X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=libsysio%2Fsrc%2Ftruncate.c;fp=libsysio%2Fsrc%2Ftruncate.c;h=0000000000000000000000000000000000000000;hp=27ef6b663170cb353c2e3d547e6fb1167380e7c3;hb=cdfbc722f4d63d3ed3740cbb549062f712010d90;hpb=fc75c4b4f597f095fc16d6119427f17f0d8e2a85 diff --git a/libsysio/src/truncate.c b/libsysio/src/truncate.c deleted file mode 100644 index 27ef6b6..0000000 --- a/libsysio/src/truncate.c +++ /dev/null @@ -1,164 +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 1998-2003 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 -#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" - -/* - * Truncate file, given path (alias) or index node. - */ -static int -do_truncate(struct pnode *pno, struct inode *ino, _SYSIO_OFF_T length) -{ - struct intnl_stat stbuf; - unsigned mask; - - if (length < 0) - return -EINVAL; - - if (!ino && pno->p_base->pb_ino) - ino = pno->p_base->pb_ino; - if (!ino) - return -EBADF; - if (S_ISDIR(ino->i_stbuf.st_mode)) /* for others too? */ - return -EISDIR; - if (!S_ISREG(ino->i_stbuf.st_mode)) - return -EINVAL; - - (void )memset(&stbuf, 0, sizeof(stbuf)); - stbuf.st_size = length; - mask = SETATTR_LEN; - return _sysio_setattr(pno, ino, mask, &stbuf); -} - -static int -PREPEND(_, SYSIO_INTERFACE_NAME(truncate))(const char *path, - _SYSIO_OFF_T length) -{ - int err; - struct pnode *pno; - SYSIO_INTERFACE_DISPLAY_BLOCK; - - SYSIO_INTERFACE_ENTER; - err = _sysio_namei(_sysio_cwd, path, 0, NULL, &pno); - if (err) - goto out; - err = do_truncate(pno, pno->p_base->pb_ino, length); - P_RELE(pno); - -out: - SYSIO_INTERFACE_RETURN(err ? -1 : 0, err); -} - -#ifdef _LARGEFILE64_SOURCE -#undef truncate64 -sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(truncate)), - SYSIO_INTERFACE_NAME(truncate64)) - -#undef truncate -int -SYSIO_INTERFACE_NAME(truncate)(const char *path, off_t length) -{ - - return PREPEND(_, SYSIO_INTERFACE_NAME(truncate))(path, length); -} -#else -#undef truncate -sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(truncate)), - SYSIO_INTERFACE_NAME(truncate)) -#endif - -static int -PREPEND(_, SYSIO_INTERFACE_NAME(ftruncate))(int fd, _SYSIO_OFF_T length) -{ - int err; - struct file *fil; - SYSIO_INTERFACE_DISPLAY_BLOCK; - - SYSIO_INTERFACE_ENTER; - err = 0; - fil = _sysio_fd_find(fd); - if (!fil) { - err = -EBADF; - goto out; - } - if (!F_CHKRW(fil, 'w')) { - err = -EBADF; - goto out; - } - err = do_truncate(NULL, fil->f_ino, length); -out: - SYSIO_INTERFACE_RETURN(err ? -1 : 0, err); -} - -#ifdef _LARGEFILE64_SOURCE -#undef ftruncate64 -sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(ftruncate)), - SYSIO_INTERFACE_NAME(ftruncate64)) - -#undef ftruncate -int -SYSIO_INTERFACE_NAME(ftruncate)(int fd, off_t length) -{ - - return PREPEND(_, SYSIO_INTERFACE_NAME(ftruncate))(fd, length); -} -#else -#undef ftruncate -sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(ftruncate)), - SYSIO_INTERFACE_NAME(ftruncate)) -#endif