text: /*-
   * 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_cntl.c 2225 2011-11-26 18:55:54Z jkoshy $");
  
  int
  elf_cntl(Elf *e, Elf_Cmd c)
  {
  	if (e == NULL ||
  	    (c != ELF_C_FDDONE && c != ELF_C_FDREAD)) {
  		LIBELF_SET_ERROR(ARGUMENT, 0);
  		return (-1);
  	}
  
  	if (e->e_parent) {
  		LIBELF_SET_ERROR(ARCHIVE, 0);
  		return (-1);
  	}
  
  	if (c == ELF_C_FDREAD) {
  		if (e->e_cmd == ELF_C_WRITE) {
  			LIBELF_SET_ERROR(MODE, 0);
  			return (-1);
  		}
  		else
  			return (0);
  	}
  
  	e->e_fd = -1;
  	return 0;
  }
  