reading in duckdb filepath as arg and opening the database

src/main.c

@@ -1,6 +1,28 @@
+#include <duckdb.h>
 #include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char** argv){
+    printf("Hello from HardCompound!\n");
+
+    if(argc < 2){
+        printf("You need to specify a duckdb file path! Terminating!\n");
+        exit(1);
+    }
+    printf("First argument: %s", argv[1]);
+
+    duckdb_database db;
+    if(duckdb_open(argv[1], &db) == DuckDBError){
+        printf("Error opening duckdb file, terminating!");
+        exit(2);
+    }
+
+    duckdb_connection conn;
+    if(duckdb_connect(db, &conn) == DuckDBError){
+        printf("Error connecting to the duckdb database! Terminating!");
+        exit(3);
+    }
+
 
-int main(){
-    printf("Hello World");
     return 0;
 }