Merge reverse + overonion shell implementation

[overonion] / reverse_lib.h

diff --git a/reverse_lib.h b/reverse_lib.h
new file mode 100644 (file)
index 0000000..d8b0480
--- /dev/null
+++ b/reverse_lib.h
@@ -0,0 +1,15 @@
+#ifndef _OVERONION_REVERSE_LIB_H
+#define _OVERONION_REVERSE_LIB_H
+
+#include <stdio.h>
+
+/* Copy the contents of input_filename to output_stream backwards.
+ * input_filename must be a real file, not a pipe. */
+void reverse_file(const char* input_filename, FILE* output_stream);
+
+/* Save the contents of input_stream to a temporary file.  On EOF,
+ * emit them backwards to output_stream.  Temporary files go in
+ * $TMPDIR if set, /tmp otherwise. */
+void reverse_stream(FILE* input_stream, FILE* output_stream);
+
+#endif /* _OVERONION_REVERSE_LIB_H */