1164190Sjkoshy/*- 2164190Sjkoshy * Copyright (c) 2006 Joseph Koshy 3164190Sjkoshy * All rights reserved. 4164190Sjkoshy * 5164190Sjkoshy * Redistribution and use in source and binary forms, with or without 6164190Sjkoshy * modification, are permitted provided that the following conditions 7164190Sjkoshy * are met: 8164190Sjkoshy * 1. Redistributions of source code must retain the above copyright 9164190Sjkoshy * notice, this list of conditions and the following disclaimer. 10164190Sjkoshy * 2. Redistributions in binary form must reproduce the above copyright 11164190Sjkoshy * notice, this list of conditions and the following disclaimer in the 12164190Sjkoshy * documentation and/or other materials provided with the distribution. 13164190Sjkoshy * 14164190Sjkoshy * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15164190Sjkoshy * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16164190Sjkoshy * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17164190Sjkoshy * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18164190Sjkoshy * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19164190Sjkoshy * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20164190Sjkoshy * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21164190Sjkoshy * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22164190Sjkoshy * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23164190Sjkoshy * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24164190Sjkoshy * SUCH DAMAGE. 25164190Sjkoshy */ 26164190Sjkoshy 27164190Sjkoshy#include <sys/cdefs.h> 28164190Sjkoshy__FBSDID("$FreeBSD$"); 29164190Sjkoshy 30164190Sjkoshy#include <libelf.h> 31164190Sjkoshy 32164190Sjkoshy#include "_libelf.h" 33164190Sjkoshy 34164190Sjkoshyint 35164190Sjkoshyelf_cntl(Elf *e, Elf_Cmd c) 36164190Sjkoshy{ 37164190Sjkoshy if (e == NULL || 38164190Sjkoshy (c != ELF_C_FDDONE && c != ELF_C_FDREAD)) { 39164190Sjkoshy LIBELF_SET_ERROR(ARGUMENT, 0); 40164190Sjkoshy return (-1); 41164190Sjkoshy } 42164190Sjkoshy 43164190Sjkoshy if (e->e_parent) { 44164190Sjkoshy LIBELF_SET_ERROR(ARCHIVE, 0); 45164190Sjkoshy return (-1); 46164190Sjkoshy } 47164190Sjkoshy 48164190Sjkoshy if (c == ELF_C_FDREAD) { 49164190Sjkoshy if (e->e_cmd == ELF_C_WRITE) { 50164190Sjkoshy LIBELF_SET_ERROR(MODE, 0); 51164190Sjkoshy return (-1); 52164190Sjkoshy } 53164190Sjkoshy else 54164190Sjkoshy return (0); 55164190Sjkoshy } 56164190Sjkoshy 57164190Sjkoshy e->e_fd = -1; 58164190Sjkoshy return 0; 59164190Sjkoshy} 60