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 5*7257d1b4Sraf * Common Development and Distribution License (the "License"). 6*7257d1b4Sraf * 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 */ 21*7257d1b4Sraf 22*7257d1b4Sraf /* 23*7257d1b4Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24*7257d1b4Sraf * Use is subject to license terms. 25*7257d1b4Sraf */ 26*7257d1b4Sraf 277c478bd9Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 287c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 297c478bd9Sstevel@tonic-gate 30*7257d1b4Sraf #pragma ident "%Z%%M% %I% %E% SMI" 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate #include <stdlib.h> 337c478bd9Sstevel@tonic-gate #include <unistd.h> 347c478bd9Sstevel@tonic-gate #include <errno.h> 357c478bd9Sstevel@tonic-gate #include "libelf.h" 367c478bd9Sstevel@tonic-gate #include "decl.h" 377c478bd9Sstevel@tonic-gate #include "msg.h" 387c478bd9Sstevel@tonic-gate 397c478bd9Sstevel@tonic-gate 407c478bd9Sstevel@tonic-gate /* 417c478bd9Sstevel@tonic-gate * Raw file input/output 427c478bd9Sstevel@tonic-gate * Read pieces of input files. 437c478bd9Sstevel@tonic-gate */ 447c478bd9Sstevel@tonic-gate 457c478bd9Sstevel@tonic-gate 467c478bd9Sstevel@tonic-gate char * 477c478bd9Sstevel@tonic-gate _elf_read(int fd, off_t off, size_t fsz) 487c478bd9Sstevel@tonic-gate { 497c478bd9Sstevel@tonic-gate char *p; 507c478bd9Sstevel@tonic-gate 517c478bd9Sstevel@tonic-gate if (fsz == 0) 527c478bd9Sstevel@tonic-gate return (0); 537c478bd9Sstevel@tonic-gate 547c478bd9Sstevel@tonic-gate if (fd == -1) { 557c478bd9Sstevel@tonic-gate _elf_seterr(EREQ_NOFD, 0); 567c478bd9Sstevel@tonic-gate return (0); 577c478bd9Sstevel@tonic-gate } 587c478bd9Sstevel@tonic-gate 597c478bd9Sstevel@tonic-gate if (lseek(fd, off, 0) != off) { 607c478bd9Sstevel@tonic-gate _elf_seterr(EIO_SEEK, errno); 617c478bd9Sstevel@tonic-gate return (0); 627c478bd9Sstevel@tonic-gate } 637c478bd9Sstevel@tonic-gate if ((p = (char *)malloc(fsz)) == 0) { 647c478bd9Sstevel@tonic-gate _elf_seterr(EMEM_DATA, errno); 657c478bd9Sstevel@tonic-gate return (0); 667c478bd9Sstevel@tonic-gate } 677c478bd9Sstevel@tonic-gate 687c478bd9Sstevel@tonic-gate if (read(fd, p, fsz) != fsz) { 697c478bd9Sstevel@tonic-gate _elf_seterr(EIO_READ, errno); 707c478bd9Sstevel@tonic-gate free(p); 717c478bd9Sstevel@tonic-gate return (0); 727c478bd9Sstevel@tonic-gate } 737c478bd9Sstevel@tonic-gate return (p); 747c478bd9Sstevel@tonic-gate } 75