/**************************************************************************** * include/sys/stat.h * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ #ifndef __INCLUDE_SYS_STAT_H #define __INCLUDE_SYS_STAT_H /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* mode_t bit settings (most of these do not apply to NuttX). This assumes * that the full size of a mode_t is 16-bits. (However, mode_t must be size * 'int' because it is promoted to size int when passed in varargs). * * TTTT ...U UUGG GOOO * * Bits 0-2: Permissions for others * Bits 3-5: Group permissions * Bits 6-8: Owner permissions * Bits 9-11: Not used * Bits 12-15: File type bits */ #define S_IXOTH (1 << 0) /* Bits 0-2: Permissions for others: RWX */ #define S_IWOTH (1 << 1) #define S_IROTH (1 << 2) #define S_IRWXO (7 << 0) #define S_IXGRP (1 << 3) /* Bits 3-5: Group permissions: RWX */ #define S_IWGRP (1 << 4) #define S_IRGRP (1 << 5) #define S_IRWXG (7 << 3) #define S_IXUSR (1 << 6) /* Bits 6-8: Owner permissions: RWX */ #define S_IWUSR (1 << 7) #define S_IRUSR (1 << 8) #define S_IRWXU (7 << 6) #define S_ISVTX (1 << 9) /* "Sticky" bit (not used) */ #define S_ISGID (1 << 10) /* Set group ID bit (not used)*/ #define S_ISUID (1 << 11) /* Set UID bit (not used) */ #define S_IFIFO (1 << 12) /* Bits 12-15: File type bits (not all used) */ #define S_IFCHR (2 << 12) #define S_IFSEM (3 << 12) #define S_IFDIR (4 << 12) #define S_IFMQ (5 << 12) #define S_IFBLK (6 << 12) #define S_IFSHM (7 << 12) #define S_IFREG (8 << 12) #define S_IFMTD (9 << 12) #define S_IFLNK (10 << 12) #define S_IFSOCK (12 << 12) #define S_IFMT (15 << 12) /* File type macros that operate on an instance of mode_t */ #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) #define S_ISSEM(m) (((m) & S_IFMT) == S_IFSEM) #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) #define S_ISMQ(m) (((m) & S_IFMT) == S_IFMQ) #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) #define S_ISSHM(m) (((m) & S_IFMT) == S_IFSHM) #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) #define S_ISMTD(m) (((m) & S_IFMT) == S_IFMTD) #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) /* These are from POSIX.1b. If the objects are not implemented using separate * distinct file types, the macros always will evaluate to zero. Unlike the * other S_* macros the following three take a pointer to a `struct stat' * object as the argument. */ #define S_TYPEISSEM(buf) S_ISSEM((buf)->st_mode) #define S_TYPEISMQ(buf) S_ISMQ((buf)->st_mode) #define S_TYPEISSHM(buf) S_ISSHM((buf)->st_mode) /* The following macros are required by POSIX to acheive backward * compatibility with earlier versions of struct stat. */ #define st_atime st_atim.tv_sec #define st_ctime st_ctim.tv_sec #define st_mtime st_mtim.tv_sec /**************************************************************************** * Type Definitions ****************************************************************************/ /* This is the simplified struct stat as returned by stat() and fstat(). * This structure provides information about a specific file or directory in * the file system. */ struct stat { /* Required, standard fields */ dev_t st_dev; /* Device ID of device containing file */ ino_t st_ino; /* File serial number */ mode_t st_mode; /* File type, attributes, and access mode bits */ nlink_t st_nlink; /* Number of hard links to the file */ uid_t st_uid; /* User ID of file */ gid_t st_gid; /* Group ID of file */ dev_t st_rdev; /* Device ID (if file is character or block special) */ off_t st_size; /* Size of file/directory, in bytes */ struct timespec st_atim; /* Time of last access */ struct timespec st_mtim; /* Time of last modification */ struct timespec st_ctim; /* Time of last status change */ blksize_t st_blksize; /* Block size used for filesystem I/O */ blkcnt_t st_blocks; /* Number of blocks allocated */ /* Internal fields. These are part this specific implementation and * should not referenced by application code for portability reasons. */ #ifdef CONFIG_PSEUDOFS_SOFTLINKS uint8_t st_count; /* Used internally to limit traversal of links */ #endif }; /**************************************************************************** * Public Function Prototypes ****************************************************************************/ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif int mkdir(FAR const char *pathname, mode_t mode); int mkfifo(FAR const char *pathname, mode_t mode); int stat(FAR const char *path, FAR struct stat *buf); int lstat(FAR const char *path, FAR struct stat *buf); int fstat(int fd, FAR struct stat *buf); int chmod(FAR const char *path, mode_t mode); int fchmod(int fd, mode_t mode); mode_t umask(mode_t mask); #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __INCLUDE_SYS_STAT_H */