Performs the following functions:

    o  Sends a user request to operator terminals

    o  Sends a user cancellation request to operator terminals

    o  Sends an operator reply to a user terminal

    o  Enables an operator terminal

    o  Displays the status of an operator terminal

    o  Initializes the operator log file

    Format

      SYS$SNDOPR  msgbuf ,[chan]

    C Prototype

      int sys$sndopr  (void *msgbuf, unsigned short int chan);