7b81254069
According to POSIX the st_size field of struct stat is undefined for fifos and anonymous pipes. Thus we can do anything we want. We save a copy by not being accurate on pipe sizes.
188 lines
6.7 KiB
C
188 lines
6.7 KiB
C
#ifndef _SYS_STAT_H_
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#define _SYS_STAT_H_
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#include <sys/featuretest.h>
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#include <sys/types.h> /* XXX */
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#if defined(_NETBSD_SOURCE)
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#include <sys/time.h>
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#endif
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struct stat {
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big_dev_t st_dev; /* inode's device */
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big_mode_t st_mode; /* inode protection mode */
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big_ino_t st_ino; /* inode's number */
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big_nlink_t st_nlink; /* number of hard links */
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big_uid_t st_uid; /* user ID of the file's owner */
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big_gid_t st_gid; /* group ID of the file's group */
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big_dev_t st_rdev; /* device type */
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#if defined(_NETBSD_SOURCE)
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struct timespec st_atimespec;/* time of last access */
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struct timespec st_mtimespec;/* time of last data modification */
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struct timespec st_ctimespec;/* time of last file status change */
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struct timespec st_birthtimespec; /* time of creation */
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#else
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time_t st_atime; /* time of last access */
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long st_atimensec; /* nsec of last access */
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time_t st_mtime; /* time of last data modification */
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long st_mtimensec; /* nsec of last data modification */
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time_t st_ctime; /* time of last file status change */
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long st_ctimensec; /* nsec of last file status change */
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time_t st_birthtime; /* time of creation */
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long st_birthtimensec; /* nsec of time of creation */
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#endif
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big_off_t st_size; /* file size, in bytes */
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blkcnt_t st_blocks; /* blocks allocated for file */
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blksize_t st_blksize; /* optimal blocksize for I/O */
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u32_t st_flags; /* user defined flags for file */
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u32_t st_gen; /* file generation number */
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u32_t st_spare[2];
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};
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struct minix_prev_stat {
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short st_dev; /* major/minor device number */
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ino_t st_ino; /* i-node number */
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mode_t st_mode; /* file mode, protection bits, etc. */
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nlink_t st_nlink; /* # links; */
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short st_uid; /* uid of the file's owner */
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short int st_gid; /* gid; TEMPORARY HACK: should be gid_t */
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short st_rdev;
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off_t st_size; /* file size */
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time_t st_atime; /* time of last access */
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time_t st_mtime; /* time of last data modification */
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time_t st_ctime; /* time of last file status change */
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};
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#if defined(_NETBSD_SOURCE)
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#define st_atime st_atimespec.tv_sec
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#define st_atimensec st_atimespec.tv_nsec
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#define st_mtime st_mtimespec.tv_sec
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#define st_mtimensec st_mtimespec.tv_nsec
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#define st_ctime st_ctimespec.tv_sec
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#define st_ctimensec st_ctimespec.tv_nsec
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#define st_birthtime st_birthtimespec.tv_sec
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#define st_birthtimensec st_birthtimespec.tv_nsec
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#endif
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#define S_ISUID 0004000 /* set user id on execution */
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#define S_ISGID 0002000 /* set group id on execution */
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#if defined(_NETBSD_SOURCE)
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#define S_ISTXT 0001000 /* sticky bit */
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#endif
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#define S_IRWXU 0000700 /* RWX mask for owner */
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#define S_IRUSR 0000400 /* R for owner */
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#define S_IWUSR 0000200 /* W for owner */
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#define S_IXUSR 0000100 /* X for owner */
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#if defined(_NETBSD_SOURCE)
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#define S_IREAD S_IRUSR
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#define S_IWRITE S_IWUSR
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#define S_IEXEC S_IXUSR
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#endif
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#define S_IRWXG 0000070 /* RWX mask for group */
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#define S_IRGRP 0000040 /* R for group */
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#define S_IWGRP 0000020 /* W for group */
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#define S_IXGRP 0000010 /* X for group */
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#define S_IRWXO 0000007 /* RWX mask for other */
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#define S_IROTH 0000004 /* R for other */
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#define S_IWOTH 0000002 /* W for other */
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#define S_IXOTH 0000001 /* X for other */
