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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _LINUX_LIMITS_H #define _LINUX_LIMITS_H #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 #endif