src/temp/__randname.c

   1 #include <time.h>
   2 #include <stdint.h>
   3
   4 /* This assumes that a check for the
   5    template size has already been made */
   6 char *__randname(char *template)
   7 {
   8         int i;
   9         struct timespec ts;
  10         unsigned long r;
  11
  12         __clock_gettime(CLOCK_REALTIME, &ts);
  13         r = ts.tv_nsec*65537 ^ (uintptr_t)&ts / 16 + (uintptr_t)template;
  14         for (i=0; i<6; i++, r>>=5)
  15                 template[i] = 'A'+(r&15)+(r&16)*2;
  16
  17         return template;
  18 }