1 #include	"lib9.h"
2 #include	<bio.h>
3 
4 int
5 Bprint(Biobuf *bp, char *fmt, ...)
6 {
7 	va_list	ap;
8 	char *ip, *ep, *out;
9 	int n;
10 
11 	ep = (char*)bp->ebuf;
12 	ip = ep + bp->ocount;
13 	va_start(ap, fmt);
14 	out = vseprint(ip, ep, fmt, ap);
15 	va_end(ap);
16 	if(out == 0 || out >= ep-5) {
17 		Bflush(bp);
18 		ip = ep + bp->ocount;
19 		va_start(ap, fmt);
20 		out = vseprint(ip, ep, fmt, ap);
21 		va_end(ap);
22 		if(out >= ep-5)
23 			return Beof;
24 	}
25 	n = out-ip;
26 	bp->ocount += n;
27 	return n;
28 }