| 1 |
greg |
2.1 |
#ifndef lint |
| 2 |
schorsch |
2.5 |
static const char RCSid[] = "$Id: duphead.c,v 2.4 2003/02/25 02:47:22 greg Exp $"; |
| 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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*/ |
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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" |
| 14 |
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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 */ |
| 19 |
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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 |
schorsch |
2.5 |
SET_FILE_BINARY(headfp); |
| 56 |
greg |
2.1 |
} else if (fseek(headfp, 0L, 0) < 0) |
| 57 |
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error(SYSTEM, "seek error on header file"); |
| 58 |
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while ((c = getc(headfp)) != EOF) |
| 59 |
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putchar(c); |
| 60 |
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} |