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#define _S_IFMT 0170000 /* type of file mask */
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#define _S_IFIFO 0010000 /* named pipe (fifo) */
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#define _S_IFCHR 0020000 /* character special */
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#define _S_IFDIR 0040000 /* directory */
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#define _S_IFBLK 0060000 /* block special */
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#define _S_IFREG 0100000 /* regular */
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#define _S_IFLNK 0120000 /* symbolic link */
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#define _S_IFSOCK 0140000 /* socket */
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#define _S_ISVTX 0001000 /* save swapped text even after use */
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#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
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#define S_IFMT _S_IFMT
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#define S_IFIFO _S_IFIFO
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#define S_IFCHR _S_IFCHR
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#define S_IFDIR _S_IFDIR
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#define S_IFBLK _S_IFBLK
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#define S_IFREG _S_IFREG
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#define S_IFLNK _S_IFLNK
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#define S_ISVTX _S_ISVTX
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#endif
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#if ((_XOPEN_SOURCE - 0) >= 600) || defined(_NETBSD_SOURCE)
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#define S_IFSOCK _S_IFSOCK
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#endif
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#define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR) /* directory */
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#define S_ISCHR(m) (((m) & _S_IFMT) == _S_IFCHR) /* char special */
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#define S_ISBLK(m) (((m) & _S_IFMT) == _S_IFBLK) /* block special */
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#define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG) /* regular file */
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#define S_ISFIFO(m) (((m) & _S_IFMT) == _S_IFIFO) /* fifo */
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#if ((_POSIX_C_SOURCE - 0) >= 200112L) || defined(_XOPEN_SOURCE) || \
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defined(_NETBSD_SOURCE)
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#define S_ISLNK(m) (((m) & _S_IFMT) == _S_IFLNK) /* symbolic link */
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#endif
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#if ((_POSIX_C_SOURCE - 0) >= 200112L) || ((_XOPEN_SOURCE - 0) >= 600) || \
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defined(_NETBSD_SOURCE)
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#define S_ISSOCK(m) (((m) & _S_IFMT) == _S_IFSOCK) /* socket */
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#endif
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#if defined(_NETBSD_SOURCE)
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#define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */
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/* 7777 */
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#define ALLPERMS (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
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/* 0666 */
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#define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
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#define S_BLKSIZE 512 /* block size used in the stat struct */
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/*
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* Definitions of flags stored in file flags word.
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*
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* Super-user and owner changeable flags.
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*/
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#define UF_SETTABLE 0x0000ffff /* mask of owner changeable flags */
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#define UF_NODUMP 0x00000001 /* do not dump file */
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#define UF_IMMUTABLE 0x00000002 /* file may not be changed */
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#define UF_APPEND 0x00000004 /* writes to file may only append */
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#define UF_OPAQUE 0x00000008 /* directory is opaque wrt. union */
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/*
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* Super-user changeable flags.
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*/
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#define SF_SETTABLE 0xffff0000 /* mask of superuser changeable flags */
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#define SF_ARCHIVED 0x00010000 /* file is archived */
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#define SF_IMMUTABLE 0x00020000 /* file may not be changed */
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#define SF_APPEND 0x00040000 /* writes to file may only append */
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#endif /* _NETBSD_SOURCE */
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#if defined(__minix)
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#include <machine/vmparam.h>
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/* Convenient constant to use when st_blocksize field is required. */
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#define MINIX_ST_BLKSIZE PAGE_SIZE
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#endif
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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int chmod(const char *, mode_t);
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int mkdir(const char *, mode_t);
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int mkfifo(const char *, mode_t);
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#ifndef __LIBC12_SOURCE__
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int stat(const char *, struct stat *) __RENAME(__stat50);
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int fstat(int, struct stat *) __RENAME(__fstat50);
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#endif
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mode_t umask(mode_t);
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#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
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int fchmod(int, mode_t);
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#ifndef __LIBC12_SOURCE__
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int lstat(const char *, struct stat *) __RENAME(__lstat50);
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int mknod(const char *, mode_t, dev_t) __RENAME(__mknod50);
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#endif
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#endif /* defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) */
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__END_DECLS
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#endif /* !_SYS_STAT_H_ */
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