Stat (system Call) - Stat Structure

Stat Structure

The struct stat structure, also defined in , includes at least the following members:

st_dev
Identifier of device containing file
st_ino
Inode number
st_mode
Protection mode. See also Unix permissions.
st_nlink
Reference count of hard links
st_uid
User identifier of owner
st_gid
Group identifier of owner
st_rdev
Device identifier (if special file)
st_size
Total file size, in bytes
st_atime
Time of last access
st_mtime
Time of last modification
st_ctime
Time of last status change
st_blksize
Block size for filesystem I/O
st_blocks
Number of blocks allocated

The st_mode field is a bit field. It combines the file access modes and also indicates any special file type. There are many macros to work with the different mode flags and file types.

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