X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/disorder/blobdiff_plain/6049fe0e789884ac0589190495d68e470c0fe19c..d8b957853160200fe6b00d8c0e8c61a3f62ecd7c:/lib/sink.h

diff --git a/lib/sink.h b/lib/sink.h
index 6134501..aab645b 100644
--- a/lib/sink.h
+++ b/lib/sink.h
@@ -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
@@ -24,6 +24,8 @@
 #ifndef SINK_H
 #define SINK_H
 
+#include <stdarg.h>
+
 struct dynstr;
 
 /** @brief Sink type
@@ -50,6 +52,12 @@ struct sink *sink_stdio(const char *name, FILE *fp);
 struct sink *sink_dynstr(struct dynstr *output);
 /* return a sink which appends to @output@. */
 
+struct sink *sink_discard(void);
+/* return a sink which junks everything */
+
+struct sink *sink_error(void);
+/* return a sink which fails all writes */
+
 int sink_vprintf(struct sink *s, const char *fmt, va_list ap);
 int sink_printf(struct sink *s, const char *fmt, ...)
   attribute((format (printf, 2, 3)));