socket(AF_INET6, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_IP) = 3
bind(3, {sa_family=AF_INET6, sin6_port=htons(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_flowinfo=htonl(0), sin6_scope_id=0}, 28) = 0
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10628, si_uid=501, si_status=0, si_utime=0, si_stime=0} ---
socket(AF_CAN, SOCK_RAW|SOCK_CLOEXEC, 1) = 3
socket(AF_CAN, SOCK_DGRAM|SOCK_CLOEXEC, 6) = -1 EPROTONOSUPPORT (Protocol not supported)
socket(AF_RDS, SOCK_SEQPACKET|SOCK_CLOEXEC, 0) = -1 EAFNOSUPPORT (Address family not supported by protocol)
socket(AF_ALG, SOCK_SEQPACKET|SOCK_CLOEXEC, 0) = 3
socket(AF_INET6, SOCK_DGRAM|SOCK_CLOEXEC, IPPROTO_IP) = 3
socket(AF_INET6, SOCK_DGRAM|SOCK_CLOEXEC, IPPROTO_IP) = 3
socket(AF_INET6, SOCK_DGRAM|SOCK_CLOEXEC, IPPROTO_IP) = 3
socket(AF_INET6, SOCK_DGRAM|SOCK_CLOEXEC, IPPROTO_IP) = 3
socket(AF_INET6, SOCK_DGRAM|SOCK_CLOEXEC, IPPROTO_IP) = 3
socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_SCTP) = 3
socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_SCTP) = 3
socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_SCTP) = 3
socket(AF_ALG, SOCK_SEQPACKET|SOCK_CLOEXEC, 0) = 3
bind(3, {sa_family=AF_ALG, sa_data="hash\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0sha256\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 88) = 0
accept4(3, NULL, NULL, SOCK_CLOEXEC)    = 4
sendto(4, "abc", 3, 0, NULL, 0)         = -1 ENOKEY (Required key not available)
+++ exited with 2 +++