60 	unsigned int file_size = 0;  in main()  local
61 	socklen_t optlen = sizeof(file_size);  in main()
62 	if (getsockopt(sv[1], SOL_SOCKET, SO_SNDBUF, &file_size, &optlen))  in main()
64 	if (file_size < 1024)  in main()
65 		error_msg_and_skip("SO_SNDBUF too small: %u", file_size);  in main()
67 	file_size /= 4;  in main()
68 	if (file_size / 16 > page_size)  in main()
69 		file_size = page_size * 16;  in main()
70 	const unsigned int blen = file_size / 3;  in main()
71 	const unsigned int alen = file_size - blen;  in main()
79 	if (ftruncate(reg_in, file_size))  in main()
99 	assert(syscall(__NR_sendfile64, sv[1], reg_in, p_off, file_size + 1)  in main()
102 	       sv[1], reg_in, alen, file_size, file_size + 1, blen);  in main()