[dtrace-discuss] how to get scratch buffer in dtrace.

[Chip Bennett]

Unlike copyin and copyinstr, the scratch buffer for copyinto needs to 
have been created ahead of time, i.e. with alloca().

Chip

wan_jm wrote:
> the Subroutines copyinto copies data at user address to scratch buffer, but how can i get the buffer used by the 3rd argument in copyinto;
>
> thanks.
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