file_transfer_db.cpp, condor_auth_x509.cpp, and schedd.cpp, same --> command.cpp is not. --> done. need double-check. confusing to_sinful() and get_hostname() produces an error that is hard to debug. be sure to check by comparing with git history. +Qmgmt, StdUnivSock and soap all have IPv4 data structure. have a look! + {section: Socket connections that do not use class Sock} StdUnivSock calls do_connect() (condor_util_lib/do_connect.c) to establish connection with the scheduler. Entire code path uses IPv4 specific constant and functions. Should I just convert them or introduce another socket class?