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 * 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 * 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