document new choose screen properly

[disorder] / lib / sink.c

diff --git a/lib/sink.c b/lib/sink.c
index 245ee26b6761261126a7acb38d12bf4a236839fe..e904005d4c654bfb498ac9df850f29b9e4ed8fe5 100644 (file)
--- a/lib/sink.c
+++ b/lib/sink.c
@@ -1,6 +1,6 @@
 /*
  * This file is part of DisOrder
- * Copyright (C) 2004 Richard Kettlewell
+ * Copyright (C) 2004, 2007, 2008 Richard Kettlewell
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -131,6 +131,22 @@ struct sink *sink_dynstr(struct dynstr *output) {
   return (struct sink *)s;
 }
 
+/* discard sink **************************************************************/
+
+static int sink_discard_write(struct sink attribute((unused)) *s,
+                             const void attribute((unused)) *buffer,
+                             int nbytes) {
+  return nbytes;
+}
+
+/** @brief Return a sink which discards all output */
+struct sink *sink_discard(void) {
+  struct sink *s = xmalloc(sizeof *s);
+
+  s->write = sink_discard_write;
+  return s;
+}
+
 /*
 Local Variables:
 c-basic-offset:2