fprintf.c

Algorithms for Image Processing and Computer Vision Source Code

/* This is file FPRINTF.C */
/* This file may have been modified by DJ Delorie (Jan 1991).  If so,
** these modifications are Coyright (C) 1993 DJ Delorie, 24 Kirsten Ave,
** Rochester NH, 03867-2954, USA.
*/

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that: (1) source distributions retain this entire copyright
 * notice and comment, and (2) distributions including binaries display
 * the following acknowledgement:  ``This product includes software
 * developed by the University of California, Berkeley and its contributors''
 * in the documentation or other materials provided with the distribution
 * and in all advertising materials mentioning features or use of this
 * software. Neither the name of the University nor the names of its
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)fprintf.c	5.5 (Berkeley) 6/1/90";
#endif /* LIBC_SCCS and not lint */

#include <stdio.h>

int
fprintf(register FILE *iop, const char *fmt, ...)
{
	int len;
	char localbuf[BUFSIZ];

	if (iop->_flag & _IONBF) {
		iop->_flag &= ~_IONBF;
		iop->_ptr = iop->_base = localbuf;
		iop->_bufsiz = BUFSIZ;
		len = _doprnt(fmt, (&fmt)+1, iop);
		fflush(iop);
		iop->_flag |= _IONBF;
		iop->_base = NULL;
		iop->_bufsiz = NULL;
		iop->_cnt = 0;
	} else
		len = _doprnt(fmt, (&fmt)+1, iop);
	return(ferror(iop) ? EOF : len);
}