add zero value check (#1181)

target_chains/ethereum/contracts/contracts/entropy/Entropy.sol

@@ -81,6 +81,12 @@ abstract contract Entropy is IEntropy, EntropyState {
         address defaultProvider,
         bool prefillRequestStorage
     ) internal {
+        require(admin != address(0), "admin is zero address");
+        require(
+            defaultProvider != address(0),
+            "defaultProvider is zero address"
+        );
+
         _state.admin = admin;
         _state.accruedPythFeesInWei = 0;
         _state.pythFeeInWei = pythFeeInWei;

target_chains/ethereum/contracts/contracts/entropy/EntropyGovernance.sol

@@ -30,6 +30,8 @@ abstract contract EntropyGovernance is EntropyState {
      * Can only be called by either admin or owner.
      */
     function proposeAdmin(address newAdmin) public virtual {
+        require(newAdmin != address(0), "newAdmin is zero address");
+
         _authoriseAdminAction();
 
         _state.proposedAdmin = newAdmin;
@@ -78,6 +80,10 @@ abstract contract EntropyGovernance is EntropyState {
      * Emits an {DefaultProviderSet} event.
      */
     function setDefaultProvider(address newDefaultProvider) external {
+        require(
+            newDefaultProvider != address(0),
+            "newDefaultProvider is zero address"
+        );
         _authoriseAdminAction();
 
         address oldDefaultProvider = _state.defaultProvider;

target_chains/ethereum/contracts/contracts/entropy/EntropyUpgradable.sol

@@ -31,6 +31,13 @@ contract EntropyUpgradable is
         address defaultProvider,
         bool prefillRequestStorage
     ) public initializer {
+        require(owner != address(0), "owner is zero address");
+        require(admin != address(0), "admin is zero address");
+        require(
+            defaultProvider != address(0),
+            "defaultProvider is zero address"
+        );
+
         __Ownable_init();
         __UUPSUpgradeable_init();
 

target_chains/ethereum/contracts/contracts/executor/Executor.sol

@@ -49,6 +49,8 @@ contract Executor {
         uint16 _ownerEmitterChainId,
         bytes32 _ownerEmitterAddress
     ) {
+        require(_wormhole != address(0), "_wormhole is zero address");
+
         wormhole = IWormhole(_wormhole);
         lastExecutedSequence = _lastExecutedSequence;
         chainId = _chainId;