ddfd053577
* Versions: Define GLIBC_2.7 for libc. * include/stdio.h: Declare __fortify_fail. * debug/fortify_fail.c: New file. * debug/Makefile (routines): Add fortify_fail. * debug/chk_fail.c: Use __fortify_fail. * debug/stack_chk_fail.c: Likewise. * io/Versions: Export __open_2, __open64_2, __openat_2, and __openat64_2 for GLIBC_2.7. * io/fcntl.h: When compiling with fortification, include bits/fcntl2.h. * io/open.c: Define *_2 variant of function which checks for O_CREAT and fails if necessary. * io/open64.c: Likewise. * io/openat.c: Likewise. * io/openat64.c: Likewise. * sysdeps/unix/sysv/linux/open64.c: Likewise. * sysdeps/unix/sysv/linux/openat.c: Likewise. * sysdeps/unix/sysv/linux/openat64.c: Likewise. * io/bits/fcntl2.h: New file. * include/fcntl.h: Declare __open_2, __open64_2, __openat_2, and __openat64_2. * include/bits/fcntl2.h: New file. * sysdeps/unix/sysv/linux/Makefile [subdir=io] (sysdep_routines): Add open_2. * sysdeps/unix/sysv/linux/open_2.c: New file.
69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/* Copyright (C) 1991,1995-1997,1999,2000,2002,2007
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <errno.h>
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#include <fcntl.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <sysdep-cancel.h>
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/* Open FILE with access OFLAG. If OFLAG includes O_CREAT,
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a third argument is the file protection. */
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int
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__libc_open64 (const char *file, int oflag, ...)
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{
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int mode = 0;
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if (oflag & O_CREAT)
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{
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va_list arg;
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va_start (arg, oflag);
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mode = va_arg (arg, int);
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va_end (arg);
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}
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if (SINGLE_THREAD_P)
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return INLINE_SYSCALL (open, 3, file, oflag | O_LARGEFILE, mode);
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int oldtype = LIBC_CANCEL_ASYNC ();
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int result = INLINE_SYSCALL (open, 3, file, oflag | O_LARGEFILE, mode);
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LIBC_CANCEL_RESET (oldtype);
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return result;
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}
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weak_alias (__libc_open64, __open64)
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libc_hidden_weak (__open64)
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weak_alias (__libc_open64, open64)
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#ifndef PTW
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int
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__open64_2 (file, oflag)
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const char *file;
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int oflag;
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{
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if (oflag & O_CREAT)
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__fortify_fail ("invalid open64 call: O_CREAT without mode");
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return __open64 (file, oflag);
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}
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#endif
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