1/* $NetBSD: elf_cntl.c,v 1.5 2024/03/03 17:37:33 christos Exp $ */ 2 3/*- 4 * Copyright (c) 2006,2008 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_cntl.c,v 1.5 2024/03/03 17:37:33 christos Exp $"); 36ELFTC_VCSID("Id: elf_cntl.c 3977 2022-05-01 06:45:34Z jkoshy"); 37 38int 39elf_cntl(Elf *e, Elf_Cmd c) 40{ 41 if (e == NULL || 42 (c != ELF_C_FDDONE && c != ELF_C_FDREAD)) { 43 LIBELF_SET_ERROR(ARGUMENT, 0); 44 return (-1); 45 } 46 47 if (e->e_parent) { 48 LIBELF_SET_ERROR(ARCHIVE, 0); 49 return (-1); 50 } 51 52 if (c == ELF_C_FDREAD) { 53 if (e->e_cmd == ELF_C_WRITE) { 54 LIBELF_SET_ERROR(MODE, 0); 55 return (-1); 56 } 57 else 58 return (0); 59 } 60 61 e->e_fd = -1; 62 return 0; 63} 64