diff options
Diffstat (limited to 'nuttx/fs/fs_stat.c')
| -rw-r--r-- | nuttx/fs/fs_stat.c | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/nuttx/fs/fs_stat.c b/nuttx/fs/fs_stat.c deleted file mode 100644 index 4df25028f..000000000 --- a/nuttx/fs/fs_stat.c +++ /dev/null @@ -1,224 +0,0 @@ -/**************************************************************************** - * fs/fs_stat.c - * - * Copyright (C) 2007-2009, 2012 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <sys/stat.h> -#include <string.h> -#include <sched.h> -#include <errno.h> - -#include "fs_internal.h" - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: statpseudo - ****************************************************************************/ - -static inline int statpseudo(FAR struct inode *inode, FAR struct stat *buf) -{ - /* Most of the stat entries just do not apply */ - - memset(buf, 0, sizeof(struct stat) ); - if (inode->u.i_ops) - { - if (inode->u.i_ops->read) - { - buf->st_mode = S_IROTH|S_IRGRP|S_IRUSR; - } - - if (inode->u.i_ops->write) - { - buf->st_mode |= S_IWOTH|S_IWGRP|S_IWUSR; - } - - if (INODE_IS_MOUNTPT(inode)) - { - buf->st_mode |= S_IFDIR; - } - else if (INODE_IS_BLOCK(inode)) - { - /* What is it also has child inodes? */ - - buf->st_mode |= S_IFBLK; - } - else - { - /* What is it if it also has child inodes? */ - - buf->st_mode |= S_IFCHR; - } - } - else - { - /* If it has no operations, then it must just be a intermediate - * node in the inode tree. It is something like a directory. - * We'll say that all pseudo-directories are read-able but not - * write-able. - */ - - buf->st_mode |= S_IFDIR|S_IROTH|S_IRGRP|S_IRUSR; - } - - return OK; -} - -/**************************************************************************** - * Name: statroot - ****************************************************************************/ - -static inline int statroot(FAR struct stat *buf) -{ - /* There is no inode associated with the fake root directory */ - - memset(buf, 0, sizeof(struct stat) ); - buf->st_mode = S_IFDIR|S_IROTH|S_IRGRP|S_IRUSR; - return OK; -} - -/**************************************************************************** - * Global Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: stat - * - * Returned Value: - * Zero on success; -1 on failure with errno set: - * - * EACCES Search permission is denied for one of the directories in the - * path prefix of path. - * EFAULT Bad address. - * ENOENT A component of the path path does not exist, or the path is an - * empty string. - * ENOMEM Out of memory - * ENOTDIR A component of the path is not a directory. - * - ****************************************************************************/ - -int stat(FAR const char *path, FAR struct stat *buf) -{ - FAR struct inode *inode; - const char *relpath = NULL; - int ret = OK; - - /* Sanity checks */ - - if (!path || !buf) - { - ret = EFAULT; - goto errout; - } - - if (!path[0]) - { - ret = ENOENT; - goto errout; - } - - /* Check for the fake root directory (which has no inode) */ - - if (strcmp(path, "/") == 0) - { - return statroot(buf); - } - - /* Get an inode for this file */ - - inode = inode_find(path, &relpath); - if (!inode) - { - /* This name does not refer to a psudeo-inode and there is no - * mountpoint that includes in this path. - */ - - ret = ENOENT; - goto errout; - } - - /* The way we handle the stat depends on the type of inode that we - * are dealing with. - */ - -#ifndef CONFIG_DISABLE_MOUNTPOINT - if (INODE_IS_MOUNTPT(inode)) - { - /* The node is a file system mointpoint. Verify that the mountpoint - * supports the stat() method - */ - - if (inode->u.i_mops && inode->u.i_mops->stat) - { - /* Perform the stat() operation */ - - ret = inode->u.i_mops->stat(inode, relpath, buf); - } - } - else -#endif - { - /* The node is part of the root pseudo file system */ - - ret = statpseudo(inode, buf); - } - - /* Check if the stat operation was successful */ - - if (ret < 0) - { - ret = -ret; - goto errout_with_inode; - } - - /* Successfully stat'ed the file */ - - inode_release(inode); - return OK; - -/* Failure conditions always set the errno appropriately */ - -errout_with_inode: - inode_release(inode); -errout: - set_errno(ret); - return ERROR; -} |