changed dns to dns-projects to divide scripts and projects
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dns-projects/nslint-2.1a8/savestr.c
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dns-projects/nslint-2.1a8/savestr.c
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/*
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* Copyright (c) 2006, 2007
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef lint
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static const char rcsid[] =
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"@(#) $Id: savestr.c,v 1.3 2007/03/04 18:18:09 leres Exp $ (LBL)";
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#endif
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "gnuc.h"
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#ifdef HAVE_OS_PROTO_H
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#include "os-proto.h"
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#endif
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#include "savestr.h"
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/* A replacement for strdup() that cuts down on malloc() overhead */
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char *
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savestr(const char *str)
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{
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u_int size;
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char *p;
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static char *strptr = NULL;
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static u_int strsize = 0;
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size = strlen(str) + 1;
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if (size > strsize) {
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strsize = 1024;
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if (strsize < size)
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strsize = size;
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strptr = (char *)malloc(strsize);
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if (strptr == NULL) {
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fprintf(stderr, "savestr: malloc\n");
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exit(1);
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}
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}
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(void)strcpy(strptr, str);
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p = strptr;
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strptr += size;
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strsize -= size;
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return (p);
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}
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