1 /*
2  * The authors of this software are Rob Pike and Ken Thompson.
3  *              Copyright (c) 2002 by Lucent Technologies.
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose without fee is hereby granted, provided that this entire notice
6  * is included in all copies of any software which is or includes a copy
7  * or modification of this software and in all copies of the supporting
8  * documentation for such software.
9  * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
10  * WARRANTY.  IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE
11  * ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
12  * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
13  */
14 #include <stdarg.h>
15 #include <unistd.h>
16 #include "plan9.h"
17 #include "fmt.h"
18 #include "fmtdef.h"
19 
20 /*
21  * generic routine for flushing a formatting buffer
22  * to a file descriptor
23  */
24 int
25 __fmtFdFlush(Fmt *f)
26 {
27 	int n;
28 
29 	n = (char*)f->to - (char*)f->start;
30 	if(n && write((int)f->farg, f->start, n) != n)
31 		return 0;
32 	f->to = f->start;
33 	return 1;
34 }