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Diffstat (limited to 'sysdeps/unix/sysv/linux/readdir64_r.c')
-rw-r--r--sysdeps/unix/sysv/linux/readdir64_r.c48
1 files changed, 47 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/readdir64_r.c b/sysdeps/unix/sysv/linux/readdir64_r.c
index 3dfbf4fd2c..ae3033ca06 100644
--- a/sysdeps/unix/sysv/linux/readdir64_r.c
+++ b/sysdeps/unix/sysv/linux/readdir64_r.c
@@ -1,7 +1,53 @@
+/* Read a directory in reentrant mode. Linux LFS version.
+ Copyright (C) 1997-2018 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
+ <http://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 __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 */