课程设计 LINUX

#include "stdio.h"

#include "string.h"

#include "conio.h"

#include "stdlib.h"

#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*/

}OSUFD_OPENMODE;

OSUFD *ufd[MAXCHILD]; /*ufd and ufd own files*/

OSUFD_LOGIN ufd_lp;

int ucount=0; /*the count of mfd's ufds*/

int fcount[MAXCHILD]; /*the count of ufd's files*/

int loginsuc=0; /*whether login successfully*/

char username[MAXNAME]; /*record login user's name22*/

char dirname[MAXNAME];/*record current directory*/

int fpaddrno[MAX]; /*record file physical address num*/

OSUFD_OPENMODE ifopen[MAXCHILD][MAXCHILD]; /*record file open/close*/

int wgetchar; /*whether getchar()*/

FILE *fp_mfd,*fp_ufd,*fp_file_p,*fp_file;

void clrscr()

{

system("cls");

}