libc/net/getaddrinfo.c

1083 	struct sockaddr_in *sa4;
1111 		sa4 = (struct sockaddr_in *)sa;
1113 		if (((u_char *)&sa4->sin_addr)[0] == 169 &&
1114 		    ((u_char *)&sa4->sin_addr)[1] == 254)
1117 		if (((u_char *)&sa4->sin_addr)[0] == 10 ||
1118 		    (((u_char *)&sa4->sin_addr)[0] == 172 &&
1119 		     (((u_char *)&sa4->sin_addr)[1] & 0xf0) == 16) ||
1120 		    (((u_char *)&sa4->sin_addr)[0] == 192 &&
1121 		     ((u_char *)&sa4->sin_addr)[1] == 168))
1124 		if (((u_char *)&sa4->sin_addr)[0] == 127)