1#include <sys/types.h>
2#include <stdio.h>
3#include <stdlib.h>
4#include <regex.h>
5
6#include "utils.h"
7#include "regex2.h"
8
9/*
10 - regfree - free everything
11 = extern void regfree(regex_t *);
12 */
13void
14regfree(preg)
15regex_t *preg;
16{
17	register struct re_guts *g;
18
19	if (preg->re_magic != MAGIC1)	/* oops */
20		return;			/* nice to complain, but hard */
21
22	g = preg->re_g;
23	if (g == NULL || g->magic != MAGIC2)	/* oops again */
24		return;
25	preg->re_magic = 0;		/* mark it invalid */
26	g->magic = 0;			/* mark it invalid */
27
28	if (g->strip != NULL)
29		free((char *)g->strip);
30	if (g->sets != NULL)
31		free((char *)g->sets);
32	if (g->setbits != NULL)
33		free((char *)g->setbits);
34	if (g->must != NULL)
35		free(g->must);
36	free((char *)g);
37}
38