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+/* $NetBSD: regfree.c,v 1.1 2004/08/16 17:24:56 jlam Exp $ */
+
+/*-
+ * 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.
+ * 3. 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
+ */
+
+/*-
+ * Copyright (c) 1992, 1993, 1994 Henry Spencer.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 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
+ */
+
+#include "nbcompat.h"
+
+#if HAVE_SYS_CDEFS_H
+#include <sys/cdefs.h>
+#endif
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)regfree.c 8.3 (Berkeley) 3/20/94";
+#else
+__RCSID("$NetBSD: regfree.c,v 1.1 2004/08/16 17:24:56 jlam Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+/* #include "namespace.h" */
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#if HAVE_ASSERT_H
+#include <assert.h>
+#endif
+#if HAVE_REGEX_H
+#include <regex.h>
+#endif
+#if HAVE_STDIO_H
+#include <stdio.h>
+#endif
+#if HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#if 0
+#ifdef __weak_alias
+__weak_alias(regfree,_regfree)
+#endif
+#endif
+
+#include "utils.h"
+#include "regex2.h"
+
+#ifndef _DIAGASSERT
+#define _DIAGASSERT(cond) assert(cond)
+#endif
+
+/*
+ - regfree - free everything
+ = extern void regfree(regex_t *);
+ */
+void
+regfree(preg)
+regex_t *preg;
+{
+ struct re_guts *g;
+
+ _DIAGASSERT(preg != NULL);
+
+ _DIAGASSERT(preg->re_magic == MAGIC1);
+ 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(g->strip);
+ if (g->sets != NULL)
+ free(g->sets);
+ if (g->setbits != NULL)
+ free(g->setbits);
+ if (g->must != NULL)
+ free(g->must);
+ free(g);
+}