1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 1990, 2010, Oracle and/or its affiliates. All rights reserved. 24 */ 25 26 /* Copyright (c) 1988 AT&T */ 27 /* All Rights Reserved */ 28 29 #include <ar.h> 30 #include "libelf.h" 31 #include "decl.h" 32 33 34 off_t elf_getbase(Elf * elf)35elf_getbase(Elf *elf) 36 { 37 off_t rc; 38 if (elf == NULL) 39 return (-1); 40 ELFRLOCK(elf) 41 rc = elf->ed_baseoff; 42 ELFUNLOCK(elf) 43 return (rc); 44 } 45 46 /* 47 * Private function to obtain the offset of the archive header for 48 * this archive member. The header directly precedes the base offset, 49 * which is available via elf_getbase(), but we wish to isolate the 50 * caller from implementation details that might change. 51 * 52 * Returns the offset on success, and -1 on failure. 53 */ 54 off_t _elf_getarhdrbase(Elf * elf)55_elf_getarhdrbase(Elf *elf) 56 { 57 off_t rc; 58 if (elf == NULL) 59 return (-1); 60 ELFRLOCK(elf) 61 if (elf->ed_parent == NULL) { 62 _elf_seterr(EREQ_AR, 0); 63 ELFUNLOCK(elf); 64 return (-1); 65 } 66 rc = elf->ed_baseoff - sizeof (struct ar_hdr); 67 ELFUNLOCK(elf) 68 return (rc); 69 } 70