function::user_string_n
名称
function::user_string_n — Retrieves string of given length from user space
Synopsis
user_string_n:string(addr:long,n:long)
Arguments
addr- the user space address to retrieve the string from
n- the maximum length of the string (if not null terminated)
Description
Returns the C string of a maximum given length from a given user space address. Reports an error on the rare cases when userspace data is not accessible at the given address.
