+++ /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 1998-2006 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
- */
-
-/*
- * Incorporate the GNU flags for open if we can.
- */
-#define _GNU_SOURCE
-
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <assert.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <sys/queue.h>
-
-#include "sysio.h"
-#include "inode.h"
-#include "file.h"
-#include "fs.h"
-#include "mount.h"
-#include "sysio-symbols.h"
-
-/*
- * Open file support.
- */
-
-mode_t _sysio_umask = 0; /* process umask. */
-
-/*
- * Internal form of open.
- */
-int
-_sysio_open(struct pnode *pno, int flags, mode_t mode)
-{
- int ro;
- int w;
- int err;
- struct inode *ino;
-
- ro = IS_RDONLY(pno);
- w = flags & (O_WRONLY|O_RDWR);
- if (w == (O_WRONLY|O_RDWR)) {
- /*
- * Huh?
- */
- return -EINVAL;
- }
- if (w && ro)
- return -EROFS;
- ino = pno->p_base->pb_ino;
- if ((flags & O_CREAT) && !ino) {
- struct pnode *parent;
-
- /*
- * Must create it.
- */
- if (ro)
- return -EROFS;
- parent = pno->p_parent;
- err = _sysio_p_validate(parent, NULL, NULL);
- if (!err) {
- ino = parent->p_base->pb_ino;
- assert(ino);
- err = (*ino->i_ops.inop_open)(pno, flags, mode);
- }
- } else if ((flags & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL))
- err = -EEXIST;
- else if (!ino)
- err = _sysio_p_validate(pno, NULL, NULL);
-#ifdef O_NOFOLLOW
- else if (flags & O_NOFOLLOW && S_ISLNK(ino->i_stbuf.st_mode))
- err = -ELOOP;
-#endif
- else {
- /*
- * Simple open of pre-existing file.
- */
- err = (*ino->i_ops.inop_open)(pno, flags, mode);
- }
-
- return err;
-}
-
-#undef open
-
-int
-SYSIO_INTERFACE_NAME(open)(const char *path, int flags, ...)
-{
- mode_t mode;
- unsigned ndflags;
- struct intent intent;
- int rtn;
- struct pnode *pno;
- struct file *fil;
- SYSIO_INTERFACE_DISPLAY_BLOCK;
-
- SYSIO_INTERFACE_ENTER;
- /*
- * Get mode argument and determine parameters for namei
- */
- mode = 0;
- ndflags = 0;
- intent.int_opmask = INT_OPEN;
- if (flags & O_CREAT) {
- va_list ap;
-
- /*
- * Set ndflags to indicate return of negative alias is OK.
- */
- ndflags |= ND_NEGOK;
-
- /*
- * Will need mode too.
- */
- va_start(ap, flags);
- mode =
-#ifndef REDSTORM
- va_arg(ap, mode_t);
-#else
- va_arg(ap, int);
-#endif
- va_end(ap);
- mode &= ~(_sysio_umask & 0777) | 07000; /* apply umask */
- intent.int_opmask |= INT_CREAT;
- }
-#ifdef O_NOFOLLOW
- if (flags & O_NOFOLLOW)
- ndflags |= ND_NOFOLLOW;
-#endif
-
- /*
- * Find the file.
- */
- fil = NULL;
- INTENT_INIT(&intent, intent.int_opmask, &mode, &flags);
- pno = NULL;
- rtn = _sysio_namei(_sysio_cwd, path, ndflags, &intent, &pno);
- if (rtn)
- goto error;
- /*
- * Ask for the open/creat.
- */
- rtn = _sysio_open(pno, flags, mode);
- if (rtn)
- goto error;
- /*
- * Get a file descriptor.
- */
- fil = _sysio_fnew(pno->p_base->pb_ino, flags);
- if (!fil) {
- rtn = -ENOMEM;
- goto error;
- }
- rtn = _sysio_fd_set(fil, -1, 0);
- if (rtn < 0)
- goto error;
-
- P_RELE(pno);
-
- SYSIO_INTERFACE_RETURN(rtn, 0);
-
-error:
- if (fil)
- F_RELE(fil);
- if (pno)
- P_RELE(pno);
- SYSIO_INTERFACE_RETURN(-1, rtn);
-}
-
-#ifdef __GLIBC__
-#undef __open
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(open),
- PREPEND(__, SYSIO_INTERFACE_NAME(open)))
-#undef open64
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(open), SYSIO_INTERFACE_NAME(open64))
-#undef __open64
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(open),
- PREPEND(__, SYSIO_INTERFACE_NAME(open64)))
-#endif
-
-#ifdef REDSTORM
-#undef __libc_open64
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(open),
- PREPEND(__, SYSIO_INTERFACE_NAME(libc_open64)))
-#endif
-
-#ifdef BSD
-#undef _open
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(open),
- PREPEND(_, SYSIO_INTERFACE_NAME(open)))
-#endif
-
-int
-SYSIO_INTERFACE_NAME(close)(int fd)
-{
- int err;
- SYSIO_INTERFACE_DISPLAY_BLOCK;
-
- SYSIO_INTERFACE_ENTER;
- err = _sysio_fd_close(fd);
- SYSIO_INTERFACE_RETURN(err ? -1 : 0, err);
-}
-
-#ifdef __GLIBC__
-#undef __close
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(close),
- PREPEND(__, SYSIO_INTERFACE_NAME(close)))
-#endif
-
-#ifdef BSD
-#undef _close
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(close),
- PREPEND(_, SYSIO_INTERFACE_NAME(close)))
-#endif
-
-int
-SYSIO_INTERFACE_NAME(creat)(const char *path, mode_t mode)
-{
-
- return SYSIO_INTERFACE_NAME(open)(path, O_CREAT|O_WRONLY|O_TRUNC, mode);
-}
-
-#ifdef __GLIBC__
-#undef __creat
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(creat),
- PREPEND(__, SYSIO_INTERFACE_NAME(creat)))
-#undef creat64
-#ifndef HAVE_LUSTRE_HACK
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(creat), SYSIO_INTERFACE_NAME(creat64))
-#else
-/* XXX workaround SuSE SLES 8, glibc-2.2.5 */
-sysio_sym_strong_alias(SYSIO_INTERFACE_NAME(creat),
- SYSIO_INTERFACE_NAME(creat64))
-#endif
-#undef __creat64
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(creat),
- PREPEND(__, SYSIO_INTERFACE_NAME(creat64)))
-#endif
-
-#ifdef REDSTORM
-#undef __libc_creat
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(creat),
- PREPEND(__, SYSIO_INTERFACE_NAME(libc_creat)))
-#endif
-
-#ifdef BSD
-#undef _creat
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(creat),
- PREPEND(_, SYSIO_INTERFACE_NAME(creat)))
-#endif
-
-mode_t
-SYSIO_INTERFACE_NAME(umask)(mode_t mask)
-{
- mode_t omask;
-
- omask = _sysio_umask;
- _sysio_umask = mask & 0777;
- return omask;
-}
-
-#ifdef REDSTORM
-#undef __umask
-sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(umask),
- PREPEND(__, SYSIO_INTERFACE_NAME(umask)))
-#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff