r0 = socket$inet_tcp(0x2, 0x1, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file1\x00', 0x882c2, 0x0)
mmap(&(0x7f0000000000/0xc00000)=nil, 0xc00000, 0x0, 0x1f012, r1, 0x0)
setsockopt$inet_tcp_buf(r0, 0x6, 0x1f, &(0x7f0000000140)=';', 0x1)