CNetAddr: Add IsBindAny method to check for INADDR_ANY

PIVX-Project · Aug 10, 2021 · 2a6abd8 · 2a6abd8
1 parent 4fdfa45
commit 2a6abd8
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Showing 2 changed files with 11 additions and 0 deletions.
diff --git a/src/netaddress.cpp b/src/netaddress.cpp
@@ -104,6 +104,16 @@ unsigned int CNetAddr::GetByte(int n) const
     return ip[15-n];
 }
 
+bool CNetAddr::IsBindAny() const
+{
+    const int cmplen = IsIPv4() ? 4 : 16;
+    for (int i = 0; i < cmplen; ++i) {
+        if (GetByte(i)) return false;
+    }
+
+    return true;
+}
+
 bool CNetAddr::IsIPv4() const { return m_net == NET_IPV4; }
 
 bool CNetAddr::IsIPv6() const { return m_net == NET_IPV6; }

diff --git a/src/netaddress.h b/src/netaddress.h
@@ -91,6 +91,7 @@ class CNetAddr
     bool SetInternal(const std::string& name);
 
     bool SetSpecial(const std::string& strName); // for Tor addresses
+    bool IsBindAny() const;                      // INADDR_ANY equivalent
     bool IsIPv4() const;                         // IPv4 mapped address (::FFFF:0:0/96, 0.0.0.0/0)
     bool IsIPv6() const;                         // IPv6 address (not mapped IPv4, not Tor)
     bool IsRFC1918() const;                      // IPv4 private networks (10.0.0.0/8, 192.168.0.0/16, 172.16.0.0/12)