and position.
(enum struct sftp_handle_type): Renamed constants to
HANDLE_TYPE_FILE and HANDLE_TYPE_DIRECTORY.
(handle_t): Deleted typedef.
(HANDLE_FILE): New macro replacing HANDLE_FD.
(sftp_read): New function. Keep track of position, and use
seek/pread only when appropriate.
(sftp_write): Likewise.

Rev: src/sftp/sftp-server.c:1.11