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glibc/io/fstat64.c
Adhemerval Zanella 94caafa040 io: Return EBAFD for negative file descriptor on fstat (BZ )
Now that fstat is implemented on top fstatat we need to handle negative
inputs.  The implementation now rejects AT_FDCWD, which would otherwise
be accepted by the kernel.

Checked on x86_64-linux-gnu and on i686-linux-gnu.
2021-03-11 10:51:55 -03:00

33 lines
1.0 KiB
C

/* Copyright (C) 1996-2021 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <sys/stat.h>
#include <errno.h>
int
__fstat64 (int fd, struct stat64 *buf)
{
if (fd < 0)
{
__set_errno (EBADF);
return -1;
}
return __fstatat64 (fd, "", buf, AT_EMPTY_PATH);
}
hidden_def (__fstat64)
weak_alias (__fstat64, fstat64)