[apple/libc.git] / regex / FreeBSD / regfree.c

/*-
 * Copyright (c) 1992, 1993, 1994 Henry Spencer.
 * Copyright (c) 1992, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Henry Spencer.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)regfree.c	8.3 (Berkeley) 3/20/94
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)regfree.c	8.3 (Berkeley) 3/20/94";
#endif /* LIBC_SCCS and not lint */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/lib/libc/regex/regfree.c,v 1.8 2007/06/11 03:05:54 delphij Exp $");

#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <regex.h>
#include <wchar.h>
#include <wctype.h>

#include "utils.h"
#include "regex2.h"

/*
 - regfree - free everything
 = extern void regfree(regex_t *);
 */
void
regfree(regex_t *preg)
{
	struct re_guts *g;
	int i;

	if (preg->re_magic != MAGIC1)	/* oops */
		return;			/* nice to complain, but hard */

	g = preg->re_g;
	if (g == NULL || g->magic != MAGIC2)	/* oops again */
		return;
	preg->re_magic = 0;		/* mark it invalid */
	g->magic = 0;			/* mark it invalid */

	if (g->strip != NULL)
		free((char *)g->strip);
	if (g->sets != NULL) {
		for (i = 0; i < g->ncsets; i++) {
			free(g->sets[i].ranges);
			free(g->sets[i].wides);
			free(g->sets[i].types);
		}
		free((char *)g->sets);
	}
	if (g->must != NULL)
		free(g->must);
	if (g->charjump != NULL)
		free(&g->charjump[CHAR_MIN]);
	if (g->matchjump != NULL)
		free(g->matchjump);
	free((char *)g);
}
Commit	Line	Data
9385eb3d A	1	/*-
9385eb3d A	2	* Copyright (c) 1992, 1993, 1994 Henry Spencer.
e9ce8d39 A	3	* Copyright (c) 1992, 1993, 1994
	4	* The Regents of the University of California. All rights reserved.
	5	*
	6	* This code is derived from software contributed to Berkeley by
	7	* Henry Spencer.
	8	*
	9	* Redistribution and use in source and binary forms, with or without
	10	* modification, are permitted provided that the following conditions
	11	* are met:
	12	* 1. Redistributions of source code must retain the above copyright
	13	* notice, this list of conditions and the following disclaimer.
	14	* 2. Redistributions in binary form must reproduce the above copyright
	15	* notice, this list of conditions and the following disclaimer in the
	16	* documentation and/or other materials provided with the distribution.
e9ce8d39 A	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
9385eb3d A	32	*
9385eb3d A	33	* @(#)regfree.c 8.3 (Berkeley) 3/20/94
e9ce8d39 A	34	*/
	35
	36	#if defined(LIBC_SCCS) && !defined(lint)
	37	static char sccsid[] = "@(#)regfree.c 8.3 (Berkeley) 3/20/94";
	38	#endif /* LIBC_SCCS and not lint */
9385eb3d	39	#include <sys/cdefs.h>
1f2f436a	40	__FBSDID("$FreeBSD: src/lib/libc/regex/regfree.c,v 1.8 2007/06/11 03:05:54 delphij Exp $");
e9ce8d39 A	41
	42	#include <sys/types.h>
	43	#include <stdio.h>
	44	#include <stdlib.h>
9385eb3d	45	#include <limits.h>
e9ce8d39	46	#include <regex.h>
3d9156a7 A	47	#include <wchar.h>
3d9156a7 A	48	#include <wctype.h>
e9ce8d39 A	49
	50	#include "utils.h"
	51	#include "regex2.h"
	52
	53	/*
	54	- regfree - free everything
	55	= extern void regfree(regex_t *);
	56	*/
	57	void
1f2f436a	58	regfree(regex_t *preg)
e9ce8d39	59	{
9385eb3d	60	struct re_guts *g;
3d9156a7	61	int i;
e9ce8d39 A	62
	63	if (preg->re_magic != MAGIC1) /* oops */
	64	return; /* nice to complain, but hard */
	65
	66	g = preg->re_g;
	67	if (g == NULL \|\| g->magic != MAGIC2) /* oops again */
	68	return;
	69	preg->re_magic = 0; /* mark it invalid */
	70	g->magic = 0; /* mark it invalid */
	71
	72	if (g->strip != NULL)
	73	free((char *)g->strip);
3d9156a7 A	74	if (g->sets != NULL) {
	75	for (i = 0; i < g->ncsets; i++) {
	76	free(g->sets[i].ranges);
	77	free(g->sets[i].wides);
	78	free(g->sets[i].types);
	79	}
e9ce8d39	80	free((char *)g->sets);
3d9156a7	81	}
e9ce8d39 A	82	if (g->must != NULL)
e9ce8d39 A	83	free(g->must);
9385eb3d A	84	if (g->charjump != NULL)
	85	free(&g->charjump[CHAR_MIN]);
	86	if (g->matchjump != NULL)
	87	free(g->matchjump);
e9ce8d39 A	88	free((char *)g);
e9ce8d39 A	89	}