/**************************************************************************** * include/sys/stat.h * * Copyright (C) 2007-2009, 2012 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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. * ****************************************************************************/ #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). * * LTTT ...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 12-14: File type bits * Bit 15: Symbolic link */ #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 0 /* "Sticky" bit (not used) */ #define S_ISGID 0 /* Set group ID bit (not used)*/ #define S_ISUID 0 /* Set UID bit (not used) */ #define S_IFIFO 0 /* Bits 12-14: File type bits (not all used) */ #define S_IFCHR (1 << 12) #define S_IFDIR (2 << 12) #define S_IFBLK (3 << 12) #define S_IFREG (4 << 12) #define S_IFSOCK 0 #define S_IFMQ (5 << 12) #define S_IFSEM (6 << 12) #define S_IFSHM (7 << 12) #define s_IFTGT (7 << 12) /* May be the target of a symbolic link */ #define S_IFLNK (1 << 15) /* Bit 15: Symbolic link */ #define S_IFMT (15 << 15) /* Bits 12-15: Full file type */ /* File type macros that operate on an instance of mode_t */ #define S_ISLNK(m) (((m) & S_IFLNK) != 0) #define S_ISFIFO(m) (0) #define S_ISCHR(m) (((m) & s_IFTGT) == S_IFCHR) #define S_ISDIR(m) (((m) & s_IFTGT) == S_IFDIR) #define S_ISBLK(m) (((m) & s_IFTGT) == S_IFBLK) #define S_ISREG(m) (((m) & s_IFTGT) == S_IFREG) #define S_ISSOCK(m) (0) #define S_ISMQ(m) (((m) & s_IFTGT) == S_IFMQ) #define S_ISSEM(m) (((m) & s_IFTGT) == S_IFSEM) #define S_ISSHM(m) (((m) & s_IFTGT) == S_IFSHM) /**************************************************************************** * 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 */ mode_t st_mode; /* File type, attributes, and access mode bits */ off_t st_size; /* Size of file/directory, in bytes */ blksize_t st_blksize; /* Block size used for filesystem I/O */ blkcnt_t st_blocks; /* Number of blocks allocated */ time_t st_atime; /* Time of last access */ time_t st_mtime; /* Time of last modification */ time_t st_ctime; /* Time of last status change */ /* 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 fstat(int fd, FAR struct stat *buf); #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __INCLUDE_SYS_STAT_H */