mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-29 05:29:47 +00:00
101 lines
1.9 KiB
C
101 lines
1.9 KiB
C
/*
|
|
* hfsutils - tools for reading and writing Macintosh HFS volumes
|
|
* Copyright (C) 1996-1998 Robert Leslie
|
|
*
|
|
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
* $Id: suid.c,v 1.7 1998/04/11 08:27:00 rob Exp $
|
|
*/
|
|
|
|
# ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
# endif
|
|
|
|
# include <sys/types.h>
|
|
|
|
# ifdef HAVE_UNISTD_H
|
|
# include <unistd.h>
|
|
# else
|
|
uid_t getuid(void);
|
|
uid_t geteuid(void);
|
|
gid_t getgid(void);
|
|
gid_t getegid(void);
|
|
# ifdef HAVE_SETREUID
|
|
int setreuid(uid_t, uid_t);
|
|
int setregid(gid_t, gid_t);
|
|
# else
|
|
int setuid(uid_t);
|
|
int setgid(gid_t);
|
|
# endif
|
|
# endif
|
|
|
|
# include "suid.h"
|
|
|
|
static uid_t uid, euid;
|
|
static gid_t gid, egid;
|
|
|
|
/*
|
|
* NAME: suid->init()
|
|
* DESCRIPTION: initialize application which may be running setuid/setgid
|
|
*/
|
|
void suid_init(void)
|
|
{
|
|
uid = getuid();
|
|
gid = getgid();
|
|
|
|
euid = geteuid();
|
|
egid = getegid();
|
|
|
|
suid_disable();
|
|
}
|
|
|
|
/*
|
|
* NAME: suid->enable()
|
|
* DESCRIPTION: engage any setuid privileges
|
|
*/
|
|
void suid_enable(void)
|
|
{
|
|
# ifdef HAVE_SETREUID
|
|
|
|
setreuid(-1, euid);
|
|
setregid(-1, egid);
|
|
|
|
# else
|
|
|
|
setuid(euid);
|
|
setgid(egid);
|
|
|
|
# endif
|
|
}
|
|
|
|
/*
|
|
* NAME: suid->disable()
|
|
* DESCRIPTION: revoke all setuid privileges
|
|
*/
|
|
void suid_disable(void)
|
|
{
|
|
# ifdef HAVE_SETREUID
|
|
|
|
setreuid(-1, uid);
|
|
setregid(-1, gid);
|
|
|
|
# else
|
|
|
|
setuid(uid);
|
|
setgid(gid);
|
|
|
|
# endif
|
|
}
|