1139922Stjr/*-
2139922Stjr * Copyright (c) 2004-2005 Tim J. Robbins.
3139922Stjr * All rights reserved.
4139922Stjr *
5139922Stjr * Redistribution and use in source and binary forms, with or without
6139922Stjr * modification, are permitted provided that the following conditions
7139922Stjr * are met:
8139922Stjr * 1. Redistributions of source code must retain the above copyright
9139922Stjr *    notice, this list of conditions and the following disclaimer.
10139922Stjr * 2. Redistributions in binary form must reproduce the above copyright
11139922Stjr *    notice, this list of conditions and the following disclaimer in the
12139922Stjr *    documentation and/or other materials provided with the distribution.
13139922Stjr *
14139922Stjr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15139922Stjr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16139922Stjr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17139922Stjr * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18139922Stjr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19139922Stjr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20139922Stjr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21139922Stjr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22139922Stjr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23139922Stjr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24139922Stjr * SUCH DAMAGE.
25139922Stjr */
26139922Stjr
27139922Stjr#include <sys/cdefs.h>
28139922Stjr__FBSDID("$FreeBSD$");
29139922Stjr
30139922Stjr#include <langinfo.h>
31139922Stjr#include <regex.h>
32139922Stjr#include <stdlib.h>
33139922Stjr
34139922Stjrint
35139922Stjrrpmatch(const char *response)
36139922Stjr{
37139922Stjr	regex_t yes, no;
38139922Stjr	int ret;
39139922Stjr
40139922Stjr	if (regcomp(&yes, nl_langinfo(YESEXPR), REG_EXTENDED|REG_NOSUB) != 0)
41139922Stjr		return (-1);
42139922Stjr	if (regcomp(&no, nl_langinfo(NOEXPR), REG_EXTENDED|REG_NOSUB) != 0) {
43139922Stjr		regfree(&yes);
44139922Stjr		return (-1);
45139922Stjr	}
46139922Stjr	if (regexec(&yes, response, 0, NULL, 0) == 0)
47139922Stjr		ret = 1;
48139922Stjr	else if (regexec(&no, response, 0, NULL, 0) == 0)
49139922Stjr		ret = 0;
50139922Stjr	else
51139922Stjr		ret = -1;
52139922Stjr	regfree(&yes);
53139922Stjr	regfree(&no);
54139922Stjr	return (ret);
55139922Stjr}
56