glibc/sysdeps/unix/sysv/linux/seteuid.c
Ulrich Drepper 5148d49f37 Update.
1998-08-21 17:21  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/glob64.c: Define __stat using __xstat64.

1998-08-20  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makefile (elf/ldso_install): Put back.  The problem still persists.
	* elf/Makefile (ldso_install): Likewise.

1998-08-20  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* db2/db/db.c (db_open) [_LIBC]: Rename to __nss_db_open and
	create weak alias.
	* include/db.h: Declare __nss_db_open.
	* db2/Versions: Export it.

	* db2/makedb.c: Convert to use db2 API.
	* nss/nss_db/db-XXX.c: Likewise.
	* nss/nss_db/db-netgrp.c: Likewise.
	* nss/nss_db/db-alias.c: Likewise.
	(_nss_db_getaliasent_r): Allow retrying with a larger buffer.

1998-08-19  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
	sys_setresuid, already built automatically (or not).
	* sysdeps/unix/sysv/linux/syscalls.list: Define __setresuid
	instead of __syscall_setresuid and add back setresuid.
	* sysdeps/unix/sysv/linux/seteuid.c: Use __setresuid instead of
	__syscall_setresuid.

1998-08-21  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* sysdeps/unix/sysv/linux/sys/mount.h: Fix typo.

	* libio/libioP.c (FILEBUF_LITERAL): Also initialize new _offset
1998-08-21 17:22:56 +00:00

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1.6 KiB
C

/* Copyright (C) 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>
#ifdef __NR_setresuid
extern int __setresuid (uid_t ruid, uid_t euid, uid_t suid);
int
seteuid (uid_t uid)
{
int result;
if (uid == (uid_t) ~0)
{
__set_errno (EINVAL);
return -1;
}
/* First try the syscall. */
result = __setresuid (-1, uid, -1);
if (result == -1 && errno == ENOSYS)
/* No system call available. Use emulation. This may not work
since `setreuid' also sets the saved user ID when UID is not
equal to the real user ID, making it impossible to switch back. */
result = __setreuid (-1, uid);
return result;
}
#else
# include <sysdeps/unix/bsd/seteuid.c>
#endif