io. From ftp SSL draft:
PORT w,x,y,z,a,b -------------------------------------------->
<-------------------------------------------------------- 200
STOR file --------------------------------------------------->
socket()
bind()
<-------------------------------------------------------- 150
accept() <---------- connect()
TLSneg() <----------> TLSneg()
TLSwrite() ----------> TLSread()
TLSshutdown() -------> TLSshutdown()
close() ----------> close()
<-------------------------------------------------------- 226
Both accept and TLSnegotation should occur after 150 response has been sent to client. But I guess we can't blame you for supporting those servers
