regfree.c
上传用户:nvosite88
上传日期:2007-01-17
资源大小:4983k
文件大小:4k
- /* regfree.c - regular expression handling */
- /*
- modification history
- --------------------
- 01e,13apr98,wmd changed name of regfree to wtxRegFree if HOST.
- 01d,30sep96,elp put in share, adapted to be compiled on target side
- (SPR# 6775).
- 01c,10jul96,pad undefined redefinition of malloc (AIX specific).
- 01b,20mar95,p_m moved #include "host.h" on top of includes list, this is
- necessary on Windows platforms.
- changed #include <regex.h> to #include "regex.h".
- 01a,10jan95,jcf created.
- */
- /*
- DESCRIPTION
- This library is *not* the original BSD distribution. Though the changes
- were completely cosmetic (file naming, and such), the user of this library
- is forewarned.
- AUTHOR: Henry Spencer
- */
- /*-
- * 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.
- * 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
- */
- #if defined(LIBC_SCCS) && !defined(lint)
- static char sccsid[] = "@(#)regfree.c 8.3 (Berkeley) 3/20/94";
- #endif /* LIBC_SCCS and not lint */
- #ifdef HOST
- #include "host.h"
- #if defined(RS6000_AIX4) || defined (RS6000_AIX3)
- #undef malloc
- #endif
- #include <sys/types.h>
- #include <stdio.h>
- #include <stdlib.h>
- #else
- #include "vxWorks.h"
- #include "stdio.h"
- #include "stdlib.h"
- #endif /* HOST */
- #include "regex.h"
- #include "regex2.h"
- /*
- - regfree - free everything
- = extern void regfree(regex_t *);
- */
- void
- #ifdef HOST
- wtxRegFree(preg)
- #else
- regfree(preg)
- #endif /* HOST */
- regex_t *preg;
- {
- register struct re_guts *g;
- 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)
- free((char *)g->sets);
- if (g->setbits != NULL)
- free((char *)g->setbits);
- if (g->must != NULL)
- free(g->must);
- free((char *)g);
- }