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46 lines
643 B
C
46 lines
643 B
C
/*
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* vfprintf.c
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*
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* Ullrich von Bassewitz, 11.08.1998
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*/
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#include <stdarg.h>
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#include <stdio.h>
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#include "_printf.h"
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static void out (struct outdesc* d, const char* buf, unsigned count)
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/* Routine used for writing */
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{
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/* Write to the file */
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if (fwrite (buf, count, 1, (FILE*) d->ptr) == -1) {
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d->ccount = -1;
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} else {
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d->ccount += count;
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}
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}
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int vfprintf (FILE* f, const char* format, va_list ap)
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{
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struct outdesc d;
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/* Setup descriptor */
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d.fout = out;
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d.ptr = f;
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/* Do formatting and output */
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_printf (&d, format, ap);
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/* Return bytes written */
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return d.ccount;
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}
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