function::user_string_n(3) Retrieves string of given length from user space

SYNOPSIS


1) user_string_n:string(addr:long,n:long)

2) user_string_n:string(addr:long,n:long,err_msg:string)

ARGUMENTS

addr

the user space address to retrieve the string from

n

the maximum length of the string (if not null terminated)

err_msg

the error message to return when data isn't available

DESCRIPTION

1) 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.

2) Returns the C string of a maximum given length from a given user space address. Returns the given error message string on the rare cases when userspace data is not accessible at the given address.

LAST SEARCHED