X-Git-Url: https://git.distorted.org.uk/~mdw/disorder/blobdiff_plain/5aff007d8fcfb4c6cc3c3627ae15f45562db7a0d..89fa4d7bfe1d02662a65c4d16faa8a67a3e1041b:/lib/sink.h

diff --git a/lib/sink.h b/lib/sink.h
index cde7161..aab645b 100644
--- a/lib/sink.h
+++ b/lib/sink.h
@@ -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)));