1 #! /bin/sh 2 ## Like "rcp" but uses netcat on a high port. 3 ## do "ncp targetfile" on the RECEIVING machine 4 ## then do "ncp sourcefile receivinghost" on the SENDING machine 5 ## if invoked as "nzp" instead, compresses transit data. 6 7 ## pick your own personal favorite port, which will be used on both ends. 8 ## You should probably change this for your own uses. 9 MYPORT=23456 10 11 ## if "nc" isn't systemwide or in your PATH, add the right place 12 # PATH=${HOME}:${PATH} ; export PATH 13 14 test "$3" && echo "too many args" && exit 1 15 test ! "$1" && echo "no args?" && exit 1 16 me=`echo $0 | sed 's+.*/++'` 17 test "$me" = "nzp" && echo '[compressed mode]' 18 19 # if second arg, it's a host to send an [extant] file to. 20 if test "$2" ; then 21 test ! -f "$1" && echo "can't find $1" && exit 1 22 if test "$me" = "nzp" ; then 23 compress -c < "$1" | nc -v -w 2 $2 $MYPORT && exit 0 24 else 25 nc -v -w 2 $2 $MYPORT < "$1" && exit 0 26 fi 27 echo "transfer FAILED!" 28 exit 1 29 fi 30 31 # fall here for receiver. Ask before trashing existing files 32 if test -f "$1" ; then 33 echo -n "Overwrite $1? " 34 read aa 35 test ! "$aa" = "y" && echo "[punted!]" && exit 1 36 fi 37 # 30 seconds oughta be pleeeeenty of time, but change if you want. 38 if test "$me" = "nzp" ; then 39 nc -v -w 30 -p $MYPORT -l < /dev/null | uncompress -c > "$1" && exit 0 40 else 41 nc -v -w 30 -p $MYPORT -l < /dev/null > "$1" && exit 0 42 fi 43 echo "transfer FAILED!" 44 # clean up, since even if the transfer failed, $1 is already trashed 45 rm -f "$1" 46 exit 1 47
