+++ /dev/null
-/*
- * This Cplant(TM) source code is the property of Sandia National
- * Laboratories.
- *
- * This Cplant(TM) source code is copyrighted by Sandia National
- * Laboratories.
- *
- * The redistribution of this Cplant(TM) source code is subject to the
- * terms of the GNU Lesser General Public License
- * (see cit/LGPL or http://www.gnu.org/licenses/lgpl.html)
- *
- * Cplant(TM) Copyright 1998-2004 Sandia Corporation.
- * Under the terms of Contract DE-AC04-94AL85000, there is a non-exclusive
- * license for use of this work by or on behalf of the US Government.
- * Export of this program may require a license from the United States
- * Government.
- */
-
-/*
- * This 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.
- *
- * This 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Questions or comments about this library should be sent to:
- *
- * Lee Ward
- * Sandia National Laboratories, New Mexico
- * P.O. Box 5800
- * Albuquerque, NM 87185-1110
- *
- * lee@sandia.gov
- */
-
-#include <unistd.h>
-#include <stdlib.h>
-#ifdef __GLIBC__
-#include <alloca.h>
-#endif
-#include <string.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <dirent.h>
-#include <sys/queue.h>
-
-#include "sysio.h"
-#include "inode.h"
-#include "file.h"
-#include "sysio-symbols.h"
-
-#ifndef __GNUC__
-#define __restrict
-#endif
-
-static ssize_t
-filldirents(struct file *fil,
- char *buf, size_t nbytes,
- _SYSIO_OFF_T *__restrict basep)
-{
- _SYSIO_OFF_T opos;
- ssize_t cc;
-
- if (!S_ISDIR(fil->f_ino->i_stbuf.st_mode))
- return -ENOTDIR;
-
- opos = fil->f_pos;
- cc =
- (*fil->f_ino->i_ops.inop_filldirentries)(fil->f_ino,
- &fil->f_pos,
- buf, nbytes);
- if (cc < 0)
- return cc;
- *basep = opos;
- return cc;
-}
-
-static ssize_t
-PREPEND(_, SYSIO_INTERFACE_NAME(getdirentries64))(int fd,
- char *buf,
- size_t nbytes,
- _SYSIO_OFF_T * __restrict
- basep)
-{
- struct file *fil;
- ssize_t cc;
- SYSIO_INTERFACE_DISPLAY_BLOCK;
-
- SYSIO_INTERFACE_ENTER;
-
- fil = _sysio_fd_find(fd);
- if (!(fil && fil->f_ino)) {
- SYSIO_INTERFACE_RETURN(-1, -EBADF);
- }
-
- cc = filldirents(fil, buf, nbytes, basep);
- SYSIO_INTERFACE_RETURN(cc < 0 ? -1 : cc, cc < 0 ? (int )cc : 0);
-}
-
-#ifdef _LARGEFILE64_SOURCE
-#undef getdirentries64
-sysio_sym_strong_alias(PREPEND(_, SYSIO_INTERFACE_NAME(getdirentries64)),
- SYSIO_INTERFACE_NAME(getdirentries64))
-#endif
-
-#undef getdirentries
-
-#ifndef DIRENT64_IS_NATURAL
-
-#ifndef EOVERFLOW
-#define EOVERFLOW ERANGE
-#endif
-
-#ifdef _DIRENT_HAVE_D_NAMLEN
-#define _namlen(dp) ((dp)->d_namlen)
-#else
-#define _namlen(dp) (strlen((dp)->d_name))
-#endif
-
-#ifndef _rndup
-#define _rndup(n, boundary) \
- ((((n) + (boundary) - 1 ) / (boundary)) * (boundary))
-#endif
-
-#define _dbaselen ((size_t )&((struct dirent *)0)->d_name[0])
-
-#ifdef __GLIBC__
-#define _dreclen(namlen) \
- ((_dbaselen + (namlen) + __alignof__ (struct dirent)) & \
- ~(__alignof__ (struct dirent) - 1))
-#else /* !defined(__GLIBC__) */
-#define _dreclen(namlen) \
- _rndup(_dbaselen + (namlen) + 1, sizeof(int))
-#endif
-
-#ifndef BSD
-ssize_t
-SYSIO_INTERFACE_NAME(getdirentries)(int fd,
- char *buf,
- size_t nbytes,
- off_t * __restrict basep)
-#else
-int
-SYSIO_INTERFACE_NAME(getdirentries)(int fd,
- char *buf,
- int nbytes,
- long * __restrict basep)
-#endif
-{
- struct file *fil;
- _SYSIO_OFF_T b;
- ssize_t cc, count;
- struct dirent64 *d64p, d64;
- struct dirent *dp;
- size_t n, reclen;
- void *p;
- char *cp;
- SYSIO_INTERFACE_DISPLAY_BLOCK;
-
- SYSIO_INTERFACE_ENTER;
-
- fil = _sysio_fd_find(fd);
- if (!(fil && fil->f_ino)) {
- SYSIO_INTERFACE_RETURN(-1, -EBADF);
- }
-
- count = cc = filldirents(fil, buf, nbytes, &b);
- d64p = (void *)buf;
- dp = (void *)buf;
- reclen = 0;
- while (cc > 0) {
- n = _namlen(d64p);
- reclen = _dreclen(n);
- d64.d_ino = d64p->d_ino;
- d64.d_off = d64p->d_off;
- d64.d_type = d64p->d_type;
- d64.d_reclen = d64p->d_reclen;
- /*
- * Copy name first.
- */
- (void )memcpy(dp->d_name, d64p->d_name, n);
- /*
- * Then, the rest.
- */
- dp->d_ino = d64.d_ino;
- dp->d_off = d64.d_off;
- if (dp->d_ino != d64.d_ino ||
- dp->d_off != d64.d_off) {
- /*
- * If conversion failure then we are done.
- */
- if (cc == count) {
- /*
- * Couldn't process any entries. We return
- * the error now.
- */
- cc = - EOVERFLOW;
- }
- break;
- }
- fil->f_pos = dp->d_off;
- dp->d_type = d64.d_type;
- dp->d_reclen = reclen;
- /*
- * Fill the remainder with zeros.
- */
- p = (char *)dp + dp->d_reclen;
-#ifdef HAVE_D_NAMLEN
- dp->d_namlen = n;
-#endif
- cp = dp->d_name + n;
- do {
- *cp++ = 0;
- } while (cp < (char *)p);
- /*
- * Advance.
- */
- dp = p;
- cc -= d64.d_reclen;
- d64p = (struct dirent64 *)((char *)d64p + d64.d_reclen);
- }
-
- if (cc < 0)
- SYSIO_INTERFACE_RETURN(-1, cc);
- cc = (char *)dp - buf;
- *basep = b;
- SYSIO_INTERFACE_RETURN(cc, 0);
-}
-#else /* !defined(DIRENT64_IS_NATURAL) */
-sysio_sym_strong_alias(PREPEND(_, SYSIO_INTERFACE_NAME(getdirentries64),
- SYSIO_INTERFACE_NAME(getdirentries)))
-#endif
-
-#ifdef REDSTORM
-#undef __getdirentries
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(getdirentries),
- PREPEND(__, SYSIO_INTERFACE_NAME(getdirentries)))
-#endif
-#if defined(BSD) || defined(REDSTORM)
-#undef _getdirentries
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(getdirentries),
- PREPEND(_, SYSIO_INTERFACE_NAME(getdirentries)))
-#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff