1 /* $NetBSD: elf_open.c,v 1.4 2024/03/03 17:37:33 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2011 Joseph Koshy
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30
31 #include <libelf.h>
32
33 #include "_libelf.h"
34
35 __RCSID("$NetBSD: elf_open.c,v 1.4 2024/03/03 17:37:33 christos Exp $");
36 ELFTC_VCSID("Id: elf_open.c 3977 2022-05-01 06:45:34Z jkoshy");
37
38 /*
39 * Extension API: open a file for reading, ignoring parse errors.
40 */
41
42 Elf *
elf_open(int fd)43 elf_open(int fd)
44 {
45 if (LIBELF_PRIVATE(version) == EV_NONE) {
46 LIBELF_SET_ERROR(SEQUENCE, 0);
47 return (NULL);
48 }
49
50 return (_libelf_open_object(fd, ELF_C_READ, 0));
51 }
52
53 /*
54 * Extension API: create an ELF descriptor for an in-memory object,
55 * ignoring parse errors.
56 */
57
58 Elf *
elf_openmemory(char * image,size_t sz)59 elf_openmemory(char *image, size_t sz)
60 {
61 if (LIBELF_PRIVATE(version) == EV_NONE) {
62 LIBELF_SET_ERROR(SEQUENCE, 0);
63 return (NULL);
64 }
65
66 if (image == NULL || sz == 0) {
67 LIBELF_SET_ERROR(ARGUMENT, 0);
68 return (NULL);
69 }
70
71 return (_libelf_memory((unsigned char *) image, sz, 0));
72 }
73