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34 * @(#)stat.h 8.12 (Berkeley) 6/16/95
35 * $FreeBSD: src/sys/sys/stat.h,v 1.20 1999/12/29 04:24:47 peter Exp $
41 #include <sys/cdefs.h>
42 #include <sys/types.h>
44 #if !defined(_KERNEL) && __BSD_VISIBLE
46 * XXX We get miscellaneous namespace pollution with this.
50 #include <sys/_timespec.h>
54 * stat structure notes:
56 * NOTE: st_fsmid removed in DragonFly 2.5.x.
59 ino_t st_ino; /* inode's number */
60 nlink_t st_nlink; /* number of hard links */
61 dev_t st_dev; /* inode's device */
62 mode_t st_mode; /* inode protection mode */
64 uid_t st_uid; /* user ID of the file's owner */
65 gid_t st_gid; /* group ID of the file's group */
66 dev_t st_rdev; /* device type */
67 struct timespec st_atim; /* time of last access */
68 struct timespec st_mtim; /* time of last data modification */
69 struct timespec st_ctim; /* time of last file status change */
70 off_t st_size; /* file size, in bytes */
71 blkcnt_t st_blocks; /* blocks allocated for file */
72 u_int32_t __old_st_blksize; /* old ABI compatibility only */
73 u_int32_t st_flags; /* user defined flags for file */
74 u_int32_t st_gen; /* file generation number */
76 blksize_t st_blksize; /* optimal blocksize for I/O */
80 /*#define _ST_FSMID_PRESENT_*/
81 #define _ST_FLAGS_PRESENT_
83 #define st_atime st_atim.tv_sec
84 #define st_mtime st_mtim.tv_sec
85 #define st_ctime st_ctim.tv_sec
87 /* BSD compatibility */
89 #define st_atimespec st_atim
90 #define st_mtimespec st_mtim
91 #define st_ctimespec st_ctim
94 /* Always ensure that these are consistent with <fcntl.h>! */
96 #define S_ISUID 0004000 /* set user id on execution */
99 #define S_ISGID 0002000 /* set group id on execution */
102 #define S_ISTXT 0001000 /* sticky bit */
106 #define S_IRWXU 0000700 /* RWX mask for owner */
109 #define S_IRUSR 0000400 /* R for owner */
112 #define S_IWUSR 0000200 /* W for owner */
115 #define S_IXUSR 0000100 /* X for owner */
119 #define S_IREAD S_IRUSR
120 #define S_IWRITE S_IWUSR
121 #define S_IEXEC S_IXUSR
125 #define S_IRWXG 0000070 /* RWX mask for group */
128 #define S_IRGRP 0000040 /* R for group */
131 #define S_IWGRP 0000020 /* W for group */
134 #define S_IXGRP 0000010 /* X for group */
138 #define S_IRWXO 0000007 /* RWX mask for other */
141 #define S_IROTH 0000004 /* R for other */
144 #define S_IWOTH 0000002 /* W for other */
147 #define S_IXOTH 0000001 /* X for other */
151 #define S_IFMT 0170000 /* type of file mask */
152 #define S_IFIFO 0010000 /* named pipe (fifo) */
153 #define S_IFCHR 0020000 /* character special */
154 #define S_IFDIR 0040000 /* directory */
155 #define S_IFBLK 0060000 /* block special */
156 #define S_IFREG 0100000 /* regular */
157 #define S_IFLNK 0120000 /* symbolic link */
158 #define S_IFSOCK 0140000 /* socket */
159 #define S_ISVTX 0001000 /* save swapped text even after use */
162 #define S_IFDB 0110000 /* record access file */
163 #define S_IFWHT 0160000 /* whiteout */
166 #define S_ISDIR(m) (((m) & 0170000) == 0040000) /* directory */
167 #define S_ISCHR(m) (((m) & 0170000) == 0020000) /* char special */
168 #define S_ISBLK(m) (((m) & 0170000) == 0060000) /* block special */
169 #define S_ISREG(m) (((m) & 0170000) == 0100000) /* regular file */
170 #define S_ISDB(m) (((m) & 0170000) == 0110000) /* record access file */
171 #define S_ISFIFO(m) (((m) & 0170000) == 0010000) /* fifo or socket */
173 #define S_ISLNK(m) (((m) & 0170000) == 0120000) /* symbolic link */
174 #define S_ISSOCK(m) (((m) & 0170000) == 0140000) /* socket */
177 #define S_ISWHT(m) (((m) & 0170000) == 0160000) /* whiteout */
181 * The value of `buf' is a pointer to a `stat' data structure. Since we don't
182 * implement message queues, semaphores, and shared memory objects as distinct
183 * file types, the following macros evaluate to zero.
