get a confirmation from user

some Blackfins have a small amount of One-Time-Programmable (OTP) memory on them. the memory is not part of the Blackfin memory map, it can only be accessed via on-chip functions. due to the nature of the memory (it cannot be reprogrammed) and the way the memory is handled/documented (it's pretty friggin confusing), i'd like to show a confirmation prompt to the user which explains what is going to happen (which can be bypassed with a --force option to the command for non-interactive sessions).

is there any common code to do this ? or do i have to write the small while
(1) { tstc()/getc()/ctrlc() } loop myself in order to get the "YES" string ? -mike
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