#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include "stdio.h"

size_t fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream) {
	int subsize;
	int total;
	unsigned char *b = (unsigned char *) ptr;
	if (!(total = size * nmemb)) /* Just in case size==0 */
		return total;

	__STDIO_LOCK(stream);
	do {
		if (stream->_w > 0) {
			subsize = total > stream->_w ? stream->_w : total;
			memcpy(stream->_p, b, subsize);
			stream->_p += subsize;
			stream->_w -= subsize;
			b += subsize;
			total -= subsize;
		} else {
			int c;
			c = *b++;
			if (putc(c, stream) == EOF)
				break;
			total--;
		}
	} while (total);
	__STDIO_UNLOCK(stream);
	return (b - (unsigned char *) ptr) / size;
}