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greg |
2.1 |
#ifndef lint
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| 2 |
schorsch |
2.5 |
static const char RCSid[] = "$Id: duphead.c,v 2.4 2003/02/25 02:47:22 greg Exp $";
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| 3 |
greg |
2.1 |
#endif
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| 4 |
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/*
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* Duplicate header on stdout.
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greg |
2.3 |
*
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| 7 |
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* Externals declared in ray.h
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| 8 |
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*/
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| 10 |
greg |
2.4 |
#include "copyright.h"
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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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| 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
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| 23 |
greg |
2.1 |
headclean() /* remove header temp file (if one) */
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| 24 |
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{
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| 25 |
greg |
2.3 |
if (headfname == NULL)
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return;
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| 27 |
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if (headfp != NULL)
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| 28 |
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fclose(headfp);
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| 29 |
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if (headismine)
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| 30 |
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unlink(headfname);
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greg |
2.1 |
}
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| 34 |
greg |
2.3 |
void
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| 35 |
greg |
2.1 |
openheader() /* save standard output to header file */
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| 36 |
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{
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| 37 |
greg |
2.2 |
static char template[] = TEMPLATE;
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| 38 |
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| 39 |
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headfname = mktemp(template);
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| 40 |
greg |
2.1 |
if (freopen(headfname, "w", stdout) == NULL) {
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| 41 |
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sprintf(errmsg, "cannot open header file \"%s\"", headfname);
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| 42 |
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error(SYSTEM, errmsg);
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| 43 |
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}
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| 44 |
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}
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| 46 |
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| 47 |
greg |
2.3 |
void
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| 48 |
greg |
2.1 |
dupheader() /* repeat header on standard output */
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| 49 |
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{
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| 50 |
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register int c;
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| 51 |
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| 52 |
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if (headfp == NULL) {
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| 53 |
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if ((headfp = fopen(headfname, "r")) == NULL)
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| 54 |
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error(SYSTEM, "error reopening header file");
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| 55 |
schorsch |
2.5 |
SET_FILE_BINARY(headfp);
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| 56 |
greg |
2.1 |
} else if (fseek(headfp, 0L, 0) < 0)
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| 57 |
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error(SYSTEM, "seek error on header file");
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| 58 |
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while ((c = getc(headfp)) != EOF)
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| 59 |
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putchar(c);
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| 60 |
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}
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