strncpy(string,"last: beacon, source: ",MESSAGE_MAX);
for(i=0;i<ADDR_LEN;i++)
snprintf(&string[22+3*i],4,"%02x%c",sta->addr[i],
strncpy(string,"last: beacon, source: ",MESSAGE_MAX);
for(i=0;i<ADDR_LEN;i++)
snprintf(&string[22+3*i],4,"%02x%c",sta->addr[i],