IABSD.fr/src/lib/libelf/elf_rawfile.c

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• Author : jsg
  Date : 2019-03-19 02:31:35
  Hash : e219834f
  Message : update libelf from elftoolchain r3669 to r3714 includes changes to address problems sunil@ found with fuzzing original diff from and ok sunil@

• lib/libelf/elf_rawfile.c

• /*-
   * Copyright (c) 2006,2008 Joseph Koshy
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   */
  
  #include <libelf.h>
  
  #include "_libelf.h"
  
  ELFTC_VCSID("$Id: elf_rawfile.c,v 1.2 2019/03/19 02:31:35 jsg Exp $");
  
  char *
  elf_rawfile(Elf *e, size_t *sz)
  {
  	unsigned char *ptr;
  
  	ptr = NULL;
  
  	if (e == NULL)
  		LIBELF_SET_ERROR(ARGUMENT, 0);
  	else if ((ptr = e->e_rawfile) == NULL && e->e_cmd == ELF_C_WRITE)
  		LIBELF_SET_ERROR(SEQUENCE, 0);
  
  	if (sz)
  		*sz = e ? (size_t) e->e_rawsize : 0;
  
  	return ((char *) ptr);
  }