1 /*	$OpenBSD: Pledge.xs,v 1.1 2015/11/29 19:01:27 afresh1 Exp $	*/
2 
3 /*
4  * Copyright (c) 2015 Andrew Fresh <afresh1@openbsd.org>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #define PERL_NO_GET_CONTEXT
20 #include "EXTERN.h"
21 #include "perl.h"
22 #include "XSUB.h"
23 
24 #define PLEDGENAMES
25 #include <sys/pledge.h>
26 
27 MODULE = OpenBSD::Pledge		PACKAGE = OpenBSD::Pledge
28 
29 AV *
30 pledgenames()
31     INIT:
32 	int i;
33     CODE:
34 	for (i = 0; pledgenames[i].bits != 0; i++)
35 		XPUSHs( sv_2mortal(
36 		     newSVpv(pledgenames[i].name, strlen(pledgenames[i].name))
37 		) );
38 	XSRETURN(i);
39 
40 int
41 _pledge(const char * promises, SV * paths)
42     INIT:
43 	SSize_t numpaths = 0, n;
44 
45     CODE:
46 	if (SvOK(paths)) {
47 		if (SvTYPE(SvRV(paths)) != SVt_PVAV)
48 			croak("not an ARRAY reference");
49 
50 		numpaths = av_top_index((AV *)SvRV(paths));
51 
52 		const char *pledge_paths[ numpaths + 1 ];
53 		pledge_paths[ numpaths + 1 ] = NULL;
54 
55 		for (n = 0; n <= numpaths; n++)
56 			pledge_paths[n]
57 			    = SvPV_nolen(*av_fetch((AV *)SvRV(paths), n, 0));
58 
59 		RETVAL = pledge(promises, pledge_paths) != -1;
60 	}
61 	else
62 		RETVAL = pledge(promises, NULL) != -1;
63     OUTPUT:
64 	RETVAL
65