17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57257d1b4Sraf * Common Development and Distribution License (the "License"). 67257d1b4Sraf * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217257d1b4Sraf 227257d1b4Sraf /* 23*2a93c375SAli Bahrami * Copyright (c) 1990, 2010, Oracle and/or its affiliates. All rights reserved. 247257d1b4Sraf */ 257257d1b4Sraf 267c478bd9Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 277c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate #include "libelf.h" 307c478bd9Sstevel@tonic-gate #include "decl.h" 317c478bd9Sstevel@tonic-gate #include "msg.h" 327c478bd9Sstevel@tonic-gate 337c478bd9Sstevel@tonic-gate size_t 347c478bd9Sstevel@tonic-gate elf_rand(Elf * elf, size_t off) 357c478bd9Sstevel@tonic-gate { 367c478bd9Sstevel@tonic-gate if (elf == 0) 377c478bd9Sstevel@tonic-gate return (0); 387c478bd9Sstevel@tonic-gate ELFWLOCK(elf) 397c478bd9Sstevel@tonic-gate if (elf->ed_kind != ELF_K_AR) { 407c478bd9Sstevel@tonic-gate _elf_seterr(EREQ_AR, 0); 417c478bd9Sstevel@tonic-gate ELFUNLOCK(elf) 427c478bd9Sstevel@tonic-gate return (0); 437c478bd9Sstevel@tonic-gate } 447c478bd9Sstevel@tonic-gate if ((off == 0) || (elf->ed_fsz < off)) { 457c478bd9Sstevel@tonic-gate _elf_seterr(EREQ_RAND, 0); 467c478bd9Sstevel@tonic-gate ELFUNLOCK(elf) 477c478bd9Sstevel@tonic-gate return (0); 487c478bd9Sstevel@tonic-gate } 497c478bd9Sstevel@tonic-gate elf->ed_nextoff = off; 507c478bd9Sstevel@tonic-gate ELFUNLOCK(elf) 517c478bd9Sstevel@tonic-gate return (off); 527c478bd9Sstevel@tonic-gate } 53*2a93c375SAli Bahrami 54*2a93c375SAli Bahrami /* 55*2a93c375SAli Bahrami * Private function used to obtain the current value of the next 56*2a93c375SAli Bahrami * offset field for an archive header. Returns 0 for error, and 57*2a93c375SAli Bahrami * the offset otherwise. 58*2a93c375SAli Bahrami */ 59*2a93c375SAli Bahrami size_t 60*2a93c375SAli Bahrami _elf_getnextoff(Elf *elf) 61*2a93c375SAli Bahrami { 62*2a93c375SAli Bahrami size_t off; 63*2a93c375SAli Bahrami 64*2a93c375SAli Bahrami if (elf == NULL) 65*2a93c375SAli Bahrami return (0); 66*2a93c375SAli Bahrami ELFWLOCK(elf) 67*2a93c375SAli Bahrami if (elf->ed_kind != ELF_K_AR) { 68*2a93c375SAli Bahrami _elf_seterr(EREQ_AR, 0); 69*2a93c375SAli Bahrami ELFUNLOCK(elf) 70*2a93c375SAli Bahrami return (0); 71*2a93c375SAli Bahrami } 72*2a93c375SAli Bahrami off = elf->ed_nextoff; 73*2a93c375SAli Bahrami ELFUNLOCK(elf) 74*2a93c375SAli Bahrami return (off); 75*2a93c375SAli Bahrami 76*2a93c375SAli Bahrami } 77