log_err_errno
log_err_errno("sendmsg failed");
log_err_errno("write failed sending msg to peer");
log_err_errno("send failed sending msg to peer");
log_err_errno("failed to send msg to peer");
log_err_errno("failed to send buf");
log_err_errno("failed to send buf");
log_err_errno("failed to send msg to peer");
log_err_errno("select failed");
log_err_errno("socket");
log_err_errno("Setting SO_REUSEADDR error");
log_err_errno("Setting SO_BROADCAST error");
log_err_errno("bind failed");
log_err_errno("error binding socket");
log_err_errno("Failed to set xfrm encap");
log_err_errno("Error opening socket");
log_err_errno("listen failed");
log_err_errno("Failed to set non-blocking option");
log_err_errno("Failed to set close-on-exec flag");
log_err_errno("Failed to set xfrm policy");
log_err_errno("Failed to send client status");
log_err_errno("select failed");
log_err_errno("accept failed");
log_err_errno("select failed");
log_err_errno("getsockopt(SO_ERROR) failed");
log_err_errno("Failed to create socket");
log_err_errno("Failed to set non-blocking option");
log_err_errno("Failed to connect to remote host");
log_err_errno("Failed to read IPC status from pipe");
log_err_errno("Failed to open netns path; can not switch netns");
log_err_errno("setsockopt(TCP_MD5SIG)");
log_err_errno("socket failed");
log_err_errno("ioctl(SIOCGIFINDEX) failed");
log_err_errno("setsockopt(SO_BINDTODEVICE)");
log_err_errno("getsockopt(SO_BINDTODEVICE)");
log_err_errno("setsockopt(IP_PKTINFO)");
log_err_errno("setsockopt(IPV6_RECVPKTINFO)");
log_err_errno("setsockopt(IP_RECVERR)");
log_err_errno("setsockopt(IPV6_RECVERR)");
log_err_errno("setsockopt(IP_UNICAST_IF)");
log_err_errno("setsockopt(IP_MULTICAST_IF)");
log_err_errno("setsockopt(IP_ADD_MEMBERSHIP)");
log_err_errno("setsockopt(IP_FREEBIND)");
log_err_errno("setsockopt(IPV6_FREEBIND)");
log_err_errno("setsockopt(SO_BROADCAST)");
log_err_errno("setsockopt(SO_REUSEPORT)");
log_err_errno("setsockopt(SO_REUSEADDR)");
log_err_errno("setsockopt(IP_TOS)");
log_err_errno("setsockopt(IPV6_TCLASS)");
log_err_errno("setsockopt(SO_DONTROUTE)");
log_err_errno("getsockname failed");
log_err_errno("getpeername failed");
log_err_errno("sendto failed");