glibc/sysdeps/generic/fd_to_filename.h

38 lines
1.4 KiB
C

/* Query filename corresponding to an open FD.
Copyright (C) 2001-2023 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/>. */
#ifndef _FD_TO_FILENAME_H
#define _FD_TO_FILENAME_H
#include <arch-fd_to_filename.h>
#include <intprops.h>
struct fd_to_filename
{
/* A positive int value has at most 10 decimal digits. */
char buffer[sizeof (FD_TO_FILENAME_PREFIX) + INT_STRLEN_BOUND (int)];
};
/* Writes a /proc/self/fd-style path for DESCRIPTOR to *STORAGE and
returns a pointer to the start of the string. DESCRIPTOR must be
non-negative. */
char *__fd_to_filename (int descriptor, struct fd_to_filename *storage)
attribute_hidden;
#endif /* _FD_TO_FILENAME_H */