net: use common rand()/srand() functions

[karo-tx-uboot.git] / net / link_local.c

diff --git a/net/link_local.c b/net/link_local.c
index 336286395be341f86c40bb8caeefc34a78e58e9d..582d0115b7673d7c9fabc11dfdafa20300d80815 100644 (file)
--- a/net/link_local.c
+++ b/net/link_local.c
@@ -56,6 +56,7 @@ static unsigned conflicts;
 static unsigned nprobes;
 static unsigned nclaims;
 static int ready;
+static unsigned int seed;
 
 static void link_local_timeout(void);
 
@@ -68,7 +69,7 @@ static IPaddr_t pick(void)
        unsigned tmp;
 
        do {
-               tmp = rand() & IN_CLASSB_HOST;
+               tmp = rand_r(&seed) & IN_CLASSB_HOST;
        } while (tmp > (IN_CLASSB_HOST - 0x0200));
        return (IPaddr_t) htonl((LINKLOCAL_ADDR + 0x0100) + tmp);
 }
@@ -78,7 +79,7 @@ static IPaddr_t pick(void)
  */
 static inline unsigned random_delay_ms(unsigned secs)
 {
-       return rand() % (secs * 1000);
+       return rand_r(&seed) % (secs * 1000);
 }
 
 static void configure_wait(void)
@@ -109,7 +110,7 @@ void link_local_start(void)
        }
        NetOurSubnetMask = IN_CLASSB_NET;
 
-       srand_mac();
+       seed = seed_mac();
        if (ip == 0)
                ip = pick();