Swiss File Knife
a command line
free external tools,
- download the free Swiss File Knife Base from Sourceforge. - open the Windows CMD command line, Mac OS X Terminal or Linux shell. - OS X : type mv sfk-mac-64.exe sfk and chmod +x sfk then ./sfk - Linux: type mv sfk-linux-64.exe sfk and chmod +x sfk then ./sfk OS X and Linux syntax may differ, check the help within the tool.
sfk udpsend host[:| ]port [options] [data] [data2] [...] send an UDP message and optionally receive replies. maximum message size is 2000 bytes. your network may limit this further, e.g. to 1500 or 1000 bytes. options -listen wait for a single reply, and dump it. -listen=n wait for so many replies and dump them. -listenall receive endless. -replyport=n specify replyport for listening. -timeout=n wait up to n msec for replies. -wide, -lean etc. change hex dump output format. for details, type "sfk hexdump" -flat print messages as plain text. -showip show target ip in [sent ...] info. input data format: 0x123456 a hex string which is converted to binary foo any other plain text is sent as is, but zero termination is NOT done automatically. all given data fragments are joined into one large block. how long the block can be is system dependent, but it must always stay below 2000 bytes. experimental multicast send if a multicast group address is given, like sfk udpsend 220.127.116.11 5000 testtext then udpsend tries to send a multicast message. this may or may not work depending on the OS, network interface, router and firewall settings, user rights and other programs running in parallel. chaining support small chain input data can be sent. to send continuous text over 1k do not use udpsend but tonetlog. type "sfk netlog" for more. aliases sfk udp like udpsend, but does not use chain input. sfk cudp call udp quickly without any output, same as sfk udp -quiet. web reference http://stahlworks.com/sfk-udpsend examples sfk udpsend localhost 5000 hello 0x00 send "hello" followed by a zero byte to localhost on port 5000 sfk udpsend 127.0.0.1:5000 -listen -replyport 5010 test send "test" to localhost on port 5000 and then receive a single reply on port 5010. sfk echo foo +udpsend localhost:5000 sends "foo" with (CR)LF to localhost port 5000. sfk echo foo +xed "/[eol]//" +udpsend localhost:5000 the same but strips (CR)LF line ending. use "sfk udpdump 5000 -text" to receive.
sfk is a free open-source tool, running instantly without installation efforts. no DLL's,
no registry changes - just get sfk.exe from the zip package and use it (binaries for
windows, linux and mac are included).
read more about all sfk functions here.