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 #include "libelf.h" 31 #include "decl.h" 32 #include "msg.h" 33 34 int 35 elf_cntl(Elf * elf, Elf_Cmd cmd) 36 { 37 38 if (elf == 0) 39 return (0); 40 ELFWLOCK(elf); 41 switch (cmd) { 42 case ELF_C_FDREAD: 43 { 44 int j = 0; 45 46 if ((elf->ed_myflags & EDF_READ) == 0) { 47 _elf_seterr(EREQ_CNTLWRT, 0); 48 ELFUNLOCK(elf); 49 return (-1); 50 } 51 if ((elf->ed_status != ES_FROZEN) && 52 ((_elf_cook(elf) != OK_YES) || 53 (_elf_vm(elf, (size_t)0, elf->ed_fsz) != OK_YES))) 54 j = -1; 55 elf->ed_fd = -1; 56 ELFUNLOCK(elf); 57 return (j); 58 } 59 60 case ELF_C_FDDONE: 61 if ((elf->ed_myflags & EDF_READ) == 0) { 62 _elf_seterr(EREQ_CNTLWRT, 0); 63 ELFUNLOCK(elf); 64 return (-1); 65 } 66 elf->ed_fd = -1; 67 ELFUNLOCK(elf); 68 return (0); 69 70 default: 71 _elf_seterr(EREQ_CNTLCMD, 0); 72 break; 73 } 74 ELFUNLOCK(elf); 75 return (-1); 76 } 77