (*ticket));
if (ticket == NULL)
return ENOMEM;
ticket->owner = owner;
*pticket = ticket;
return 0;
}
void
ticket_destroy (ticket_t *pticket, void *owner)
{
if (pticket && *pticket)
{
ticket_t ticket = *pticket;
if (ticket->owner == owner)
{
if (ticket->_destroy)
ticket->_destroy (ticket);
if (ticket->challenge)
free (ticket->challenge);
free (ticket);
}
*pticket = NULL;
}
}
int
ticket_set_destroy (ticket_t ticket, void (*_destroy) __P ((ticket_t)),
void *owner)
{
if (ticket == NULL)
return EINVAL;
if (ticket->owner != owner)
return EACCES;
ticket->_destroy = _destroy;
return 0;
}
void *
ticket_get_owner (ticket_t ticket)
{
return (ticket) ? ticket->owner : NULL;
}
int
ticket_set_pop (ticket_t ticket,
int (*_pop) __P ((ticket_t, url_t, const char *, char **)),
void *owner)
{
if (ticket == NULL)
return EINVAL;
if (ticket->owner != owner)
return EACCES;
ticket->_pop = _pop;
return 0;
}
int
ticket_pop (ticket_t ticket, url_t url, const char *challenge, char **parg)
{
if (ticket == NULL || parg == NULL)
return EINVAL;
if (ticket->_pop)
return ticket->_pop (ticket, url, challenge, parg);
else
{
char arg[256];
struct termios stored_settings;
int echo = 1;
/* Being smart if we see "Passwd" and turning off echo. */
if (strstr (challenge, "ass") != NULL
|| strstr (challenge, "ASS") != NULL)
echo = 0;
printf ("%s", challenge);
fflush (stdout);
if (!echo)
echo_off (&stored_settings);
fgets (arg, sizeof (arg), stdin);
if (!echo)
{
echo_on (&stored_settings);
putchar ('\n');
fflush (stdout);
}
arg [strlen (arg) - 1] = '\0'; /* nuke the trailing line. */
*parg = strdup (arg);
}
return 0;
}
int
ticket_get_data (ticket_t ticket, void **data)
{
if (ticket == NULL || data == NULL)
return EINVAL;
*data = ticket->data;
return 0;
}
int
ticket_set_data (ticket_t ticket, void *data, void *owner)
{
if (ticket == NULL)
return EINVAL;
if (ticket->owner != owner)
return EACCES;
ticket->data = data;
return 0;
}