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 ANY
11 * 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 "fmt.h"
17 #include "fmtdef.h"
18
19 /*
20 * generic routine for flushing a formatting buffer
21 * to a file descriptor
22 */
23 int
__fmtFdFlush(Fmt * f)24 __fmtFdFlush(Fmt *f)
25 {
26 int n;
27
28 n = (char*)f->to - (char*)f->start;
29 if(n && write((int)f->farg, f->start, n) != n)
30 return 0;
31 f->to = f->start;
32 return 1;
33 }
34