73 lines
2.6 KiB
C
73 lines
2.6 KiB
C
#ifndef _SYS_SYSLIMITS_H_
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#define _SYS_SYSLIMITS_H_
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#include <minix/limits.h>
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#include <sys/featuretest.h>
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/* Values actually implemented by MINIX (Tables 2-4, 2-5, 2-6, and 2-7). */
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/* Some of these old names had better be defined when not POSIX. */
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#define _NO_LIMIT 160 /* arbitrary number; limit not enforced */
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#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
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defined(_NETBSD_SOURCE)
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#if _EM_WSIZE > 2
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#define ARG_MAX 262144 /* # bytes of args + environ for exec() */
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#else
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#define ARG_MAX 4096 /* args + environ on small machines */
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#endif
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#ifndef CHILD_MAX
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#define CHILD_MAX _NO_LIMIT /* max simultaneous processes */
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#endif
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#define GID_MAX CHAR_MAX /* max value for a gid_t */
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#define LINK_MAX SHRT_MAX /* # links a file may have */
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#define MAX_CANON 255 /* size of the canonical input queue */
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#define MAX_INPUT 255 /* size of the type-ahead buffer */
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#define NAME_MAX 60 /* # chars in a file name (actually DIRSZ) */
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#define NGROUPS_MAX 8 /* max. number of supplemental groups */
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#define UID_MAX SHRT_MAX /* max value for a uid_t */
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#ifndef OPEN_MAX
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#define OPEN_MAX __MINIX_OPEN_MAX /* max open files per process */
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#endif
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#define PATH_MAX __MINIX_PATH_MAX /* # chars in a path name */
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#define PIPE_BUF 7168 /* # bytes in atomic write to a pipe */
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#define BC_BASE_MAX INT_MAX /* max ibase/obase values in bc(1) */
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#define BC_DIM_MAX 65535 /* max array elements in bc(1) */
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#define BC_SCALE_MAX INT_MAX /* max scale value in bc(1) */
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#define BC_STRING_MAX INT_MAX /* max const string length in bc(1) */
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#define COLL_WEIGHTS_MAX 2 /* max weights for order keyword */
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#define EXPR_NEST_MAX 32 /* max expressions nested in expr(1) */
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#define LINE_MAX 2048 /* max bytes in an input line */
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#define RE_DUP_MAX 255 /* max RE's in interval notation */
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/*
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* IEEE Std 1003.1c-95, adopted in X/Open CAE Specification Issue 5 Version 2
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*/
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#if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
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defined(_NETBSD_SOURCE)
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#define LOGIN_NAME_MAX 17 /* max login name length incl. NUL */
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#endif
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/*
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* X/Open CAE Specification Issue 5 Version 2
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*/
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#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
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#define IOV_MAX 1024 /* max # of iovec's for readv(2) etc. */
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#define NZERO 20 /* default "nice" */
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#endif /* _XOPEN_SOURCE || _NETBSD_SOURCE */
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#endif /* !_ANSI_SOURCE */
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#ifdef __minix
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#define STREAM_MAX 8 /* == _POSIX_STREAM_MAX */
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#define TZNAME_MAX 6 /* == _POSIX_TZNAME_MAX */
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#define TIME_MAX LONG_MAX
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#endif
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#endif /* !_SYS_SYSLIMITS_H_ */
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