X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;ds=sidebyside;f=libsysio%2Fsrc%2Fopen.c;fp=libsysio%2Fsrc%2Fopen.c;h=0000000000000000000000000000000000000000;hb=cdfbc722f4d63d3ed3740cbb549062f712010d90;hp=86426dace65312f7b4f441c1fd4aad7feb3d9d07;hpb=fc75c4b4f597f095fc16d6119427f17f0d8e2a85;p=fs%2Flustre-release.git diff --git a/libsysio/src/open.c b/libsysio/src/open.c deleted file mode 100644 index 86426da..0000000 --- a/libsysio/src/open.c +++ /dev/null @@ -1,308 +0,0 @@ -/* - * 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 -#include -#include -#include -#include -#include -#include -#include - -#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