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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include "libelf.h" 33 #include "decl.h" 34 #include "msg.h" 35 36 int 37 elf_cntl(Elf * elf, Elf_Cmd cmd) 38 { 39 40 if (elf == 0) 41 return (0); 42 ELFWLOCK(elf); 43 switch (cmd) { 44 case ELF_C_FDREAD: 45 { 46 int j = 0; 47 48 if ((elf->ed_myflags & EDF_READ) == 0) { 49 _elf_seterr(EREQ_CNTLWRT, 0); 50 ELFUNLOCK(elf); 51 return (-1); 52 } 53 if ((elf->ed_status != ES_FROZEN) && 54 ((_elf_cook(elf) != OK_YES) || 55 (_elf_vm(elf, (size_t)0, elf->ed_fsz) != OK_YES))) 56 j = -1; 57 elf->ed_fd = -1; 58 ELFUNLOCK(elf); 59 return (j); 60 } 61 62 case ELF_C_FDDONE: 63 if ((elf->ed_myflags & EDF_READ) == 0) { 64 _elf_seterr(EREQ_CNTLWRT, 0); 65 ELFUNLOCK(elf); 66 return (-1); 67 } 68 elf->ed_fd = -1; 69 ELFUNLOCK(elf); 70 return (0); 71 72 default: 73 _elf_seterr(EREQ_CNTLCMD, 0); 74 break; 75 } 76 ELFUNLOCK(elf); 77 return (-1); 78 } 79