1 |
greg |
2.1 |
#ifndef lint |
2 |
greg |
2.3 |
static const char RCSid[] = "$Id$"; |
3 |
greg |
2.1 |
#endif |
4 |
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/* |
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* Duplicate header on stdout. |
6 |
greg |
2.3 |
* |
7 |
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* Externals declared in ray.h |
8 |
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*/ |
9 |
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10 |
greg |
2.4 |
#include "copyright.h" |
11 |
greg |
2.1 |
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12 |
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#include "standard.h" |
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#include "paths.h" |
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15 |
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16 |
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int headismine = 1; /* true if header file belongs to me */ |
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18 |
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static char *headfname = NULL; /* temp file name */ |
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static FILE *headfp = NULL; /* temp file pointer */ |
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21 |
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22 |
greg |
2.3 |
void |
23 |
greg |
2.1 |
headclean() /* remove header temp file (if one) */ |
24 |
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{ |
25 |
greg |
2.3 |
if (headfname == NULL) |
26 |
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return; |
27 |
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if (headfp != NULL) |
28 |
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fclose(headfp); |
29 |
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if (headismine) |
30 |
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unlink(headfname); |
31 |
greg |
2.1 |
} |
32 |
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33 |
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34 |
greg |
2.3 |
void |
35 |
greg |
2.1 |
openheader() /* save standard output to header file */ |
36 |
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{ |
37 |
greg |
2.2 |
static char template[] = TEMPLATE; |
38 |
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39 |
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headfname = mktemp(template); |
40 |
greg |
2.1 |
if (freopen(headfname, "w", stdout) == NULL) { |
41 |
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sprintf(errmsg, "cannot open header file \"%s\"", headfname); |
42 |
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error(SYSTEM, errmsg); |
43 |
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} |
44 |
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} |
45 |
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46 |
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47 |
greg |
2.3 |
void |
48 |
greg |
2.1 |
dupheader() /* repeat header on standard output */ |
49 |
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{ |
50 |
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register int c; |
51 |
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52 |
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if (headfp == NULL) { |
53 |
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if ((headfp = fopen(headfname, "r")) == NULL) |
54 |
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error(SYSTEM, "error reopening header file"); |
55 |
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#ifdef MSDOS |
56 |
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setmode(fileno(headfp), O_BINARY); |
57 |
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#endif |
58 |
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} else if (fseek(headfp, 0L, 0) < 0) |
59 |
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error(SYSTEM, "seek error on header file"); |
60 |
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while ((c = getc(headfp)) != EOF) |
61 |
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putchar(c); |
62 |
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} |