From efabf8478a426f8f468beea3cfe18e73a849be47 Mon Sep 17 00:00:00 2001 From: netblue30 Date: Thu, 18 Feb 2016 20:14:09 -0500 Subject: euid switching --- src/include/euid_common.h | 48 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 src/include/euid_common.h (limited to 'src/include') diff --git a/src/include/euid_common.h b/src/include/euid_common.h new file mode 100644 index 000000000..1cba548ab --- /dev/null +++ b/src/include/euid_common.h @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2014-2016 netblue30 (netblue30@yahoo.com) + * + * This file is part of firejail project + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#ifndef EUID_COMMON_H +#define EUID_COMMON_H +#include +#include +#include + +extern uid_t firejail_uid; +extern uid_t firejail_uid_switch; + +static inline void EUID_ROOT(void) { + if (seteuid(0) == -1) + fprintf(stderr, "Error: cannot switch euid to root\n"); +} + +static inline void EUID_USER(void) { + if (seteuid(firejail_uid) == -1) + fprintf(stderr, "Error: cannot switch euid to user\n"); +} + +static inline void EUID_PRINT(void) { + printf("debug: uid %d, euid %d\n", getuid(), geteuid()); +} + +static inline void EUID_INIT(void) { + firejail_uid = getuid(); +} + +#endif -- cgit v1.2.3-54-g00ecf