1/*-
2 * Copyright (c) 2016 Kai Wang
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <errno.h>
28
29#include "_libpe.h"
30
31ELFTC_VCSID("$Id: pe_cntl.c 3312 2016-01-10 09:23:51Z kaiwang27 $");
32
33int
34pe_cntl(PE *pe, PE_Cmd cmd)
35{
36
37	if (pe == NULL) {
38		errno = EINVAL;
39		return (-1);
40	}
41
42	switch (cmd) {
43	case PE_C_FDDONE:
44		pe->pe_flags |= LIBPE_F_FD_DONE;
45		break;
46
47	case PE_C_FDREAD:
48		if (pe->pe_cmd == PE_C_WRITE) {
49			errno = EACCES;
50			return (-1);
51		}
52		if (libpe_load_all_sections(pe) < 0)
53			return (-1);
54		break;
55
56	default:
57		errno = EINVAL;
58		return (-1);
59	}
60
61	return (0);
62}
63