1  extern int
       2  bsd_sum_stream (FILE *stream, void *resstream, uintmax_t *length);
       3  
       4  extern int
       5  sysv_sum_stream (FILE *stream, void *resstream, uintmax_t *length);
       6  
       7  typedef int (*sumfn)(FILE *, void *, uintmax_t *);
       8  
       9  
      10  extern void
      11  output_bsd (char const *file, int binary_file, void const *digest,
      12              bool raw, bool tagged, unsigned char delim, bool args,
      13              uintmax_t length);
      14  
      15  extern void
      16  output_sysv (char const *file, int binary_file, void const *digest,
      17               bool raw, bool tagged, unsigned char delim, bool args,
      18               uintmax_t length);