!768 feature: C库补充access、remove接口

Merge pull request !768 from Zhaotianyu/20220806fs_add
This commit is contained in:
openharmony_ci 2022-08-11 11:05:50 +00:00 committed by Gitee
commit ae692bfbc4
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GPG Key ID: 173E9B9CA92EEF8F
3 changed files with 72 additions and 137 deletions

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@ -28,22 +28,20 @@
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define _GNU_SOURCE
#include "los_config.h"
#include "stdarg.h"
#include "dirent.h"
#include "sys/mount.h"
#include "sys/statfs.h"
#include "sys/stat.h"
#include "unistd.h"
#include <errno.h>
#include <stdarg.h>
#include <dirent.h>
#include <sys/mount.h>
#include <sys/statfs.h>
#include <sys/stat.h>
#include <unistd.h>
#ifdef LOSCFG_LIBC_MUSL_FS
#include "los_fs.h"
#else
#include "sys/stat.h"
#endif
#ifdef LOSCFG_LIBC_MUSL_FS
int mount(const char *source, const char *target,
const char *filesystemtype, unsigned long mountflags,
const void *data)
@ -161,6 +159,23 @@ ssize_t pwrite(int fd, const void *buf, size_t nbyte, off_t offset)
return LOS_Pwrite(fd, buf, nbyte, offset);
}
int access(const char *path, int mode)
{
struct stat st;
if (stat(path, &st) < 0) {
return -1;
}
if ((st.st_mode & S_IFDIR) || (st.st_mode & S_IFREG)) {
return 0;
}
if ((mode & W_OK) && !(st.st_mode & S_IWRITE)) {
return -1;
}
return 0;
}
#else /* #ifdef LOSCFG_FS_VFS */
int mount(const char *source, const char *target,
@ -275,4 +290,9 @@ ssize_t pwrite(int fd, const void *buf, size_t nbyte, off_t offset)
return -1;
}
int access(const char *path, int mode)
{
return -1;
}
#endif

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@ -1,123 +0,0 @@
/*
* Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
*
* 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 of the copyright holder 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 HOLDER 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.
*/
#ifndef _ADAPT_SYS_STAT_H
#define _ADAPT_SYS_STAT_H
#include <sys/features.h>
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
#define S_IFMT 0170000
#define S_IFDIR 0040000
#define S_IFCHR 0020000
#define S_IFBLK 0060000
#define S_IFREG 0100000
#define S_IFIFO 0010000
#define S_IFLNK 0120000
#define S_IFSOCK 0140000
#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)
#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)
#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)
#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)
#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)
#define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK)
#ifndef S_IRUSR
#define S_ISUID 04000
#define S_ISGID 02000
#define S_ISVTX 01000
#define S_IRUSR 0400
#define S_IWUSR 0200
#define S_IXUSR 0100
#define S_IRWXU 0700
#define S_IRGRP 0040
#define S_IWGRP 0020
#define S_IXGRP 0010
#define S_IRWXG 0070
#define S_IROTH 0004
#define S_IWOTH 0002
#define S_IXOTH 0001
#define S_IRWXO 0007
#endif
#define st_atime st_atim.tv_sec
#define st_mtime st_mtim.tv_sec
#define st_ctime st_ctim.tv_sec
struct stat {
dev_t st_dev;
int __st_dev_padding;
long __st_ino_truncated;
mode_t st_mode;
nlink_t st_nlink;
uid_t st_uid;
gid_t st_gid;
dev_t st_rdev;
int __st_rdev_padding;
off_t st_size;
blksize_t st_blksize;
blkcnt_t st_blocks;
struct {
long tv_sec;
long tv_nsec;
} __st_atim32, __st_mtim32, __st_ctim32;
ino_t st_ino;
struct timespec st_atim;
struct timespec st_mtim;
struct timespec st_ctim;
};
int stat(const char *__restrict, struct stat *__restrict);
int fstat(int, struct stat *);
int mkdir(const char *, mode_t);
#if defined(_GNU_SOURCE)
#define stat64 stat
#define fstat64 fstat
#define blkcnt64_t blkcnt_t
#define fsblkcnt64_t fsblkcnt_t
#define fsfilcnt64_t fsfilcnt_t
#define ino64_t ino_t
#define off64_t off_t
#endif
#ifdef __cplusplus
}
#endif
#endif /* !_ADAPT_SYS_STAT_H */

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@ -27,16 +27,17 @@
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define _GNU_SOURCE
#include "los_config.h"
#include "stdio.h"
#include "stdarg.h"
#include <errno.h>
#include <stdio.h>
#include <stdarg.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#ifdef LOSCFG_LIBC_NEWLIB_FS
#include "los_fs.h"
#else
#include "sys/stat.h"
#endif
#ifdef LOSCFG_LIBC_NEWLIB_FS
@ -167,6 +168,33 @@ ssize_t pwrite(int fd, const void *buf, size_t nbyte, off_t offset)
return LOS_Pwrite(fd, buf, nbyte, offset);
}
int access(const char *path, int mode)
{
struct stat st;
if (stat(path, &st) < 0) {
return -1;
}
if ((st.st_mode & S_IFDIR) || (st.st_mode & S_IFREG)) {
return 0;
}
if ((mode & W_OK) && !(st.st_mode & S_IWRITE)) {
return -1;
}
return 0;
}
int remove(const char *filename)
{
int ret = unlink(filename);
if (ret == -EISDIR) {
ret = rmdir(filename);
}
return ret;
}
#else /* #ifdef LOSCFG_FS_VFS */
int _open(const char *path, int oflag, ...)
@ -209,4 +237,14 @@ int _stat(const char *path, struct stat *buf)
return -1;
}
int access(const char *path, int mode)
{
return -1;
}
int remove(const char *filename)
{
return -1;
}
#endif