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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/*
* Copyright (C) 2000 Eazel, 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Authors: Ramiro Estrugo <ramiro@eazel.com>
*/
/* nautilus-authenticate-pam.c - Use PAM to authenticate a user.
*/
#include <config.h>
#include "nautilus-authenticate.h"
#include <security/pam_appl.h>
#include <security/pam_misc.h>
typedef struct _PamConvData
{
char *username;
char *password;
} PamConvData;
static int pam_conversion_func (int num_msg,
const struct pam_message **msg,
struct pam_response **response,
void *appdata_ptr)
{
PamConvData * pdata = (PamConvData *) appdata_ptr;
struct pam_response * reply =
(struct pam_response *) malloc (sizeof (struct pam_response) * num_msg);
g_assert (pdata);
g_assert (reply);
if (reply) {
int replies;
for (replies = 0; replies < num_msg; replies++) {
switch (msg[replies]->msg_style) {
case PAM_PROMPT_ECHO_ON:
reply[replies].resp_retcode = PAM_SUCCESS;
reply[replies].resp = strdup (pdata->username);
/* PAM frees resp */
break;
case PAM_PROMPT_ECHO_OFF:
reply[replies].resp_retcode = PAM_SUCCESS;
reply[replies].resp = strdup (pdata->password);
/* PAM frees resp */
break;
case PAM_TEXT_INFO:
/* nothing */
case PAM_ERROR_MSG:
/* Ignore */
reply[replies].resp_retcode = PAM_SUCCESS;
reply[replies].resp = NULL;
break;
default:
/* Huh? */
free (reply);
reply=NULL;
return PAM_CONV_ERR;
}
}
if (reply)
*response = reply;
return PAM_SUCCESS;
}
return PAM_CONV_ERR;
}
gboolean
nautilus_authenticate_authenticate(const char *username,
const char *password)
{
char * username_copy = g_strdup(username);
char * password_copy = g_strdup(password);
gboolean rv = FALSE;
pam_handle_t * pam_handle = NULL;
struct pam_conv pam_conv_data;
static PamConvData client_data;
client_data.username = username_copy;
client_data.password = password_copy;
/* Setup the pam conversion structure */
pam_conv_data.conv = pam_conversion_func;
pam_conv_data.appdata_ptr = (void *) &client_data;
/* Start pam */
if (pam_start("su", username_copy, &pam_conv_data, &pam_handle) == PAM_SUCCESS) {
/* Attempt auth */
if (pam_authenticate(pam_handle, PAM_SILENT) == PAM_SUCCESS) {
/* Authentication worked */
pam_end (pam_handle, PAM_SUCCESS);
rv = TRUE;
}
}
if (!rv)
pam_end (pam_handle, 0);
g_free (username_copy);
g_free (password_copy);
return rv;
}
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