+#ifndef CMD_H
+#define CMD_H
+
+#include "qtypes.h"
+#include "qdefs.h"
+#include "com_list.h"
+
+struct cmd_state_s;
+
+// Command flags
+#define CF_NONE 0
+#define CF_CLIENT (1<<0) // cvar/command that only the client can change/execute
+#define CF_SERVER (1<<1) // cvar/command that only the server can change/execute
+#define CF_CLIENT_FROM_SERVER (1<<2) // command that the server is allowed to execute on the client
+#define CF_SERVER_FROM_CLIENT (1<<3) // command the client is allowed to execute on the server as a stringcmd
+#define CF_CHEAT (1<<4) // command or cvar that gives an unfair advantage over other players and is blocked unless sv_cheats is 1
+#define CF_ARCHIVE (1<<5) // cvar should have its set value saved to config.cfg and persist across sessions
+#define CF_READONLY (1<<6) // cvar cannot be changed from the console or the command buffer
+#define CF_NOTIFY (1<<7) // cvar should trigger a chat notification to all connected clients when changed
+#define CF_SERVERINFO (1<<8) // command or cvar relevant to serverinfo string handling
+#define CF_USERINFO (1<<9) // command or cvar used to communicate userinfo to the server
+#define CF_PERSISTENT (1<<10) // cvar must not be reset on gametype switch (such as scr_screenshot_name, which otherwise isn't set to the mod name properly)
+#define CF_PRIVATE (1<<11) // cvar should not be $ expanded or sent to the server under any circumstances (rcon_password, etc)
+#define CF_MAXFLAGSVAL ((1<<12) - 1) // used to determine if flags is valid
+// for internal use only!
+#define CF_DEFAULTSET (1<<30)
+#define CF_ALLOCATED (1<<31)
+
+#define CF_SHARED 3
+
+typedef void(*xcommand_t) (struct cmd_state_s *cmd);
+
+typedef enum cmd_source_s
+{
+ src_client, ///< came in over a net connection as a clc_stringcmd
+ ///< host_client will be valid during this state.
+ src_local ///< from the command buffer
+} cmd_source_t;
+
+typedef struct cmd_alias_s
+{
+ struct cmd_alias_s *next;
+ char name[MAX_ALIAS_NAME];
+ char *value;
+ qbool initstate; // indicates this command existed at init
+ char *initialvalue; // backup copy of value at init
+} cmd_alias_t;
+
+typedef struct cmd_function_s
+{
+ int flags;
+ struct cmd_function_s *next;
+ const char *name;
+ const char *description;
+ xcommand_t function;
+ qbool qcfunc;
+ qbool autofunc;
+ qbool initstate; // indicates this command existed at init
+} cmd_function_t;
+
+/// container for user-defined QC functions and aliases, shared between different command interpreters
+typedef struct cmd_userdefined_s
+{
+ // csqc functions - this is a mess
+ cmd_function_t *qc_functions;
+
+ // aliases
+ cmd_alias_t *alias;
+}
+cmd_userdefined_t;
+
+typedef struct cmd_buf_s
+{
+ llist_t start;
+ llist_t deferred;
+ llist_t free;
+ qbool wait;
+ size_t maxsize;
+ size_t size;
+ char tokenizebuffer[CMD_TOKENIZELENGTH];
+ int tokenizebufferpos;
+ double deferred_oldtime;
+ void *lock;
+} cmd_buf_t;
+
+/// command interpreter state - the tokenizing and execution of commands, as well as pointers to which cvars and aliases they can access
+typedef struct cmd_state_s
+{
+ struct mempool_s *mempool;
+
+ int argc;
+ const char *cmdline;
+ const char *argv[MAX_ARGS];
+ const char *null_string;
+ const char *args;
+ cmd_source_t source;
+
+ cmd_buf_t *cbuf;