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