--- ray/src/common/fropen.c 1992/09/08 09:09:23 2.4
+++ ray/src/common/fropen.c 2003/02/22 02:07:22 2.8
@@ -1,47 +1,95 @@
-/* Copyright (c) 1992 Regents of the University of California */
-
#ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char RCSid[] = "$Id: fropen.c,v 2.8 2003/02/22 02:07:22 greg Exp $";
#endif
-
/*
* Find and open a Radiance library file.
+ *
+ * External symbols declared in standard.h
*/
+/* ====================================================================
+ * The Radiance Software License, Version 1.0
+ *
+ * Copyright (c) 1990 - 2002 The Regents of the University of California,
+ * through Lawrence Berkeley National Laboratory. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution,
+ * if any, must include the following acknowledgment:
+ * "This product includes Radiance software
+ * (http://radsite.lbl.gov/)
+ * developed by the Lawrence Berkeley National Laboratory
+ * (http://www.lbl.gov/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
+ * and "The Regents of the University of California" must
+ * not be used to endorse or promote products derived from this
+ * software without prior written permission. For written
+ * permission, please contact radiance@radsite.lbl.gov.
+ *
+ * 5. Products derived from this software may not be called "Radiance",
+ * nor may "Radiance" appear in their name, without prior written
+ * permission of Lawrence Berkeley National Laboratory.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of Lawrence Berkeley National Laboratory. For more
+ * information on Lawrence Berkeley National Laboratory, please see
+ * .
+ */
+
#include
#include "paths.h"
-char *libpath = NULL; /* library search path */
-
FILE *
-fropen(fname) /* find file and open for reading */
+frlibopen(fname) /* find file and open for reading */
register char *fname;
{
- extern char *strcpy();
+ extern char *strcpy(), *getlibpath();
FILE *fp;
- char pname[256];
+ char pname[MAXPATH];
register char *sp, *cp;
if (fname == NULL)
return(NULL);
- if (fname[0] == DIRSEP || fname[0] == '.') /* absolute path */
+ if (ISDIRSEP(fname[0]) || fname[0] == '.') /* absolute path */
return(fopen(fname, "r"));
-
- if (libpath == NULL) { /* get search path */
- libpath = getenv(ULIBVAR);
- if (libpath == NULL)
- libpath = DEFPATH;
- }
/* check search path */
- sp = libpath;
+ sp = getlibpath();
do {
cp = pname;
while (*sp && (*cp = *sp++) != PATHSEP)
cp++;
- if (cp > pname && cp[-1] != DIRSEP)
+ if (cp > pname && !ISDIRSEP(cp[-1]))
*cp++ = DIRSEP;
strcpy(cp, fname);
if ((fp = fopen(pname, "r")) != NULL)