185 * XXX: Add S_TYPEISTMO() once we grow support for POSIX typed memory objects.
187 #define S_TYPEISMQ(buf) (0) /* message queue */
188 #define S_TYPEISSEM(buf) (0) /* semaphore */
189 #define S_TYPEISSHM(buf) (0) /* shared memory object */
192 #define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */
194 #define ALLPERMS (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
196 #define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
198 #define S_BLKSIZE 512 /* block size used in the stat struct */
201 * Definitions of flags stored in file flags word.
203 * Super-user and owner changeable flags.
205 #define UF_SETTABLE 0x0000ffff /* mask of owner changeable flags */
206 #define UF_NODUMP 0x00000001 /* do not dump file */
207 #define UF_IMMUTABLE 0x00000002 /* file may not be changed */
208 #define UF_APPEND 0x00000004 /* writes to file may only append */
209 #define UF_OPAQUE 0x00000008 /* directory is opaque wrt. union */
210 #define UF_NOUNLINK 0x00000010 /* file may not be removed or renamed */
211 #define UF_UNUSED5 0x00000020 /* (unused) */
212 #define UF_NOHISTORY 0x00000040 /* do not retain history/snapshots */
213 #define UF_CACHE 0x00000080 /* enable data swapcache */
214 #define UF_XLINK 0x00000100 /* cross-link (hardlink) boundary */
217 * Super-user changeable flags.
219 #define SF_SETTABLE 0xffff0000 /* mask of superuser changeable flags */
220 #define SF_ARCHIVED 0x00010000 /* file is archived */
221 #define SF_IMMUTABLE 0x00020000 /* file may not be changed */
222 #define SF_APPEND 0x00040000 /* writes to file may only append */
223 #define SF_NOUNLINK 0x00100000 /* file may not be removed or renamed */
224 #define SF_UNUSED17 0x00200000 /* (used by FreeBSD for snapshots) */
225 #define SF_NOHISTORY 0x00400000 /* do not retain history/snapshots */
226 #define SF_NOCACHE 0x00800000 /* disable data swapcache */
227 #define SF_XLINK 0x01000000 /* cross-link (hardlink) boundary */
231 * Shorthand abbreviations of above.
233 #define OPAQUE (UF_OPAQUE)
234 #define APPEND (UF_APPEND | SF_APPEND)
235 #define IMMUTABLE (UF_IMMUTABLE | SF_IMMUTABLE)
236 #define NOUNLINK (UF_NOUNLINK | SF_NOUNLINK)
239 #endif /* __BSD_VISIBLE */
241 #if __POSIX_VISIBLE >= 200809
243 #define UTIME_OMIT -2
246 #if !defined(_KERNEL) || defined(_KERNEL_VIRTUAL)
249 int chmod(const char *, mode_t);
250 int fchmod(int, mode_t);
251 #if __POSIX_VISIBLE >= 200809
252 int fchmodat(int, const char *, mode_t, int);
253 int futimens(int, const struct timespec *);
254 int utimensat(int, const char *, const struct timespec *, int);
256 int fstat(int, struct stat *);
257 #if __POSIX_VISIBLE >= 199506
258 int lstat(const char * __restrict, struct stat * __restrict);
260 int mkdir(const char *, mode_t);
261 int mkfifo(const char *, mode_t);
262 #if !defined(_MKNOD_DECLARED) && __XSI_VISIBLE
263 int mknod(const char *, mode_t, dev_t);
264 #define _MKNOD_DECLARED
266 int stat(const char * __restrict, struct stat * __restrict);
267 mode_t umask(mode_t);
268 #if __POSIX_VISIBLE >= 200809
269 int fstatat(int, const char * __restrict, struct stat * __restrict, int);
270 int mkdirat(int, const char *, mode_t);
271 int mkfifoat(int, const char *, mode_t);
273 #if __XSI_VISIBLE >= 700
274 int mknodat(int, const char *, mode_t, dev_t);
277 int chflags(const char *, unsigned long);
278 int fchflags(int, unsigned long);
279 int lchflags(const char *, unsigned long);
280 int chflagsat(int, const char *, unsigned long, int);
281 int lchmod(const char *, mode_t);
287 #endif /* !_SYS_STAT_H_ */