From 9ffbb61221fd5d0ee2b7989d2e5c785efee8cc02 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 16 Oct 1998 16:33:36 +0000 Subject: Update. * sysdeps/unix/opendir.c: Use O_DIRECTORY if available. If not available double check to verify it's a directory. * sysdeps/unix/sysv/linux/alpha/bits/fcntl.h: Add O_DIRECTORY. * sysdeps/unix/sysv/linux/mips/bits/fcntl: Likewise. * sysdeps/unix/sysv/linux/bits/fcntl.h: Remove O_* constants which are not generally available. * sysdeps/unix/sysv/linux/i386/bits/fcntl.h: New file. * sysdeps/unix/sysv/linux/i386/setgroups.c: Add range check for values. * sysdeps/unix/sysv/linux/arm/Makefile: New file. * sysdeps/unix/sysv/linux/arm/setegid.c: New file. * sysdeps/unix/sysv/linux/arm/seteuid.c: New file. * sysdeps/unix/sysv/linux/arm/setfsgid.c: New file. * sysdeps/unix/sysv/linux/arm/setfsuid.c: New file. * sysdeps/unix/sysv/linux/arm/setgid.c: New file. * sysdeps/unix/sysv/linux/arm/setgroups.c: New file. * sysdeps/unix/sysv/linux/arm/setresgid.c: New file. * sysdeps/unix/sysv/linux/arm/setresuid.c: New file. * sysdeps/unix/sysv/linux/arm/setuid.c: New file. * sysdeps/unix/sysv/linux/i386/setegid.c: New file. * sysdeps/unix/sysv/linux/i386/seteuid.c: New file. * sysdeps/unix/sysv/linux/i386/setfsgid.c: New file. * sysdeps/unix/sysv/linux/i386/setfsuid.c: New file. * sysdeps/unix/sysv/linux/i386/setgid.c: New file. * sysdeps/unix/sysv/linux/i386/setgroups.c: New file. * sysdeps/unix/sysv/linux/i386/setresgid.c: New file. * sysdeps/unix/sysv/linux/i386/setresuid.c: New file. * sysdeps/unix/sysv/linux/i386/setuid.c: New file. * sysdeps/unix/sysv/linux/m68k/setegid.c: New file. * sysdeps/unix/sysv/linux/m68k/seteuid.c: New file. * sysdeps/unix/sysv/linux/m68k/setfsgid.c: New file. * sysdeps/unix/sysv/linux/m68k/setfsuid.c: New file. * sysdeps/unix/sysv/linux/m68k/setgid.c: New file. * sysdeps/unix/sysv/linux/m68k/setgroups.c: New file. * sysdeps/unix/sysv/linux/m68k/setresgid.c: New file. * sysdeps/unix/sysv/linux/m68k/setresuid.c: New file. * sysdeps/unix/sysv/linux/m68k/setuid.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/setegid.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/seteuid.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/setfsgid.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/setfsuid.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/setgid.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/setgroups.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/setresgid.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/setresuid.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/setuid.c: New file. * sysdeps/unix/sysv/linux/arm/syscalls.list: Add s_setgid, s_setresuid, s_setresgid, and s_setuid. * sysdeps/unix/sysv/linux/i386/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/m68k/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/i386/Makefile [subdir=misc] (sysdep_routines): Add setfsgid, setfsuid, setresgid, and setresuid. * sysdeps/unix/sysv/linux/m68k/Makefile: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/Makefile: Likewise. 1998-10-16 Ulrich Drepper * iconv/skeleton.c: Include ELF header only of STATIC_GCONV is not --- sysdeps/unix/sysv/linux/i386/seteuid.c | 53 ++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/i386/seteuid.c (limited to 'sysdeps/unix/sysv/linux/i386/seteuid.c') diff --git a/sysdeps/unix/sysv/linux/i386/seteuid.c b/sysdeps/unix/sysv/linux/i386/seteuid.c new file mode 100644 index 0000000000..e82ecc36e9 --- /dev/null +++ b/sysdeps/unix/sysv/linux/i386/seteuid.c @@ -0,0 +1,53 @@ +/* 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 +#include +#include +#include + +#include + +#ifdef __NR_setresuid +extern int __setresuid (uid_t ruid, uid_t euid, uid_t suid); +#endif + +int +seteuid (uid_t uid) +{ + int result; + + if (uid == (uid_t) ~0 + || uid != (uid_t) ((__kernel_uid_t) uid)) + { + __set_errno (EINVAL); + return -1; + } + + /* First try the syscall. */ +#ifdef __NR_setresuid + 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. */ +#endif + result = __setreuid (-1, uid); + + return result; +} -- cgit 1.4.1