glibc/sysdeps/unix/sysv/linux/readdir64_r.c

54 lines
2.1 KiB
C

/* Read a directory in reentrant mode. Linux LFS version.
Copyright (C) 1997-2020 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/>. */
/* When _DIRENT_MATCHES_DIRENT64 is defined we can alias 'readdir64' to
'readdir'. However the function signatures are not equal due
different return types, so we need to suppress {__}readdir so weak
and strong alias do not throw conflicting types errors. */
#define readdir_r __no_readdir_r_decl
#define __readdir_r __no___readdir_r_decl
#include <dirent.h>
#define __READDIR_R __readdir64_r
#define __GETDENTS __getdents64
#define DIRENT_TYPE struct dirent64
#include <sysdeps/posix/readdir_r.c>
#undef __readdir_r
#undef readdir_r
#if _DIRENT_MATCHES_DIRENT64
strong_alias (__readdir64_r, __readdir_r)
weak_alias (__readdir64_r, readdir_r)
weak_alias (__readdir64_r, readdir64_r)
#else
/* The compat code expects the 'struct direct' with d_ino being a __ino_t
instead of __ino64_t. */
# include <shlib-compat.h>
versioned_symbol (libc, __readdir64_r, readdir64_r, GLIBC_2_2);
# if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
# include <olddirent.h>
# define __READDIR_R attribute_compat_text_section __old_readdir64_r
# define __GETDENTS __old_getdents64
# define DIRENT_TYPE struct __old_dirent64
# include <sysdeps/posix/readdir_r.c>
compat_symbol (libc, __old_readdir64_r, readdir64_r, GLIBC_2_1);
# endif /* SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2) */
#endif /* _DIRENT_MATCHES_DIRENT64 */