src/rt/duphead.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/*
 * Duplicate header on stdout.
 *
 * Externals declared in ray.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 [email protected].
 *
 * 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
 * <http://www.lbl.gov/>.
 */

#include  "standard.h"
#include  "paths.h"


int  headismine = 1;            /* true if header file belongs to me */

static char  *headfname = NULL; /* temp file name */
static FILE  *headfp = NULL;    /* temp file pointer */


void
headclean()                     /* remove header temp file (if one) */
{
        if (headfname == NULL)
                return;
        if (headfp != NULL)
                fclose(headfp);
        if (headismine)
                unlink(headfname);
}


void
openheader()                    /* save standard output to header file */
{
        static char  template[] = TEMPLATE;

        headfname = mktemp(template);
        if (freopen(headfname, "w", stdout) == NULL) {
                sprintf(errmsg, "cannot open header file \"%s\"", headfname);
                error(SYSTEM, errmsg);
        }
}


void
dupheader()                     /* repeat header on standard output */
{
        register int  c;

        if (headfp == NULL) {
                if ((headfp = fopen(headfname, "r")) == NULL)
                        error(SYSTEM, "error reopening header file");
#ifdef MSDOS
                setmode(fileno(headfp), O_BINARY);
#endif
        } else if (fseek(headfp, 0L, 0) < 0)
                error(SYSTEM, "seek error on header file");
        while ((c = getc(headfp)) != EOF)
                putchar(c);
}
Revision:	2.3
Committed:	Sat Feb 22 02:07:28 2003 UTC (22 years, 8 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 2.2:	+69 -10 lines
Log Message:	Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
#	User	Rev	Content
1	greg	2.1	#ifndef lint
2	greg	2.3	static const char RCSid[] = "$Id$";
3	greg	2.1	#endif
4			/*
5			* Duplicate header on stdout.
6	greg	2.3	*
7			* Externals declared in ray.h
8			*/
9
10			/* ====================================================================
11			* The Radiance Software License, Version 1.0
12			*
13			* Copyright (c) 1990 - 2002 The Regents of the University of California,
14			* through Lawrence Berkeley National Laboratory. All rights reserved.
15			*
16			* Redistribution and use in source and binary forms, with or without
17			* modification, are permitted provided that the following conditions
18			* are met:
19			*
20			* 1. Redistributions of source code must retain the above copyright
21			* notice, this list of conditions and the following disclaimer.
22			*
23			* 2. Redistributions in binary form must reproduce the above copyright
24			* notice, this list of conditions and the following disclaimer in
25			* the documentation and/or other materials provided with the
26			* distribution.
27			*
28			* 3. The end-user documentation included with the redistribution,
29			* if any, must include the following acknowledgment:
30			* "This product includes Radiance software
31			* (http://radsite.lbl.gov/)
32			* developed by the Lawrence Berkeley National Laboratory
33			* (http://www.lbl.gov/)."
34			* Alternately, this acknowledgment may appear in the software itself,
35			* if and wherever such third-party acknowledgments normally appear.
36			*
37			* 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
38			* and "The Regents of the University of California" must
39			* not be used to endorse or promote products derived from this
40			* software without prior written permission. For written
41			* permission, please contact [email protected].
42			*
43			* 5. Products derived from this software may not be called "Radiance",
44			* nor may "Radiance" appear in their name, without prior written
45			* permission of Lawrence Berkeley National Laboratory.
46			*
47			* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
48			* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
49			* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
50			* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR
51			* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
52			* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
53			* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
54			* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
55			* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
56			* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
57			* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58			* SUCH DAMAGE.
59			* ====================================================================
60			*
61			* This software consists of voluntary contributions made by many
62			* individuals on behalf of Lawrence Berkeley National Laboratory. For more
63			* information on Lawrence Berkeley National Laboratory, please see
64			* <http://www.lbl.gov/>.
65	greg	2.1	*/
66
67			#include "standard.h"
68			#include "paths.h"
69
70
71			int headismine = 1; /* true if header file belongs to me */
72
73			static char headfname = NULL; / temp file name */
74			static FILE headfp = NULL; / temp file pointer */
75
76
77	greg	2.3	void
78	greg	2.1	headclean() /* remove header temp file (if one) */
79			{
80	greg	2.3	if (headfname == NULL)
81			return;
82			if (headfp != NULL)
83			fclose(headfp);
84			if (headismine)
85			unlink(headfname);
86	greg	2.1	}
87
88
89	greg	2.3	void
90	greg	2.1	openheader() /* save standard output to header file */
91			{
92	greg	2.2	static char template[] = TEMPLATE;
93
94			headfname = mktemp(template);
95	greg	2.1	if (freopen(headfname, "w", stdout) == NULL) {
96			sprintf(errmsg, "cannot open header file \"%s\"", headfname);
97			error(SYSTEM, errmsg);
98			}
99			}
100
101
102	greg	2.3	void
103	greg	2.1	dupheader() /* repeat header on standard output */
104			{
105			register int c;
106
107			if (headfp == NULL) {
108			if ((headfp = fopen(headfname, "r")) == NULL)
109			error(SYSTEM, "error reopening header file");
110			#ifdef MSDOS
111			setmode(fileno(headfp), O_BINARY);
112			#endif
113			} else if (fseek(headfp, 0L, 0) < 0)
114			error(SYSTEM, "seek error on header file");
115			while ((c = getc(headfp)) != EOF)
116			putchar(c);
117			}