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cleaner implementation of random_mac{}

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This commit is contained in:
fduncanh
2021-08-03 23:19:46 -04:00
parent dc7dfc81d0
commit d30bc46e00
1 changed files with 7 additions and 10 deletions
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17
uxplay.cpp
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@@ -99,23 +99,20 @@ std::string find_mac () {
#define OCTETS 6
std::string random_mac () {
char str[3];
std::string mac_address = "";
int octet = rand() % 64;
for (int i = 0; i < OCTETS; i++) {
if (i == 0) {
octet = (octet << 1) + LOCAL;
octet = (octet << 1) + MULTICAST;
} else {
octet = rand() % 256;
mac_address = mac_address + ":";
}
octet = (octet << 1) + LOCAL;
octet = (octet << 1) + MULTICAST;
snprintf(str,3,"%02x",octet);
std::string mac_address = str;
for (int i = 1; i < OCTETS; i++) {
mac_address = mac_address + ":";
octet = rand() % 256;
snprintf(str,3,"%02x",octet);
mac_address = mac_address + str;
}
return mac_address;
}
void print_info (char *name) {
printf("UxPlay %s: An open-source AirPlay mirroring server based on RPiPlay\n", VERSION);
printf("Usage: %s [-n name] [-s wxh] [-p [n]]\n", name);