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/*
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#define _GNU_SOURCE
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <grp.h>
#include <sys/types.h>
#include <sys/syscall.h>
#ifdef __NR_setresgid
libc_hidden_proto(setresgid)
#endif
libc_hidden_proto(setregid)
int setegid(gid_t gid)
{
int result;
if (gid == (gid_t) ~0)
{
__set_errno (EINVAL);
return -1;
}
#ifdef __NR_setresgid
result = setresgid(-1, gid, -1);
if (result == -1 && errno == ENOSYS)
/* Will also set the saved group ID if egid != gid,
* making it impossible to switch back...*/
#endif
result = setregid(-1, gid);
return result;
}
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