1 /* $Source: /u/mark/src/pax/RCS/limits.h,v $
5 * limits.h - POSIX compatible defnitions for some of <limits.h>
9 * We need to include <limits.h> if this system is being compiled with an
10 * ANSI standard C compiler, or if we are running on a POSIX confomrming
11 * system. If the manifest constant _POSIX_SOURCE is not defined when
12 * <limits.h> is included, then none of the POSIX constants are defined
13 * and we need to define them here. It's a bit wierd, but it works.
15 * These values where taken from the IEEE P1003.1 standard, draft 12.
16 * All of the values below are the MINIMUM values allowed by the standard.
17 * Not all values are used by the PAX program, but they are included for
18 * completeness, and for support of future enhancements. Please see
19 * section 2.9 of the draft standard for more information on the following
24 * Mark H. Colburn, NAPS International (mark@jhereg.mn.org)
26 * Sponsored by The USENIX Association for public distribution.
28 * Copyright (c) 1989 Mark H. Colburn.
29 * All rights reserved.
31 * Redistribution and use in source and binary forms are permitted
32 * provided that the above copyright notice and this paragraph are
33 * duplicated in all such forms and that any documentation,
34 * advertising materials, and other materials related to such
35 * distribution and use acknowledge that the software was developed
36 * by Mark H. Colburn and sponsored by The USENIX Association.
38 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
39 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
40 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
48 #if defined(__STDC__) || defined(_POSIX_SOURCE)
57 #define MAX_INPUT 256 /* Max numbef of bytes in terminal input */
58 #define NGROUPS_MAX 1 /* Max number of suplemental group id's */
59 #define PASS_MAX 8 /* Max number of bytes in a password */
60 #define PID_MAX 30000 /* Max value for a process ID */
61 #define UID_MAX 32000 /* Max value for a user or group ID */
62 #define ARG_MAX 4096 /* Nax number of bytes passed to exec */
63 #define CHILD_MAX 6 /* Max number of simultaneous processes */
64 #define MAX_CANON 256 /* Max numbef of bytes in a cononical queue */
65 #define OPEN_MAX 16 /* Nax number of open files per process */
66 #define NAME_MAX 14 /* Max number of bytes in a file name */
67 #define PATH_MAX 255 /* Max number of bytes in pathname */
68 #define LINK_MAX 8 /* Max value of a file's link count */
69 #define PIPE_BUF 512 /* Max number of bytes for pipe reads */
71 #endif /* _POSIX_SOURCE */
72 #endif /* _PAX_LIMITS_H */