| _PC_LINK_MAX |
| | The maximum file link count. |
| _PC_MAX_CANON |
| | The maximum number of bytes in terminal canonical input line. |
| _PC_MAX_INPUT |
| | The minimum maximum number of bytes for which space is available in a terminal input queue. |
| _PC_NAME_MAX |
| | The maximum number of bytes in a file name. |
| _PC_PATH_MAX |
| | The maximum number of bytes in a pathname. |
| _PC_PIPE_BUF |
| | The maximum number of bytes which will be written atomically to a pipe. |
| _PC_CHOWN_RESTRICTED |
| | Return 1 if appropriate privilege is required for the chown(2) system call, otherwise 0. -p1003.1-2001 requires appropriate privilege in all cases, but this behavior was optional in prior editions of the standard. |
| _PC_NO_TRUNC |
| | Return greater than zero if attempts to use pathname components longer than
.Brq Dv NAME_MAX will result in an [ENAMETOOLONG] error; otherwise, such components will be truncated to
.Brq Dv NAME_MAX . -p1003.1-2001 requires the error in all cases, but this behavior was optional in prior editions of the standard, and some non- POSIX -compliant file systems do not support this behavior. |
| _PC_VDISABLE |
| | Returns the terminal character disabling value. |
| _PC_ASYNC_IO |
| | Return 1 if asynchronous I/O is supported, otherwise 0. |
| _PC_PRIO_IO |
| | Returns 1 if prioritised I/O is supported for this file, otherwise 0. |
| _PC_SYNC_IO |
| | Returns 1 if synchronised I/O is supported for this file, otherwise 0. |
| _PC_ALLOC_SIZE_MIN |
| | Minimum number of bytes of storage allocated for any portion of a file. |
| _PC_FILESIZEBITS |
| | Number of bits needed to represent the maximum file size. |
| _PC_REC_INCR_XFER_SIZE |
| | Recommended increment for file transfer sizes between _PC_REC_MIN_XFER_SIZE and _PC_REC_MAX_XFER_SIZE. |
| _PC_REC_MAX_XFER_SIZE |
| | Maximum recommended file transfer size. |
| _PC_REC_MIN_XFER_SIZE |
| | Minimum recommended file transfer size. |
| _PC_REC_XFER_ALIGN |
| | Recommended file transfer buffer alignment. |
| _PC_SYMLINK_MAX |
| | Maximum number of bytes in a symbolic link. |
| _PC_ACL_EXTENDED |
| | Returns 1 if an Access Control List (ACL) can be set on the specified file, otherwise 0. |
| _PC_ACL_PATH_MAX |
| | Maximum number of ACL entries per file. |
| _PC_CAP_PRESENT |
| | Returns 1 if a capability state can be set on the specified file, otherwise 0. |
| _PC_INF_PRESENT |
| | Returns 1 if an information label can be set on the specified file, otherwise 0. |
| _PC_MAC_PRESENT |
| | Returns 1 if a Mandatory Access Control (MAC) label can be set on the specified file, otherwise 0. |
|
