1 files changed, 28 insertions, 0 deletions
diff --git a/src/libbio/bprint.c b/src/libbio/bprint.c
new file mode 100644
index 00000000..81e71e5e
--- /dev/null
+++ b/src/libbio/bprint.c
@@ -0,0 +1,28 @@
+#include	"lib9.h"
+#include	<bio.h>
+
+int
+Bprint(Biobuf *bp, char *fmt, ...)
+{
+	va_list	ap;
+	char *ip, *ep, *out;
+	int n;
+
+	ep = (char*)bp->ebuf;
+	ip = ep + bp->ocount;
+	va_start(ap, fmt);
+	out = vseprint(ip, ep, fmt, ap);
+	va_end(ap);
+	if(out == 0 || out >= ep-5) {
+		Bflush(bp);
+		ip = ep + bp->ocount;
+		va_start(ap, fmt);
+		out = vseprint(ip, ep, fmt, ap);
+		va_end(ap);
+		if(out >= ep-5)
+			return Beof;
+	}
+	n = out-ip;
+	bp->ocount += n;
+	return n;
+}