Confirm sender command instead of echoing

Fix indentation

Exit ungracefully on Minix

Revert previous commit since Minix is in no shape to run this

Don't rely on `poll()`'s `EINTR` for exit

Test on Minix 3.3.0 i386

Didn't realize that Nico's Makefile is already compatible with GAHNOO make

Be c89 friendly

Conform more closely to FreeBSD STYLE(9)

Compile more cleanly on FreeBSD

Fix `-Wmissing-braces` on gcc 4.8.4

GCC bug 53119 : https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119

Apply Nico's makefile-template

Fix `helpers.c` not compiling on FreeBSD

Add -D_XOPEN_SOURCE=600 in Makefile

Finish rest of the error reporting

Move helpers functions into their own file and beautify some error reporting and some clean ups

Another day, another design which might actually work

Somewhat broken implementation of client_send

We need to redesign everything again it seems

Implement reader writer lock

Get rid of `poll_mutex`