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 /* Copyright (c) 1988 AT&T */ 27 /* All Rights Reserved */ 28 29 30 #ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.5 */ 31 /* LINTLIBRARY */ 32 33 # include <errno.h> 34 35 # include "lp.h" 36 # include "msgs.h" 37 38 39 MESG *lp_Md = 0; 40 41 /* 42 ** mopen() - OPEN A MESSAGE PATH 43 */ 44 45 int 46 mopen () 47 { 48 if (lp_Md != NULL) 49 { 50 errno = EEXIST; 51 return (-1); 52 } 53 54 if ((lp_Md = mconnect(Lp_FIFO, 0, 0)) == NULL) 55 return(-1); 56 57 return(0); 58 } 59