49   unsigned short v = random_rand();  in contiki_prng_impl()  local
50   while (len > sizeof(v)) {  in contiki_prng_impl()
51     memcpy(buf, &v, sizeof(v));  in contiki_prng_impl()
52     len -= sizeof(v);  in contiki_prng_impl()
53     buf += sizeof(v);  in contiki_prng_impl()
54     v = random_rand();  in contiki_prng_impl()
57   memcpy(buf, &v, len);  in contiki_prng_impl()
68   u32_t v = LWIP_RAND();  in lwip_prng_impl()  local
69   while (len > sizeof(v)) {  in lwip_prng_impl()
70     memcpy(buf, &v, sizeof(v));  in lwip_prng_impl()
71     len -= sizeof(v);  in lwip_prng_impl()
72     buf += sizeof(v);  in lwip_prng_impl()
73     v = LWIP_RAND();  in lwip_prng_impl()
76   memcpy(buf, &v, len);  in lwip_prng_impl()