xref: /freebsd/contrib/mandoc/test-getsubopt.c (revision af23369a6deaaeb612ab266eb88b8bb8d560c322)
1 /*	$Id: test-getsubopt.c,v 1.6 2018/08/15 14:37:41 schwarze Exp $	*/
2 /*
3  * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #include <stdlib.h>
19 
20 /*
21  * NetBSD declared this function in the wrong header before August 2018.
22  * No harm is done by allowing that, too:
23  * The only file using it, main.c, also includes unistd.h, anyway.
24  */
25 #include <unistd.h>
26 
27 int
28 main(void)
29 {
30 	char buf[] = "k=v";
31 	char *options = buf;
32 	char token0[] = "k";
33 	char *const tokens[] = { token0, NULL };
34 	char *value = NULL;
35 	return ! (getsubopt(&options, tokens, &value) == 0
36 	    && value == buf+2 && options == buf+3);
37 }
38