10Sstevel@tonic-gate /*
20Sstevel@tonic-gate * CDDL HEADER START
30Sstevel@tonic-gate *
40Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*6812Sraf * Common Development and Distribution License (the "License").
6*6812Sraf * You may not use this file except in compliance with the License.
70Sstevel@tonic-gate *
80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
100Sstevel@tonic-gate * See the License for the specific language governing permissions
110Sstevel@tonic-gate * and limitations under the License.
120Sstevel@tonic-gate *
130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
180Sstevel@tonic-gate *
190Sstevel@tonic-gate * CDDL HEADER END
200Sstevel@tonic-gate */
21*6812Sraf
22*6812Sraf /*
23*6812Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24*6812Sraf * Use is subject to license terms.
25*6812Sraf */
26*6812Sraf
270Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */
280Sstevel@tonic-gate /* All Rights Reserved */
290Sstevel@tonic-gate
30*6812Sraf #pragma ident "%Z%%M% %I% %E% SMI"
310Sstevel@tonic-gate
320Sstevel@tonic-gate #include <stdlib.h>
330Sstevel@tonic-gate #include <unistd.h>
340Sstevel@tonic-gate #include <errno.h>
350Sstevel@tonic-gate #include "libelf.h"
360Sstevel@tonic-gate #include "decl.h"
370Sstevel@tonic-gate #include "msg.h"
380Sstevel@tonic-gate
390Sstevel@tonic-gate
400Sstevel@tonic-gate /*
410Sstevel@tonic-gate * Raw file input/output
420Sstevel@tonic-gate * Read pieces of input files.
430Sstevel@tonic-gate */
440Sstevel@tonic-gate
450Sstevel@tonic-gate
460Sstevel@tonic-gate char *
_elf_read(int fd,off_t off,size_t fsz)470Sstevel@tonic-gate _elf_read(int fd, off_t off, size_t fsz)
480Sstevel@tonic-gate {
490Sstevel@tonic-gate char *p;
500Sstevel@tonic-gate
510Sstevel@tonic-gate if (fsz == 0)
520Sstevel@tonic-gate return (0);
530Sstevel@tonic-gate
540Sstevel@tonic-gate if (fd == -1) {
550Sstevel@tonic-gate _elf_seterr(EREQ_NOFD, 0);
560Sstevel@tonic-gate return (0);
570Sstevel@tonic-gate }
580Sstevel@tonic-gate
590Sstevel@tonic-gate if (lseek(fd, off, 0) != off) {
600Sstevel@tonic-gate _elf_seterr(EIO_SEEK, errno);
610Sstevel@tonic-gate return (0);
620Sstevel@tonic-gate }
630Sstevel@tonic-gate if ((p = (char *)malloc(fsz)) == 0) {
640Sstevel@tonic-gate _elf_seterr(EMEM_DATA, errno);
650Sstevel@tonic-gate return (0);
660Sstevel@tonic-gate }
670Sstevel@tonic-gate
680Sstevel@tonic-gate if (read(fd, p, fsz) != fsz) {
690Sstevel@tonic-gate _elf_seterr(EIO_READ, errno);
700Sstevel@tonic-gate free(p);
710Sstevel@tonic-gate return (0);
720Sstevel@tonic-gate }
730Sstevel@tonic-gate return (p);
740Sstevel@tonic-gate }
75