int FS_Printf(qfile_t* file, const char* format, ...);
int FS_VPrintf(qfile_t* file, const char* format, va_list ap);
int FS_Getc (qfile_t* file);
-void FS_UnGetc (qfile_t* file, unsigned char c);
+int FS_UnGetc (qfile_t* file, unsigned char c);
int FS_Seek (qfile_t* file, long offset, int whence);
long FS_Tell (qfile_t* file);
+void FS_Purge (qfile_t* file);
typedef struct fssearch_s
{