Typedefs starting with `t' in Net2

• tcflag_t sys/termios.h:177
• tcp_seq netinet/tcp.h:36
• thread_t vm/kern_lock.c:75
• time_t sys/types.h:85
• tpcb_struct netiso/tp.trans:126
• tp_PCB_ netiso/tp_driver.c:60
• tpr_t sys/tprintf.h:36