98 lines
3.1 KiB
C
98 lines
3.1 KiB
C
/* $NetBSD: regfree.c,v 1.12 2000/01/22 22:19:17 mycroft Exp $ */
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/*-
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* Copyright (c) 1992, 1993, 1994 Henry Spencer.
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* Copyright (c) 1992, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Henry Spencer.
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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 the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)regfree.c 8.3 (Berkeley) 3/20/94
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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static char sccsid[] = "@(#)regfree.c 8.3 (Berkeley) 3/20/94";
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#else
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__RCSID("$NetBSD: regfree.c,v 1.12 2000/01/22 22:19:17 mycroft Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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#include "namespace.h"
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#include <sys/types.h>
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#include <assert.h>
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#include <regex.h>
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef __weak_alias
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__weak_alias(regfree,_regfree)
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#endif
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#include "utils.h"
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#include "regex2.h"
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/*
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- regfree - free everything
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= extern void regfree(regex_t *);
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*/
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void
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regfree(preg)
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regex_t *preg;
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{
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struct re_guts *g;
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_DIAGASSERT(preg != NULL);
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_DIAGASSERT(preg->re_magic == MAGIC1);
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if (preg->re_magic != MAGIC1) /* oops */
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return; /* nice to complain, but hard */
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g = preg->re_g;
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if (g == NULL || g->magic != MAGIC2) /* oops again */
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return;
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preg->re_magic = 0; /* mark it invalid */
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g->magic = 0; /* mark it invalid */
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if (g->strip != NULL)
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free(g->strip);
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if (g->sets != NULL)
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free(g->sets);
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if (g->setbits != NULL)
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free(g->setbits);
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if (g->must != NULL)
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free(g->must);
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free(g);
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}
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