r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
bind$inet6(r0, &(0x7f0000000140)={0xa, 0x4e20, 0x0, @ipv4={'\x00', '\xff\xff', @empty}}, 0x1c)
connect$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20, 0x0, @empty}, 0x1c)
setsockopt$inet6_tcp_int(r0, 0x6, 0x0, &(0x7f0000000b80)=0x7f, 0x4)
setsockopt$inet6_tcp_int(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0)
sendmsg$inet6(r0, &(0x7f00000006c0)={0x0, 0x0, &(0x7f0000000540)=[{&(0x7f0000000100)=':', 0x1}], 0x1}, 0x0)
sendmmsg$inet6(r0, &(0x7f0000000ac0)=[{{0x0, 0x0, &(0x7f00000000c0)=[{&(0x7f0000000040)="cd", 0x1}], 0x1}}, {{0x0, 0x0, &(0x7f0000000600)=[{&(0x7f0000000340)='\r', 0x1}], 0x1}}, {{0x0, 0x0, &(0x7f0000000680)=[{&(0x7f0000000800)="c6", 0x1}], 0x1}}], 0x3, 0x80)