#include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <errno.h> #include "ioprivate.h" int fputc(int c, FILE *f){	c &= 0xff; 	// Make sure we have output buffer space for one character.	if (f->opos >= f->omax) {		if (__getospace(f) < 0)			return EOF;	} 	// Add the character to the buffer	f->obuf[f->opos++] = c; 	// Flush the buffer if appropriate.	if ((f->bufmode == _IOLBF && c == '\n') || (f->bufmode == _IONBF)) {		if (fflush(f) < 0)			return EOF;	} 	return c;}