Commit | Line | Data |
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1c15e888 C |
1 | /*- |
2 | * Copyright (c) 1979 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
6 | * provided that: (1) source distributions retain this entire copyright | |
7 | * notice and comment, and (2) distributions including binaries display | |
8 | * the following acknowledgement: ``This product includes software | |
9 | * developed by the University of California, Berkeley and its contributors'' | |
10 | * in the documentation or other materials provided with the distribution | |
11 | * and in all advertising materials mentioning features or use of this | |
12 | * software. Neither the name of the University nor the names of its | |
13 | * contributors may be used to endorse or promote products derived | |
14 | * from this software without specific prior written permission. | |
15 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
16 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
17 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
18 | */ | |
19 | ||
20 | #ifndef lint | |
21 | static char sccsid[] = "@(#)NIL.c 1.5 (Berkeley) 4/9/90"; | |
22 | #endif /* not lint */ | |
23 | ||
24 | #include "h00vars.h" | |
25 | ||
26 | char ENIL[] = "Pointer value out of legal range\n"; | |
27 | ||
28 | char * | |
29 | NIL(ptr) | |
30 | char *ptr; /* pointer to struct */ | |
31 | { | |
32 | if (ptr > _maxptr || ptr < _minptr) { | |
33 | ERROR(ENIL, 0); | |
34 | } | |
35 | return ptr; | |
36 | } |