1/*	$NetBSD$	*/
2
3/*
4 * Copyright (c) 1997
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that: (1) source code distributions
9 * retain the above copyright notice and this paragraph in its entirety, (2)
10 * distributions including binary code include the above copyright notice and
11 * this paragraph in its entirety in the documentation or other materials
12 * provided with the distribution, and (3) all advertising materials mentioning
13 * features or use of this software display the following acknowledgement:
14 * ``This product includes software developed by the University of California,
15 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
16 * the University nor the names of its contributors may be used to endorse
17 * or promote products derived from this software without specific prior
18 * written permission.
19 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
20 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22 */
23
24#ifndef lint
25static const char rcsid[] =
26    "@(#) Header: /u0/home/explorer/proj/ISC/git-conversion/cvsroot/bind9/contrib/nslint-2.1a3/savestr.c,v 1.1 2001/12/21 04:12:04 marka Exp  (LBL)";
27#endif
28
29#include <sys/types.h>
30
31#ifdef HAVE_MALLOC_H
32#include <malloc.h>
33#endif
34#include <stdio.h>
35#include <stdlib.h>
36
37#include "gnuc.h"
38#ifdef HAVE_OS_PROTO_H
39#include "os-proto.h"
40#endif
41
42#include "savestr.h"
43
44/* A replacement for strdup() that cuts down on malloc() overhead */
45char *
46savestr(register const char *str)
47{
48	register u_int size;
49	register char *p;
50	static char *strptr = NULL;
51	static u_int strsize = 0;
52
53	size = strlen(str) + 1;
54	if (size > strsize) {
55		strsize = 1024;
56		if (strsize < size)
57			strsize = size;
58		strptr = (char *)malloc(strsize);
59		if (strptr == NULL) {
60			fprintf(stderr, "savestr: malloc\n");
61			exit(1);
62		}
63	}
64	(void)strcpy(strptr, str);
65	p = strptr;
66	strptr += size;
67	strsize -= size;
68	return (p);
69}
70