1 files changed, 82 insertions, 0 deletions
diff --git a/src/libbio/bprint.c b/src/libbio/bprint.c
new file mode 100644
index 000000000..b5d3e9ece
--- /dev/null
+++ b/src/libbio/bprint.c
@@ -0,0 +1,82 @@
+/*
+http://code.google.com/p/inferno-os/source/browse/libbio/bprint.c
+
+	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+	Revisions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com).  All rights reserved.
+	Revisions Copyright © 2010 Google Inc.  All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#include	<u.h>
+#include	<libc.h>
+#include	<bio.h>
+
+int
+Bprint(Biobuf *bp, char *fmt, ...)
+{
+	int n;
+	va_list arg;
+
+	va_start(arg, fmt);
+	n = Bvprint(bp, fmt, arg);
+	va_end(arg);
+	return n;
+}
+
+static int
+bflush(Fmt *f)
+{
+	Biobuf *bp;
+	
+	if(f->stop == nil)
+		return 0;
+
+	bp = f->farg;
+	bp->ocount = (char*)f->to - (char*)f->stop;
+	if(Bflush(bp) < 0) {
+		f->stop = nil;
+		f->to = nil;
+		return 0;
+	}
+	f->to = (char*)f->stop + bp->ocount;
+	
+	return 1;
+}
+
+int
+Bvprint(Biobuf *bp, char *fmt, va_list arg)
+{
+	int n;
+	Fmt f;
+	
+	memset(&f, 0, sizeof f);
+	fmtlocaleinit(&f, nil, nil, nil);
+	f.stop = bp->ebuf;
+	f.to = (char*)f.stop + bp->ocount;
+	f.flush = bflush;
+	f.farg = bp;
+
+	n = fmtvprint(&f, fmt, arg);
+
+	if(f.stop != nil)
+		bp->ocount = (char*)f.to - (char*)f.stop;
+
+	return n;
+}