IP_Address::IP_Address(const String& p_string) {
clear();
if (p_string.find(":") >= 0) {
_parse_ipv6(p_string);
type = TYPE_IPV6;
} else {
_parse_ipv4(p_string, 0, &field8[0]);
type = TYPE_IPV4;
};
}
IP_Address::IP_Address(const String &p_string) {
clear();
if (p_string == "*") {
// Wildcard (not a valid IP)
wildcard = true;
} else if (p_string.find(":") >= 0) {
// IPv6
_parse_ipv6(p_string);
valid = true;
} else if (p_string.get_slice_count(".") == 4) {
// IPv4 (mapped to IPv6 internally)
field16[5] = 0xffff;
_parse_ipv4(p_string, 0, &field8[12]);
valid = true;
} else {
ERR_PRINT("Invalid IP address");
}
}
void IP_Address::_parse_ipv6(const String& p_string) {
static const int parts_total = 8;
int parts[parts_total] = {0};
int parts_count = 0;
bool part_found = false;
bool part_skip = false;
bool part_ipv4 = false;
int parts_idx = 0;
for (int i=0; i<p_string.length(); i++) {
CharType c = p_string[i];
if (c == ':') {
if (i == 0) {
continue; // next must be a ":"
};
if (!part_found) {
part_skip = true;
parts[parts_idx++] = -1;
};
part_found = false;
} else if (c == '.') {
part_ipv4 = true;
} else if ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F')) {
if (!part_found) {
parts[parts_idx++] = i;
part_found = true;
++parts_count;
};
} else {
ERR_EXPLAIN("Invalid character in IPv6 address: " + p_string);
ERR_FAIL();
};
};
int parts_extra = 0;
if (part_skip) {
parts_extra = parts_total - parts_count;
};
int idx = 0;
for (int i=0; i<parts_idx; i++) {
if (parts[i] == -1) {
for (int j=0; j<parts_extra; j++) {
field16[idx++] = 0;
};
continue;
};
if (part_ipv4 && i == parts_idx - 1) {
_parse_ipv4(p_string, parts[i], (uint8_t*)&field16[idx]); // should be the last one
} else {
_parse_hex(p_string, parts[i], (uint8_t*)&(field16[idx++]));
};
};
};
