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function::user_string2_n_warn


Name

function::user_string2_n_warn — Retrieves string from user space with alternative warning string

Synopsis

user_string2_n_warn:string(addr:long,n:long,warn_msg:string)

Arguments

addr
the user space address to retrieve the string from
n
the maximum length of the string (if not null terminated)
warn_msg
the warning message to return when data isn't available

Description

Returns up to n characters of a C string from a given user space memory address. Reports the given warning message on the rare cases when userspace data is not accessible and warns (but does not abort) about the failure.