1 files changed, 54 insertions, 0 deletions
diff --git a/src/libbio/bprint.c b/src/libbio/bprint.c
new file mode 100644
index 000000000..2e3867ae6
--- /dev/null
+++ b/src/libbio/bprint.c
@@ -0,0 +1,54 @@
+/*
+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.
+
+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, ...)
+{
+        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 == nil || 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;
+}