diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/readdir64_r.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/readdir64_r.c | 110 |
1 files changed, 9 insertions, 101 deletions
diff --git a/sysdeps/unix/sysv/linux/readdir64_r.c b/sysdeps/unix/sysv/linux/readdir64_r.c index a86ef7b8d2..63a6b80f95 100644 --- a/sysdeps/unix/sysv/linux/readdir64_r.c +++ b/sysdeps/unix/sysv/linux/readdir64_r.c @@ -1,106 +1,14 @@ -/* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc. - This file is part of the GNU C Library. +#define __READDIR_R __readdir64_r +#define __GETDENTS __getdents64 +#define DIRENT_TYPE struct dirent64 - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. +#include <sysdeps/unix/readdir_r.c> - 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 - Library General Public License for more details. +#include <shlib-compat.h> - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ +versioned_symbol (libc, __readdir64_r, readdir64_r, GLIBC_2_2); -#include <errno.h> -#include <limits.h> -#include <stddef.h> -#include <string.h> -#include <dirent.h> -#include <unistd.h> -#include <sys/types.h> -#include <assert.h> - -#include <dirstream.h> - -/* Read a directory entry from DIRP, store result in ENTRY and return - pointer to result in *RESULT. */ -int -readdir64_r (DIR *dirp, struct dirent64 *entry, struct dirent64 **result) -{ - struct dirent64 *dp; - size_t reclen; - - __libc_lock_lock (dirp->lock); - - do - { - if (dirp->offset >= dirp->size) - { - /* We've emptied out our buffer. Refill it. */ - - size_t maxread; - ssize_t bytes; - -#ifndef _DIRENT_HAVE_D_RECLEN - /* Fixed-size struct; must read one at a time (see below). */ - maxread = sizeof *dp; -#else - maxread = dirp->allocation; -#endif - - bytes = __getdents64 (dirp->fd, dirp->data, maxread); - if (bytes <= 0) - { - dp = NULL; - /* Reclen != 0 signals that an error occurred. */ - reclen = bytes != 0; - break; - } - dirp->size = (size_t) bytes; - - /* Reset the offset into the buffer. */ - dirp->offset = 0; - } - - dp = (struct dirent64 *) &dirp->data[dirp->offset]; - -#ifdef _DIRENT_HAVE_D_RECLEN - reclen = dp->d_reclen; -#else - /* The only version of `struct dirent64' that lacks `d_reclen' - is fixed-size. */ - assert (sizeof dp->d_name > 1); - reclen = sizeof *dp; - /* The name is not terminated if it is the largest possible size. - Clobber the following byte to ensure proper null termination. We - read just one entry at a time above so we know that byte will not - be used later. */ - dp->d_name[sizeof dp->d_name] = '\0'; -#endif - - dirp->offset += reclen; - -#ifdef _DIRENT_HAVE_D_OFF - dirp->filepos = dp->d_off; -#else - dirp->filepos += reclen; +#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2) +strong_alias (__readdir64_r, __old_readdir64_r) +compat_symbol (libc, __old_readdir64_r, readdir64_r, GLIBC_2_1); #endif - - /* Skip deleted files. */ - } - while (dp->d_ino == 0); - - if (dp != NULL) - *result = memcpy (entry, dp, reclen); - else - *result = NULL; - - __libc_lock_unlock (dirp->lock); - - return dp != NULL ? 0 : reclen ? errno : 0; -} |