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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
*
* Copyright (C) 2006 William Jon McCann <mccann@jhu.edu>
*
* 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.
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_GETPEERUCRED
#include <ucred.h>
#endif
#include "ck-sysdeps.h"
gboolean
ck_get_socket_peer_credentials (int socket_fd,
pid_t *pid,
uid_t *uid,
GError **error)
{
gboolean ret;
uid_t uid_read;
pid_t pid_read;
uid_read = 0;
pid_read = 0;
ret = FALSE;
#ifdef SO_PEERCRED
struct ucred cr;
socklen_t cr_len;
cr_len = sizeof (cr);
if (getsockopt (fd, SOL_SOCKET, SO_PEERCRED, &cr, &cr_len) == 0 && cr_len == sizeof (cr)) {
pid_read = cr.pid;
uid_read = cr.uid;
ret = TRUE;
} else {
g_warning ("Failed to getsockopt() credentials, returned len %d/%d: %s\n",
cr_len,
(int) sizeof (cr),
g_strerror (errno));
}
#elif defined(HAVE_GETPEERUCRED)
ucred_t * ucred = NULL;
if (getpeerucred (client_fd, &ucred) == 0) {
pid_read = ucred_getpid (ucred);
uid_read = ucred_geteuid (ucred);
ret = TRUE;
} else {
g_warning ("Failed to getpeerucred() credentials: %s\n",
g_strerror (errno));
}
if (ucred != NULL) {
ucred_free (ucred);
}
#else /* !SO_PEERCRED && !HAVE_GETPEERUCRED */
g_warning ("Socket credentials not supported on this OS\n");
#endif
return ret;
}
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