Provided by: systemtap-doc_2.3-1ubuntu1.4_all 

NAME
function::inet_get_ip_source - Provide IP source address string for a kernel socket
SYNOPSIS
inet_get_ip_source:string(sock:long)
ARGUMENTS
sock
pointer to the kernel socket
SystemTap Tapset Reference March 2016 FUNCTION::INET_GET_I(3stap)