+#define FCGI_PARAM_REQUIRED (1 << 0)
+#define FCGI_PARAM_RECEIVED (1 << 1)
+#define FCGI_BOOL_T (1 << 2)
+#define FCGI_INT_T (1 << 3)
+#define FCGI_LONG_T (1 << 4)
+#define FCGI_DOUBLE_T (1 << 5)
+#define FCGI_STRING_T (1 << 6)
+#define FCGI_REQUIRED(x) ((x) | FCGI_PARAM_REQUIRED)
+#define FCGI_IS_REQUIRED(x) ((x) & FCGI_PARAM_REQUIRED)
+#define FCGI_RECEIVED(x) ((x) & FCGI_PARAM_RECEIVED)
+#define FCGI_TYPE(x) ((x) & ~(FCGI_PARAM_REQUIRED | FCGI_PARAM_RECEIVED))
+
+#define CONTROL_KEY_BUFSIZ 41
+
+/**
+ * An entry that describes an expected user parameter for parsing.
+ * To be used in conjunction with @see FCGI_ParseRequest.
+ */
+typedef struct FCGIValue {
+ /** The name of the key (from key/value pair) [in] **/
+ const char *key;
+ /** A pointer to a variable that will hold the parsed value [out] **/
+ void *value;
+ /** Bit flags that determine things like if the field is required and if it was received [in/out] **/
+ unsigned flags;
+} FCGIValue;
+
+/** The type of a user (unauthorised, normal, admin). **/
+typedef enum {USER_UNAUTH, USER_NORMAL, USER_ADMIN} UserType;
+
+/**Contextual information related to FCGI requests*/
+typedef struct
+{
+ /**The time of last valid user access possessing the control key**/
+ time_t control_timestamp;
+ /**A SHA-1 hash that is the control key, determining who is logged in**/
+ char control_key[CONTROL_KEY_BUFSIZ];
+ /**The received control key for the current request**/
+ char received_key[CONTROL_KEY_BUFSIZ];
+ /**The IPv4 address of the logged-in user**/
+ char control_ip[16];
+ /**Determines if the user is an admin or not**/
+ UserType user_type;
+ /**Name of the logged in user**/
+ char user_name[31];
+ /**User directory for the logged in user**/
+ char user_dir[BUFSIZ];
+ /**The name of the current module**/
+ const char *current_module;
+ /**For debugging purposes?**/
+ int response_number;
+} FCGIContext;
+
+/** The type definition of a module handler. **/