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/*
* krb5_seteuid: Attempt to set the effective user ID of the current process
* in such a way it can be restored lated.
*
* Copyright 1996 by the Massachusetts Institute of Technology.
*
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that the above copyright notice appear in all
* copies and that both that copyright notice and this permission
* notice appear in supporting documentation, and that the name of
* M.I.T. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability
* of this software for any purpose. It is provided "as is" without
* express or implied warranty.
*
*/
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <k5-util.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <errno.h>
int krb5_seteuid(euid_in)
int euid_in;
{
uid_t euid = (uid_t) euid_in;
#if defined(HAVE_SETEUID)
return (seteuid(euid));
#else
#if defined(HAVE_SETRESUID)
return (setresuid(getuid(), euid, geteuid()));
#else
#if defined(HAVE_SETREUID)
return setreuid(geteuid(), euid);
#else /*HAVE_SETREUID*/
/* You need to add a case to deal with this operating system.*/
errno = EPERM;
return -1;
#endif /* HAVE_SETREUID */
#endif /* HAVE_SETRESUID */
#endif /* HAVE_SETEUID */
}
int krb5_setegid(egid_in)
int egid_in;
{
gid_t egid = (gid_t) egid_in;
#ifdef HAVE_SETEGID
return (setegid(egid));
#else
#ifdef HAVE_SETRESGID
return (setresgid(getgid(), egid, getegid()));
#else
#ifdef HAVE_SETREGID
return (setregid(getegid(), egid));
#else /* HAVE_SETREGID */
/* You need to add a case to deal with this operating system.*/
errno = EPERM;
return -1;
#endif /* HAVE_SETREGID */
#endif /* HAVE_SETRESGID */
#endif /* HAVE_SETEGID */
}
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