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 /* 23 * Copyright (c) 1994, by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/promif.h> 30 #include <sys/promimpl.h> 31 32 static char *stdinpath; 33 static char buffer[OBP_MAXPATHLEN]; 34 35 char * 36 prom_stdinpath(void) 37 { 38 ihandle_t istdin; 39 40 if (stdinpath != (char *) 0) /* Got it already? */ 41 return (stdinpath); 42 43 istdin = prom_stdin_ihandle(); 44 45 if (istdin != (ihandle_t)-1) 46 if (prom_ihandle_to_path(istdin, buffer, 47 OBP_MAXPATHLEN - 1) > 0) 48 return (stdinpath = buffer); 49 return ((char *)0); 50 } 51