#define MAXNAME 25
/*the largest length of mfdname,ufdname,filename*/
#define MAXCHILD 50 /*the largest child*/
#define MAX (MAXCHILD*MAXCHILD)
/*the size of fpaddrno*/
typedef struct /*the structure of OSFILE*/
{int fpaddr; /*file physical address*/
int flength; /*file length*/
int fmode; /*file mode:0-Read Only;1-Write Only;2-Read and Write(default);*/
char fname[MAXNAME]; /*file name*/
} OSFILE;
typedef struct /*the structure of OSUFD*/
{char ufdname[MAXNAME]; /*ufd name*/
OSFILE ufdfile[MAXCHILD]; /*ufd own file*/
}OSUFD;
typedef struct /*the structure of OSUFD'LOGIN*/
{char ufdname[MAXNAME]; /*ufd name*/
char ufdpword[8]; /*ufd password*/
} OSUFD_LOGIN;
typedef struct /*file open mode*/
{int ifopen; /*ifopen:0-close,1-open*/
int openmode; /*0-read only,1-write only,2-read and write,3-initial*/
}OSUFD_OPENMODE;
void LoginF(); /*LOGIN FileSystem*/
void DirF(); /*Dir FileSystem*/
void CdF(); /*Change Dir*/
void CreateF(); /*Create File*/
void DeleteF(); /*Delete File*/
void ModifyFM(); /*Modify FileMode*/
void OpenF(); /*Open File*/
void CloseF(); /*Close File*/
void ReadF(); /*Read File*/
void WriteF(); /*Write File*/
void QuitF(); /*Quit FileSystem*/
void help();
