#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 */