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.