On Mon, Dec 17, 2012 at 6:13 PM, Stuart Henderson <s...@spacehopper.org> wrote: > On 2012-12-17, sven falempin <sven.falem...@gmail.com> wrote: >> Hello misc readers, >> >> First, openBSD threads are awesome for debugging. >> The trivial topic, >> echo -ne "\x00" | nc XXXX port >> send a null byte with a GNU echo. >> >> Echo in openbsd does not have -e (and does not warn whan i try it ..) >> >> Noob question: >> How to send a null byte over netcat ? am i forced to use perl ? > > you can use octal with echo(1) or printf(1).
echo(1) is BSD echo (no backslash sequences) ksh echo is XSI + BSD > > $ echo -n '\000' | hexdump -C > 00000000 00 |.| > 00000001 > > $ printf '\000' | hexdump -C > 00000000 00 |.| > 00000001
