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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.
87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
/* Copyright (C) 2005, 2006, 2007 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 <stddef.h>
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#include <stdio.h>
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#include <sys/stat.h>
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/* Open FILE with access OFLAG. Interpret relative paths relative to
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the directory associated with FD. If OFLAG includes O_CREAT, a
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third argument is the file protection. */
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int
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__openat64 (fd, file, oflag)
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int fd;
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const char *file;
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int oflag;
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{
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int mode;
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if (file == NULL)
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{
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__set_errno (EINVAL);
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return -1;
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}
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if (fd != AT_FDCWD && file[0] != '/')
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{
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/* Check FD is associated with a directory. */
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struct stat64 st;
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if (__fxstat64 (_STAT_VER, fd, &st) != 0)
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return -1;
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if (!S_ISDIR (st.st_mode))
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{
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__set_errno (ENOTDIR);
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return -1;
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}
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}
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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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__set_errno (ENOSYS);
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return -1;
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}
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libc_hidden_def (__openat64)
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weak_alias (__openat64, openat64)
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stub_warning (openat64)
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int
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__openat64_2 (fd, file, oflag)
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int fd;
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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 openat64 call: O_CREAT without mode");
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return __openat64 (file, oflag);
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}
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stub_warning (__openat_2)
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#include <stub-tag.h>
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