1 #include "lib9.h"
2 #include <bio.h>
3 
4 static int
5 fmtBflush(Fmt *f)
6 {
7 	Biobuf *bp;
8 
9 	bp = f->farg;
10 	bp->ocount = (char*)f->to - (char*)f->stop;
11 	if(Bflush(bp) < 0)
12 		return 0;
13 	f->stop = bp->ebuf;
14 	f->to = (char*)f->stop + bp->ocount;
15 	f->start = f->to;
16 	return 1;
17 }
18 
19 int
20 Bvprint(Biobuf *bp, char *fmt, va_list arg)
21 {
22 	int n;
23 	Fmt f;
24 
25 	f.runes = 0;
26 	f.stop = bp->ebuf;
27 	f.start = (char*)f.stop + bp->ocount;
28 	f.to = f.start;
29 	f.flush = fmtBflush;
30 	f.farg = bp;
31 	f.nfmt = 0;
32 	fmtlocaleinit(&f, nil, nil, nil);
33 	n = fmtvprint(&f, fmt, arg);
34 	bp->ocount = (char*)f.to - (char*)f.stop;
35 	if(n == 0)
36 		n = f.nfmt;
37 	return n;
38 }