+const char *FS_FileWithoutPath (const char *in);
+const char *FS_FileExtension (const char *in);
+int FS_CheckNastyPath (const char *path, qboolean isgamedir);
+qboolean FS_CheckGameDir(const char *gamedir);
+qboolean FS_ChangeGameDirs(int numgamedirs, char gamedirs[][MAX_QPATH], qboolean complain, qboolean failmissing);
+qboolean FS_IsRegisteredQuakePack(const char *name);
+int FS_CRCFile(const char *filename, size_t *filesizepointer);
+void FS_Rescan(void);