xref: /freebsd/contrib/elftoolchain/libelf/elf_open.c (revision 98e0ffaefb0f241cda3a72395d3be04192ae0d47)
12de3b87aSKai Wang /*-
22de3b87aSKai Wang  * Copyright (c) 2011 Joseph Koshy
32de3b87aSKai Wang  * All rights reserved.
42de3b87aSKai Wang  *
52de3b87aSKai Wang  * Redistribution and use in source and binary forms, with or without
62de3b87aSKai Wang  * modification, are permitted provided that the following conditions
72de3b87aSKai Wang  * are met:
82de3b87aSKai Wang  * 1. Redistributions of source code must retain the above copyright
92de3b87aSKai Wang  *    notice, this list of conditions and the following disclaimer.
102de3b87aSKai Wang  * 2. Redistributions in binary form must reproduce the above copyright
112de3b87aSKai Wang  *    notice, this list of conditions and the following disclaimer in the
122de3b87aSKai Wang  *    documentation and/or other materials provided with the distribution.
132de3b87aSKai Wang  *
142de3b87aSKai Wang  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
152de3b87aSKai Wang  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
162de3b87aSKai Wang  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
172de3b87aSKai Wang  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
182de3b87aSKai Wang  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
192de3b87aSKai Wang  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
202de3b87aSKai Wang  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
212de3b87aSKai Wang  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
222de3b87aSKai Wang  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
232de3b87aSKai Wang  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
242de3b87aSKai Wang  * SUCH DAMAGE.
252de3b87aSKai Wang  */
262de3b87aSKai Wang 
272de3b87aSKai Wang #include <libelf.h>
282de3b87aSKai Wang 
292de3b87aSKai Wang #include "_libelf.h"
302de3b87aSKai Wang 
312de3b87aSKai Wang ELFTC_VCSID("$Id$");
322de3b87aSKai Wang 
332de3b87aSKai Wang /*
342de3b87aSKai Wang  * Extension API: open a file for reading, ignoring parse errors.
352de3b87aSKai Wang  */
362de3b87aSKai Wang 
372de3b87aSKai Wang Elf *
elf_open(int fd)382de3b87aSKai Wang elf_open(int fd)
392de3b87aSKai Wang {
402de3b87aSKai Wang 	if (LIBELF_PRIVATE(version) == EV_NONE) {
412de3b87aSKai Wang 		LIBELF_SET_ERROR(SEQUENCE, 0);
422de3b87aSKai Wang 		return (NULL);
432de3b87aSKai Wang 	}
442de3b87aSKai Wang 
452de3b87aSKai Wang 	return (_libelf_open_object(fd, ELF_C_READ, 0));
462de3b87aSKai Wang }
472de3b87aSKai Wang 
482de3b87aSKai Wang /*
492de3b87aSKai Wang  * Extension API: create an ELF descriptor for an in-memory object,
502de3b87aSKai Wang  * ignoring parse errors.
512de3b87aSKai Wang  */
522de3b87aSKai Wang 
532de3b87aSKai Wang Elf *
elf_openmemory(char * image,size_t sz)542de3b87aSKai Wang elf_openmemory(char *image, size_t sz)
552de3b87aSKai Wang {
562de3b87aSKai Wang 	if (LIBELF_PRIVATE(version) == EV_NONE) {
572de3b87aSKai Wang 		LIBELF_SET_ERROR(SEQUENCE, 0);
582de3b87aSKai Wang 		return (NULL);
592de3b87aSKai Wang 	}
602de3b87aSKai Wang 
612de3b87aSKai Wang 	if (image == NULL || sz == 0) {
622de3b87aSKai Wang 		LIBELF_SET_ERROR(ARGUMENT, 0);
632de3b87aSKai Wang 		return (NULL);
642de3b87aSKai Wang 	}
652de3b87aSKai Wang 
66*cf781b2eSEd Maste 	return (_libelf_memory((unsigned char *) image, sz, 0));
672de3b87aSKai Wang }
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