129 lines
3.9 KiB
C
129 lines
3.9 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "errno.h"
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#include "vfs_config.h"
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#include "sys/stat.h"
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#include "vnode.h"
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#include "fs/mount.h"
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#include "string.h"
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#include "stdlib.h"
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#include "utime.h"
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#include <fcntl.h>
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/****************************************************************************
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* Global Functions
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****************************************************************************/
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int utime(const char *path, const struct utimbuf *ptimes)
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{
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int ret;
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char *fullpath = NULL;
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struct Vnode *vnode = NULL;
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time_t cur_sec;
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struct IATTR attr = {0};
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/* Sanity checks */
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if (path == NULL) {
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ret = -EINVAL;
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goto errout;
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}
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if (!path[0]) {
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ret = -ENOENT;
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goto errout;
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}
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ret = vfs_normalize_path((const char *)NULL, path, &fullpath);
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if (ret < 0) {
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goto errout;
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}
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/* Get the vnode for this file */
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VnodeHold();
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ret = VnodeLookup(fullpath, &vnode, 0);
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if (ret != LOS_OK) {
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VnodeDrop();
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goto errout_with_path;
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}
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if ((vnode->originMount) && (vnode->originMount->mountFlags & MS_RDONLY)) {
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VnodeDrop();
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ret = -EROFS;
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goto errout_with_path;
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}
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if (vnode->vop && vnode->vop->Chattr) {
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if (ptimes == NULL) {
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/* get current seconds */
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cur_sec = time(NULL);
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attr.attr_chg_atime = cur_sec;
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attr.attr_chg_mtime = cur_sec;
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} else {
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attr.attr_chg_atime = ptimes->actime;
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attr.attr_chg_mtime = ptimes->modtime;
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}
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attr.attr_chg_valid = CHG_ATIME | CHG_MTIME;
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ret = vnode->vop->Chattr(vnode, &attr);
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if (ret != OK) {
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VnodeDrop();
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goto errout_with_path;
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}
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} else {
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ret = -ENOSYS;
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VnodeDrop();
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goto errout_with_path;
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}
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VnodeDrop();
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/* Successfully stat'ed the file */
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free(fullpath);
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return OK;
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/* Failure conditions always set the errno appropriately */
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errout_with_path:
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free(fullpath);
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errout:
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if (ret != 0) {
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set_errno(-ret);
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}
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return VFS_ERROR;
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}
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