sideband.hon commit ref_transaction_delete(): check that old_sha1 is not null_sha1 (6029459)
   1#ifndef SIDEBAND_H
   2#define SIDEBAND_H
   3
   4#define SIDEBAND_PROTOCOL_ERROR -2
   5#define SIDEBAND_REMOTE_ERROR -1
   6
   7int recv_sideband(const char *me, int in_stream, int out);
   8ssize_t send_sideband(int fd, int band, const char *data, ssize_t sz, int packet_max);
   9
  10#endif