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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1988 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright (c) 1998 by Sun Microsystems, Inc. 28 * All rights reserved. 29 */ 30 31 32 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.2 */ 33 34 #include "syn.h" 35 #include <stdlib.h> 36 #include <unistd.h> 37 #include <errno.h> 38 #include "libelf.h" 39 #include "decl.h" 40 #include "msg.h" 41 42 43 /* 44 * Raw file input/output 45 * Read pieces of input files. 46 */ 47 48 49 char * 50 _elf_read(int fd, off_t off, size_t fsz) 51 { 52 char *p; 53 54 if (fsz == 0) 55 return (0); 56 57 if (fd == -1) { 58 _elf_seterr(EREQ_NOFD, 0); 59 return (0); 60 } 61 62 if (lseek(fd, off, 0) != off) { 63 _elf_seterr(EIO_SEEK, errno); 64 return (0); 65 } 66 if ((p = (char *)malloc(fsz)) == 0) { 67 _elf_seterr(EMEM_DATA, errno); 68 return (0); 69 } 70 71 if (read(fd, p, fsz) != fsz) { 72 _elf_seterr(EIO_READ, errno); 73 free(p); 74 return (0); 75 } 76 return (p); 77 } 78