File: vfprintf.c

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/*
 * vfprintf.c
 */

#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <unistd.h>

#define BUFFER_SIZE	32768

int vfprintf(FILE * file, const char *format, va_list ap)
{
    int rv;
    char buffer[BUFFER_SIZE];

    rv = vsnprintf(buffer, BUFFER_SIZE, format, ap);

    if (rv < 0)
	return rv;

    if (rv > BUFFER_SIZE - 1)
	rv = BUFFER_SIZE - 1;

    return _fwrite(buffer, rv, file);
}