function::user_string2
名称
function::user_string2 — Retrieves string from user space with alternative error string
Synopsis
user_string2:string(addr:long,err_msg:string)
Arguments
addr- the user space address to retrieve the string from
err_msg- the error message to return when data isn't available
Description
Returns the null terminated C string from a given user space memory address. Reports the given error message on the rare cases when userspace data is not accessible.
