Update libressl README.DRAGONFLY for v2.4.4
[dragonfly.git] / games / trek / utility.c
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1 /*-
2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
29 * @(#)utility.c 8.1 (Berkeley) 5/31/93
30 * $FreeBSD: src/games/trek/utility.c,v 1.5 1999/11/30 03:49:55 billf Exp $
31 * $DragonFly: src/games/trek/utility.c,v 1.4 2006/09/07 21:19:45 pavalos Exp $
34 #include <errno.h>
35 #include <stdarg.h>
36 #include "trek.h"
39 ** ASSORTED UTILITY ROUTINES
43 ** BLOCK MOVE
45 ** Moves a block of storage of length `l' bytes from the data
46 ** area pointed to by `a' to the area pointed to by `b'.
47 ** Returns the address of the byte following the `b' field.
48 ** Overflow of `b' is not tested.
51 char *
52 bmove(const void *a, void *b, size_t l)
54 return((char *)memcpy(b, a, l) + l);
59 ** STRING EQUALITY TEST
60 ** null-terminated strings `a' and `b' are tested for
61 ** absolute equality.
62 ** returns one if equal, zero otherwise.
65 bool
66 sequal(const char *a, const char *b)
68 return(!strcmp(a, b));
73 ** SYSTEM ERROR
76 void
77 syserr(const char *fmt, ...)
79 va_list ap;
81 va_start(ap, fmt);
82 printf("\n\07TREK SYSERR: ");
83 vprintf(fmt, ap);
84 printf("\n");
85 if (errno)
86 printf("\tsystem error %d\n", errno);
87 va_end(ap);
88 exit(1);