1 /* Copyright (c) 2002-2006 Lucent Technologies; see LICENSE */
2 #include <stdarg.h>
3 #include <unistd.h>
4 #include "plan9.h"
5 #include "fmt.h"
6 #include "fmtdef.h"
7 
8 /*
9  * generic routine for flushing a formatting buffer
10  * to a file descriptor
11  */
12 int
13 __fmtFdFlush(Fmt *f)
14 {
15 	int n;
16 
17 	n = (char*)f->to - (char*)f->start;
18 	if(n && write((uintptr)f->farg, f->start, n) != n)
19 		return 0;
20 	f->to = f->start;
21 	return 1;
22 }