release/src/router/ppp/pppoecd/random.c

   1 #include <string.h>
   2 #include <sys/time.h>
   3 #include <stdlib.h>
   4 #include <sys/types.h>
   5 #include <unistd.h>
   6
   7 #if 0
   8 unsigned int get_mac_addr()
   9 {
  10         unsigned int ret;
  11         char wan_mac_str[80];
  12         char *ptr_1, *ptr_2;
  13
  14         strcpy(wan_mac_str, nvram_safe_get("wan_hwaddr"));
  15         ptr_1 = wan_mac_str;
  16         ptr_2 = ptr_1;
  17
  18         while(*ptr_2 != '\0')
  19         {
  20                 if(*ptr_2 == ':');
  21                         ptr_2++;
  22                 *ptr_1 = *ptr_2;
  23                 ptr_1 ++;
  24                 ptr_2 ++;
  25         }
  26
  27         //memcpy((char *)ret, &wan_mac_str[2], 4);
  28         ret = atoi(&wan_mac_str[6]);
  29         return ret;
  30 }
  31 #endif
  32
  33 void prng_init()
  34 {
  35         unsigned int seed;
  36         struct timeval t;
  37
  38         gettimeofday(&t, NULL);
  39         //seed = get_mac_addr() ^ t.tv_sec ^ t.tv_usec ^ getpid();
  40         seed = t.tv_sec ^ t.tv_usec ^ getpid();
  41         srand(seed);
  42 }