| 809 | } |
| 810 | |
| 811 | bool CNetAddr::IsValid() const |
| 812 | { |
| 813 | // Cleanup 3-byte shifted addresses caused by garbage in size field |
| 814 | // of addr messages from versions before 0.2.9 checksum. |
| 815 | // Two consecutive addr messages look like this: |
| 816 | // header20 vectorlen3 addr26 addr26 addr26 header20 vectorlen3 addr26 addr26 addr26... |
| 817 | // so if the first length field is garbled, it reads the second batch |
| 818 | // of addr misaligned by 3 bytes. |
| 819 | if (memcmp(ip, pchIPv4+3, sizeof(pchIPv4)-3) == 0) |
| 820 | return false; |
| 821 | |
| 822 | // unspecified IPv6 address (::/128) |
| 823 | unsigned char ipNone[16] = {}; |
| 824 | if (memcmp(ip, ipNone, 16) == 0) |
| 825 | return false; |
| 826 | |
| 827 | // documentation IPv6 address |
| 828 | if (IsRFC3849()) |
| 829 | return false; |
| 830 | |
| 831 | if (IsIPv4()) |
| 832 | { |
| 833 | // INADDR_NONE |
| 834 | uint32_t ipNone = INADDR_NONE; |
| 835 | if (memcmp(ip+12, &ipNone, 4) == 0) |
| 836 | return false; |
| 837 | |
| 838 | // 0 |
| 839 | ipNone = 0; |
| 840 | if (memcmp(ip+12, &ipNone, 4) == 0) |
| 841 | return false; |
| 842 | } |
| 843 | |
| 844 | return true; |
| 845 | } |
| 846 | |
| 847 | bool CNetAddr::IsRoutable() const |
| 848 | { |
no outgoing calls
no test coverage detected