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      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) 1988 AT&T	*/
     23 /*	  All Rights Reserved  	*/
     24 
     25 
     26 /*
     27  * Copyright (c) 1999 by Sun Microsystems, Inc.
     28  * All rights reserved.
     29  */
     30 
     31 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     32 
     33 /* vpopen - view path version of the open system call */
     34 
     35 #include <sys/types.h>
     36 #include <fcntl.h>
     37 #include <sys/stat.h>
     38 #include <stdio.h>
     39 #include "vp.h"
     40 
     41 #define	READ	0
     42 
     43 int
     44 vpopen(char *path, int oflag)
     45 {
     46 	char	buf[MAXPATH + 1];
     47 	int	returncode;
     48 	int	i;
     49 
     50 	if ((returncode = open(path, oflag, 0666)) == -1 && *path != '/' &&
     51 	    oflag == READ) {
     52 		vpinit((char *)0);
     53 		for (i = 1; i < vpndirs; i++) {
     54 			(void) sprintf(buf, "%s/%s", vpdirs[i], path);
     55 			if ((returncode = open(buf, oflag, 0666)) != -1) {
     56 				break;
     57 			}
     58 		}
     59 	}
     60 	return (returncode);
     61 }
     62