4 #define uint_t unsigned int
7 #include "sys/stdtypes.h"
13 dev_t st_dev; /* ID of device containing a directory*/
14 /* entry for this file. File serial*/
15 /* no + device ID uniquely identify */
16 /* the file within the system */
17 ino_t st_ino; /* File serial number */
18 mode_t st_mode; /* File mode; see #define's below */
19 nlink_t st_nlink; /* Number of links */
20 uid_t st_uid; /* User ID of the file's owner */
21 gid_t st_gid; /* Group ID of the file's group */
22 dev_t st_rdev; /* ID of device */
23 /* This entry is defined only for */
24 /* character or block special files */
25 off_t st_size; /* File size in bytes */
26 time_t st_atime; /* Time of last access */
28 time_t st_mtime; /* Time of last data modification */
30 time_t st_ctime; /* Time of last file status change */
32 /* Time measured in seconds since */
33 /* 00:00:00 GMT, Jan. 1, 1970 */
34 uint_t st_blksize; /* Size of block in file */
35 int st_blocks; /* blocks allocated for file */
36 uint_t st_flags; /* user defined flags for file */
37 uint_t st_gen; /* file generation number */
42 #define S_IREAD S_IRUSR /* read permission, owner */
43 #define S_IWRITE S_IWUSR /* write permission, owner */
44 #define S_IEXEC S_IXUSR /* execute/search permission, owner */
48 #define S_IFBLK 0060000
49 #define S_IFCHR 0020000
50 #define S_IFDIR 0040000
51 #define S_IFIFO 0010000
52 #define S_IFLNK 0120000
53 #define S_IFMT 00170000
54 #define S_IFREG 0100000
55 #define S_IFSOCK 0140000
56 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
57 #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
58 #define S_ISVTX 0001000
61 #define S_IRGRP 00040 /* read permission: group */
62 #define S_IROTH 00004 /* read permission: other */
63 #define S_IRUSR 00400 /* read permission: owner */
64 #define S_IRWXG 00070 /* read, write, execute: group */
65 #define S_IRWXO 00007 /* read, write, execute: other */
66 #define S_IRWXU 00700 /* read, write, execute: owner */
67 #define S_ISBLK(mode) ((mode&0xF000) == 0x6000)
68 #define S_ISCHR(mode) ((mode&0xF000) == 0x2000)
69 #define S_ISDIR(mode) ((mode&0xF000) == 0x4000)
70 #define S_ISFIFO(mode) ((mode&0xF000) == 0x1000)
71 #define S_ISGID 0x400 /* set group id on execution */
72 #define S_ISREG(mode) ((mode&0xF000) == 0x8000)
73 #define S_ISUID 0x800 /* set user id on execution */
74 #define S_IWGRP 00020 /* write permission: group */
75 #define S_IWOTH 00002 /* write permission: other */
76 #define S_IWUSR 00200 /* write permission: owner */
77 #define S_IXGRP 00010 /* execute permission: group */
78 #define S_IXOTH 00001 /* execute permission: other */
79 #define S_IXUSR 00100 /* execute permission: owner */
81 int chmod(const char * path, mode_t mode);
82 int fstat(int filedes, struct stat *buf);
83 int mkdir(const char *path, mode_t mode);
84 int mkfifo(const char * path, mode_t mode);
85 int stat(const char *file_name, struct stat *buf);
86 mode_t umask(mode_t cmask);