kernel: Add version getter

src/kernel/bitcoinkernel.cpp

@@ -5,6 +5,7 @@
 #include <kernel/bitcoinkernel.h>
 
 #include <chain.h>
+#include <clientversion.h>
 #include <coins.h>
 #include <consensus/amount.h>
 #include <consensus/validation.h>
@@ -385,6 +386,13 @@ const CBlockUndo* cast_const_block_undo(const kernel_BlockUndo* undo)
 
 } // namespace
 
+kernel_Version* kernel_get_version()
+{
+    const auto version_str{FormatFullVersion()};
+    auto version = new kernel_Version{version_str.data(), version_str.length()};
+    return version;
+}
+
 kernel_Transaction* kernel_transaction_create(const unsigned char* raw_transaction, size_t raw_transaction_len)
 {
     try {
@@ -396,6 +404,13 @@ kernel_Transaction* kernel_transaction_create(const unsigned char* raw_transacti
     }
 }
 
+void kernel_version_destroy(kernel_Version* version)
+{
+    if (version) {
+        delete version;
+    }
+}
+
 void kernel_transaction_destroy(kernel_Transaction* transaction)
 {
     if (transaction) {

src/kernel/bitcoinkernel.h

@@ -435,6 +435,15 @@ typedef struct {
     size_t size;
 } kernel_ByteArray;
 
+typedef struct {
+    const char* version;
+    size_t version_len;
+} kernel_Version;
+
+kernel_Version* kernel_get_version();
+
+void kernel_version_destroy(kernel_Version* version);
+
 /** @name Transaction
  * Functions for working with transactions.
  */