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