CliInitRun

Set up a Process to be a shell from initial packet

This function initializes a Process and CLI structure for a new shell, from parameters in an initial packet passed by the system (Run, System(), Execute()). As of V47, also the initial CLI and a shell created through NewCLI is initialized through this vector, and all other forms of shell initialization are obsolete and not requested by the Os anymore. The format of the data in the packet is purposely not defined. The setup includes all the normal fields in the structures that are required for proper operation (current directory, paths, input streams, etc.).

It returns a set of flags containing information about what type of shell invocation this is.

Definitions for the values of fn:

If Bit 31 is 0, then you must check IoErr() to determine if an error occurred. If IoErr() returns a pointer to your Process, there has been an error, and you should clean up and exit. The packet will have already been returned by CliInitRun(). If it isn't a pointer to your Process and Bit 31 is 0, you should wait before replying the packet until after you've loaded the first command (or when you exit). This helps avoid disk "gronking" with the Run command.

If Bit 31 is 1, then if Bit 3 is one, ReplyPkt() the packet immediately (Asynch System()), otherwise wait until your shell exits (Sync System(), Execute()).

packet

the initial packet sent to your Process MsgPort

fn

flags or a pointer

ReplyPkt(), WaitPkt(), System(), Execute(), IoErr()