limits.h File Reference

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Macros
#define	NR_OPEN   1024
#define	NGROUPS_MAX   65536 /* supplemental group IDs are available */
#define	ARG_MAX   131072 /* # bytes of args + environ for exec() */
#define	LINK_MAX   127 /* # links a file may have */
#define	MAX_CANON   255 /* size of the canonical input queue */
#define	MAX_INPUT   255 /* size of the type-ahead buffer */
#define	NAME_MAX   255 /* # chars in a file name */
#define	PATH_MAX   4096 /* # chars in a path name including nul */
#define	PIPE_BUF   4096 /* # bytes in atomic write to a pipe */
#define	XATTR_NAME_MAX   255 /* # chars in an extended attribute name */
#define	XATTR_SIZE_MAX   65536 /* size of an extended attribute value (64k) */
#define	XATTR_LIST_MAX   65536 /* size of extended attribute namelist (64k) */
#define	RTSIG_MAX   32

Macro Definition Documentation

ARG_MAX

#define ARG_MAX   131072 /* # bytes of args + environ for exec() */

LINK_MAX

#define LINK_MAX   127 /* # links a file may have */

MAX_CANON

#define MAX_CANON   255 /* size of the canonical input queue */

MAX_INPUT

#define MAX_INPUT   255 /* size of the type-ahead buffer */

NAME_MAX

#define NAME_MAX   255 /* # chars in a file name */

NGROUPS_MAX

#define NGROUPS_MAX   65536 /* supplemental group IDs are available */

NR_OPEN

#define NR_OPEN   1024

PATH_MAX

#define PATH_MAX   4096 /* # chars in a path name including nul */

PIPE_BUF

#define PIPE_BUF   4096 /* # bytes in atomic write to a pipe */

RTSIG_MAX

#define RTSIG_MAX   32

XATTR_LIST_MAX

#define XATTR_LIST_MAX   65536 /* size of extended attribute namelist (64k) */

XATTR_NAME_MAX

#define XATTR_NAME_MAX   255 /* # chars in an extended attribute name */

XATTR_SIZE_MAX

#define XATTR_SIZE_MAX   65536 /* size of an extended attribute value (64k) */