FUNCTION::USERSTRIN(3stString and data retrieving FUNCTION::USERSTRIN(3stap)

NAME
       function::userstringwarn - Retrieves string from user space

SYNOPSIS
       1) userstringwarn:string(addr:long)

       2) userstringwarn:string(addr:long,warnmsg:string)

ARGUMENTS
       addr
           the user space address to retrieve the string from

       warnmsg
           the warning message to return when data isn't available

DESCRIPTION
       1) Returns the null terminated C string from a given user space memory
       address. Reports "" on the rare cases when userspace data is not
       accessible and warns (but does not abort) about the failure.

       2) Returns the null terminated 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.

SEE ALSO
       tapset::uconversions(3stap)



SystemTap Tapset Reference         June 2018       FUNCTION::USERSTRIN(3stap)