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 */
217c478bd9Sstevel@tonic-gate
227c478bd9Sstevel@tonic-gate /*
23*7257d1b4Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24*7257d1b4Sraf * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
27*7257d1b4Sraf /* Copyright (c) 1988 AT&T */
28*7257d1b4Sraf /* All Rights Reserved */
297c478bd9Sstevel@tonic-gate
307c478bd9Sstevel@tonic-gate #include <stdlib.h>
317c478bd9Sstevel@tonic-gate #include <unistd.h>
327c478bd9Sstevel@tonic-gate #include <errno.h>
337c478bd9Sstevel@tonic-gate #include "libelf.h"
347c478bd9Sstevel@tonic-gate #include "decl.h"
357c478bd9Sstevel@tonic-gate #include "msg.h"
367c478bd9Sstevel@tonic-gate
377c478bd9Sstevel@tonic-gate
387c478bd9Sstevel@tonic-gate /*
397c478bd9Sstevel@tonic-gate * Raw file input/output
407c478bd9Sstevel@tonic-gate * Read pieces of input files.
417c478bd9Sstevel@tonic-gate */
427c478bd9Sstevel@tonic-gate
437c478bd9Sstevel@tonic-gate
447c478bd9Sstevel@tonic-gate char *
_elf_read(int fd,off_t off,size_t fsz)457c478bd9Sstevel@tonic-gate _elf_read(int fd, off_t off, size_t fsz)
467c478bd9Sstevel@tonic-gate {
477c478bd9Sstevel@tonic-gate char *p;
487c478bd9Sstevel@tonic-gate
497c478bd9Sstevel@tonic-gate if (fsz == 0)
507c478bd9Sstevel@tonic-gate return (0);
517c478bd9Sstevel@tonic-gate
527c478bd9Sstevel@tonic-gate if (fd == -1) {
537c478bd9Sstevel@tonic-gate _elf_seterr(EREQ_NOFD, 0);
547c478bd9Sstevel@tonic-gate return (0);
557c478bd9Sstevel@tonic-gate }
567c478bd9Sstevel@tonic-gate
577c478bd9Sstevel@tonic-gate if (lseek(fd, off, 0) != off) {
587c478bd9Sstevel@tonic-gate _elf_seterr(EIO_SEEK, errno);
597c478bd9Sstevel@tonic-gate return (0);
607c478bd9Sstevel@tonic-gate }
617c478bd9Sstevel@tonic-gate if ((p = (char *)malloc(fsz)) == 0) {
627c478bd9Sstevel@tonic-gate _elf_seterr(EMEM_DATA, errno);
637c478bd9Sstevel@tonic-gate return (0);
647c478bd9Sstevel@tonic-gate }
657c478bd9Sstevel@tonic-gate
667c478bd9Sstevel@tonic-gate if (read(fd, p, fsz) != fsz) {
677c478bd9Sstevel@tonic-gate _elf_seterr(EIO_READ, errno);
687c478bd9Sstevel@tonic-gate free(p);
697c478bd9Sstevel@tonic-gate return (0);
707c478bd9Sstevel@tonic-gate }
717c478bd9Sstevel@tonic-gate return (p);
727c478bd9Sstevel@tonic-gate }
73