In file included from /root/badvpn/misc/balloc.h:42:0,
from /root/badvpn/socks_udp_client/SocksUdpClient.c:33:
/root/badvpn/socks_udp_client/SocksUdpClient.c: In function ‘connection_send’:
/root/badvpn/socks_udp_client/SocksUdpClient.c:439:24: error: ‘o’ undeclared (first use in this function)
ASSERT(data_len <= o->udp_mtu)