glibc/include/dirent.h
H.J. Lu 4587a421c5 Mark internal dirent functions with attribute_hidden [BZ #18822]
Mark internal dirent functions with attribute_hidden to allow direct
access within libc.so and libc.a without using GOT nor PLT.  __readdir64
is hidden with libc_hidden_proto and libc_hidden_def since the exported
readdir64 is an alias of __readdir64.

	[BZ #18822]
	* include/dirent.h (__opendir): Always add attribute_hidden.
	(__fdopendir): Likewise.
	(__closedir): Likewise.
	(__readdir): Likewise.
	(__readdir64): Add libc_hidden_proto.
	* sysdeps/mach/hurd/readdir64.c (__readdir64): Add libc_hidden_def.
	* sysdeps/unix/sysv/linux/i386/readdir64.c (__readdir64): Likewise.
	* sysdeps/unix/sysv/linux/readdir64.c (__readdir64): Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/readdir.c (__GI___readdir64):
	New alias.
2017-10-01 15:51:11 -07:00

86 lines
2.8 KiB
C

#ifndef _DIRENT_H
# ifndef _ISOMAC
# include <dirstream.h>
# endif
# include <dirent/dirent.h>
# ifndef _ISOMAC
# include <sys/stat.h>
# include <stdbool.h>
struct scandir_cancel_struct
{
DIR *dp;
void *v;
size_t cnt;
};
/* Now define the internal interfaces. */
extern DIR *__opendir (const char *__name) attribute_hidden;
extern DIR *__opendirat (int dfd, const char *__name) attribute_hidden;
extern DIR *__fdopendir (int __fd) attribute_hidden;
extern int __closedir (DIR *__dirp) attribute_hidden;
extern struct dirent *__readdir (DIR *__dirp) attribute_hidden;
extern struct dirent64 *__readdir64 (DIR *__dirp);
libc_hidden_proto (__readdir64)
extern int __readdir_r (DIR *__dirp, struct dirent *__entry,
struct dirent **__result);
extern int __readdir64_r (DIR *__dirp, struct dirent64 *__entry,
struct dirent64 **__result);
extern int __scandir64 (const char * __dir,
struct dirent64 *** __namelist,
int (*__selector) (const struct dirent64 *),
int (*__cmp) (const struct dirent64 **,
const struct dirent64 **));
extern __ssize_t __getdirentries (int __fd, char *__restrict __buf,
size_t __nbytes,
__off_t *__restrict __basep)
__THROW __nonnull ((2, 4));
extern __ssize_t __getdents (int __fd, char *__buf, size_t __nbytes)
attribute_hidden;
extern __ssize_t __getdents64 (int __fd, char *__buf, size_t __nbytes)
attribute_hidden;
extern int __alphasort64 (const struct dirent64 **a, const struct dirent64 **b)
__attribute_pure__;
extern int __versionsort64 (const struct dirent64 **a,
const struct dirent64 **b)
__attribute_pure__;
extern DIR *__alloc_dir (int fd, bool close_fd, int flags,
const struct stat64 *statp) attribute_hidden;
extern __typeof (rewinddir) __rewinddir;
extern __typeof (seekdir) __seekdir;
extern __typeof (dirfd) __dirfd;
extern void __scandir_cancel_handler (void *arg) attribute_hidden;
extern int __scandir_tail (DIR *dp,
struct dirent ***namelist,
int (*select) (const struct dirent *),
int (*cmp) (const struct dirent **,
const struct dirent **))
attribute_hidden;
# ifdef _DIRENT_MATCHES_DIRENT64
# define __scandir64_tail (dp, namelist, select, cmp) \
__scandir_tail (dp, (struct dirent ***) (namelist), \
(int (*) (const struct dirent *)) (select), \
(int (*) (const struct dirent **, \
const struct dirent **)) (cmp))
# else
extern int __scandir64_tail (DIR *dp,
struct dirent64 ***namelist,
int (*select) (const struct dirent64 *),
int (*cmp) (const struct dirent64 **,
const struct dirent64 **))
attribute_hidden;
# endif
libc_hidden_proto (__rewinddir)
extern __typeof (scandirat) __scandirat;
libc_hidden_proto (__scandirat)
libc_hidden_proto (scandirat64)
# if IS_IN (rtld)
extern __typeof (__rewinddir) __rewinddir attribute_hidden;
# endif
# endif
#endif