ref: 28d864953c3d6a879b5c6d81524128851621d654
dir: /sys/src/ape/cmd/pax/limits.h/
/* $Source: /u/mark/src/pax/RCS/limits.h,v $ * * $Revision: 1.2 $ * * limits.h - POSIX compatible defnitions for some of <limits.h> * * DESCRIPTION * * We need to include <limits.h> if this system is being compiled with an * ANSI standard C compiler, or if we are running on a POSIX confomrming * system. If the manifest constant _POSIX_SOURCE is not defined when * <limits.h> is included, then none of the POSIX constants are defined * and we need to define them here. It's a bit wierd, but it works. * * These values where taken from the IEEE P1003.1 standard, draft 12. * All of the values below are the MINIMUM values allowed by the standard. * Not all values are used by the PAX program, but they are included for * completeness, and for support of future enhancements. Please see * section 2.9 of the draft standard for more information on the following * constants. * * AUTHOR * * Mark H. Colburn, NAPS International ([email protected]) * * Sponsored by The USENIX Association for public distribution. * * Copyright (c) 1989 Mark H. Colburn. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that the above copyright notice and this paragraph are * duplicated in all such forms and that any documentation, * advertising materials, and other materials related to such * distribution and use acknowledge that the software was developed * by Mark H. Colburn and sponsored by The USENIX Association. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ #ifndef _PAX_LIMITS_H #define _PAX_LIMITS_H /* Headers */ #if defined(__STDC__) || defined(_POSIX_SOURCE) # include <limits.h> #endif /* Defines */ #ifndef _POSIX_SOURCE #define MAX_INPUT 256 /* Max numbef of bytes in terminal input */ #define NGROUPS_MAX 1 /* Max number of suplemental group id's */ #define PASS_MAX 8 /* Max number of bytes in a password */ #define PID_MAX 30000 /* Max value for a process ID */ #define UID_MAX 32000 /* Max value for a user or group ID */ #define ARG_MAX 4096 /* Nax number of bytes passed to exec */ #define CHILD_MAX 6 /* Max number of simultaneous processes */ #define MAX_CANON 256 /* Max numbef of bytes in a cononical queue */ #define OPEN_MAX 16 /* Nax number of open files per process */ #define NAME_MAX 14 /* Max number of bytes in a file name */ #define PATH_MAX 255 /* Max number of bytes in pathname */ #define LINK_MAX 8 /* Max value of a file's link count */ #define PIPE_BUF 512 /* Max number of bytes for pipe reads */ #endif /* _POSIX_SOURCE */ #endif /* _PAX_LIMITS_H */