Update main.c

partially fix issue 8
Update do_recv.c

fix #8
Update do_send.c

updated codebase to better fix #8
Update do_send.c

small fix
Update do_recv.c

updated codebase to fix #8
Update do_recv.c

small fixes
Update do_recv.c
Update do_send.c
Update do_recv.c

small fixes
Update main.c

removed scanf
Update do_send.c

small fixes
Merge branch 'experimental' of https://github.com/polslinux/LanDND into experimental
updated changelog
CHANGELOG:
* fixed some bugs;
* code improvement;