/sources/plan9/sys/src/cmd/fax/
      1713 1999-12-12 fax2modem.c
      3463 2006-03-31 fax2receive.c
      3318 2001-03-17 fax2send.c
      3062 1999-12-12 file.c
       535 2002-12-13 mkfile
      3875 2002-03-03 modem.c
      2510 1999-12-12 modem.h
      1097 1999-12-12 receive.c
      1101 2008-09-14 receiverc
       923 1999-12-12 send.c
      1245 2002-03-03 subr.c