pathconf.h File Reference

POSIX pathname configuration constants (<sys/pathconf.h>) More...

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Enumerations
enum	{   _PC_2_SYMLINKS , _PC_ALLOC_SIZE_MIN , _PC_ASYNC_IO , _PC_CHOWN_RESTRICTED ,   _PC_FILESIZEBITS , _PC_LINK_MAX , _PC_MAX_CANON , _PC_MAX_INPUT ,   _PC_NAME_MAX , _PC_NO_TRUNC , _PC_PATH_MAX , _PC_PIPE_BUF ,   _PC_PRIO_IO , _PC_REC_INCR_XFER_SIZE , _PC_REC_MAX_XFER_SIZE , _PC_REC_MIN_XFER_SIZE ,   _PC_REC_XFER_ALIGN , _PC_SYMLINK_MAX , _PC_SYNC_IO , _PC_TIMESTAMP_RESOLUTION ,   _PC_VDISABLE }
	pathconf() / fpathconf() name constants. More...

Detailed Description

POSIX pathname configuration constants (<sys/pathconf.h>)

Defines the _PC_* name constants used as the second argument to pathconf() and fpathconf() to query per-file configuration limits.

See also

POSIX.1-2017 pathconf()

Definition in file pathconf.h.

Enumeration Type Documentation

anonymous enum

anonymous enum

pathconf() / fpathconf() name constants.

Enumerator
_PC_2_SYMLINKS	Pathname creates a symbolic link.
_PC_ALLOC_SIZE_MIN	Minimum storage actually allocated for data.
_PC_ASYNC_IO	Asynchronous I/O may be performed.
_PC_CHOWN_RESTRICTED	Use of chown() is restricted.
_PC_FILESIZEBITS	Minimum bits to represent maximum file size.
_PC_LINK_MAX	Maximum number of links to the file.
_PC_MAX_CANON	Maximum bytes in a terminal canonical input line.
_PC_MAX_INPUT	Minimum bytes for which space is available in a terminal input queue.
_PC_NAME_MAX	Maximum number of bytes in a file name.
_PC_NO_TRUNC	Filenames longer than NAME_MAX generate an error.
_PC_PATH_MAX	Maximum number of bytes in a pathname.
_PC_PIPE_BUF	Maximum number of bytes written atomically to a pipe.
_PC_PRIO_IO	Prioritized I/O is supported.
_PC_REC_INCR_XFER_SIZE	Recommended increment for efficient I/O transfers.
_PC_REC_MAX_XFER_SIZE	Maximum recommended transfer size for efficient I/O.
_PC_REC_MIN_XFER_SIZE	Minimum recommended transfer size for efficient I/O.
_PC_REC_XFER_ALIGN	Recommended buffer alignment for efficient I/O transfers.
_PC_SYMLINK_MAX	Maximum number of bytes in a symbolic link.
_PC_SYNC_IO	Synchronized I/O may be performed.
_PC_TIMESTAMP_RESOLUTION	Resolution of file timestamps in nanoseconds.
_PC_VDISABLE	Terminal special characters can be disabled.

Definition at line 28 of file pathconf.h.