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) 1984, 1986, 1987, 1988, 1989 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright 1993-2003 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 32 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.5 */ 33 34 #include "mt.h" 35 #include <rpc/trace.h> 36 #include <errno.h> 37 #include <unistd.h> 38 #include <xti.h> 39 #include <signal.h> 40 #include <stropts.h> 41 #include "tx.h" 42 43 int 44 _tx_close(int fd, int api_semantics) 45 { 46 sigset_t mask; 47 int sv_errno; 48 49 trace2(TR_t_close, 0, fd); 50 51 if (_t_checkfd(fd, 0, api_semantics) == NULL) { 52 sv_errno = errno; 53 trace2(TR_t_close, 1, fd); 54 errno = sv_errno; 55 return (-1); 56 } 57 58 (void) thr_sigsetmask(SIG_SETMASK, &fillset, &mask); 59 sig_mutex_lock(&_ti_userlock); 60 if (_t_delete_tilink(fd) < 0) { 61 sv_errno = errno; 62 sig_mutex_unlock(&_ti_userlock); 63 (void) thr_sigsetmask(SIG_SETMASK, &mask, NULL); 64 trace2(TR_t_close, 1, fd); 65 errno = sv_errno; 66 return (-1); 67 } 68 /* 69 * Note: close() needs to be inside the lock. If done 70 * outside, another process may inherit the desriptor 71 * and recreate library level instance structures 72 */ 73 (void) close(fd); 74 75 sig_mutex_unlock(&_ti_userlock); 76 (void) thr_sigsetmask(SIG_SETMASK, &mask, NULL); 77 trace2(TR_t_close, 1, fd); 78 return (0); 79 } 80