#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include"filesys.h"
unsigned short currentuser=65535;
char *command;
struct usergroup MFD; //主目录，所有的用户都在一各组里？？
char block_buf[BLOCKSIZE] ; //内存的块位图数组
char inode_buf [INODENUM] ;//内存中结点位图数组
FILE *fd; //文件类型指针
struct superblock *super;
struct userdir UFD;
struct linkgroup LGP;
char block_buff[BLOCKNUM];
char inode_buff[INODENUM];
FILE *fd1;
char * command1;
char * command2;
char * command3;
void print_help()
{
printf("\n\t\t\t help\n");
printf("\t\t format :creat a new file system\n");
printf("\t\t login :enter filesystem\n");
printf("\t\t logout :logout enter\n ");
printf("\t\t adduser :add user \n");
printf("\t\t createfile :create a file\n");
printf("\t\t writefile:write content to file\n");
printf("\t\t readfile :read content from file\n");
printf("\t\t copyfile: copy from one file to another\n");
printf("\t\t showfiles :list files\n");
printf("\t\t listuser :list users\n");
printf("\t\t removefile:delete files\n");
printf("\t\t removeuser:delete user\n");
printf("\t\t quit:exit filesystem\n");
printf("\t\t changepsw:change passward\n");
printf("\t\t refile:rename a file\n");
printf("\t\t createlink:create a link to a file\n");
printf("\t\t showlinks:show all links\n");
printf("\t\t linkfile:link to a file\n");
}
int main()
{ print_help();
int pid;
char yn;
int loginf=3;
fd1=fopen("filesysterm","r");//打开文件filesysterm, 并返回一个关联该文件的流
if(fd1==NULL)
{
printf("\n Disk has not format!! format now:(Y/N)\n");
scanf("%c",&yn);
if(yn=='y'||yn=='Y')
{
format();
printf("\n ------format completed------\n");
}
else
exit(0);
}
else{
printf("\n -------filesystem exist------\n");
printf("\n -------please press enter------\n");
fclose(fd1);
}
command=(char *)getinput('\n');
free(command);
load(); //-----------------------------?????????
while(loginf) //只有三次登陆机会
{ loginf--;
print_help(); //-------------实现选项的循环出现
printf("\n please enter the operation,login first \n");
command=(char *)getinput('\n');
if(!strcmp(command,"login"))
{printf("\n please enter your name \n");
command1=(char *)getinput('\n');
printf("\n please enter your passward \n");
command2=(char *)getinput('\n');
currentuser=login(command1,command2);
}
if(currentuser==65535)
{//printf("\n user not exist!\n");
printf("\n you have %d chances to login",loginf ,"\n");
continue;
}
else if(currentuser==65534)
{
//printf("\n name or password error\n");
printf("\n you have %d chances to login",loginf ,"\n");
continue;
}
else
{printf("LOGIN SUCCESSFUL!\n");
if(loginf==0)
loginf++;
break;
free(command);
}
}
if(loginf!=0)
{ while(1)
{ print_help();
printf("\n Please enter your command: \n");
command=(char *)getinput('\n');
if(!strcmp(command,"login"))
{ printf("\n Please enter your name \n");
command1=(char *)getinput('\n');
printf("\n Please enter your password\n");
command2=(char *)getinput('\n');
currentuser=login(command1,command2);
if(currentuser!=65535)
{
printf("LOGIN SUCCESSFUL!\n");
continue;
}
}
if(currentuser==65535)
{
printf("Please login first\n");
}
else
{
if(!strcmp(command,"quit"))
{exit(0);
}
else if (!strcmp(command,"logout"))
{ pid=logout();//令currentuser=65535
printf("LOGOUT SUCCESSFUL!\n");
}
else if(!strcmp(command,"createfile"))
{
printf("\n Please enter file name :\n");
command1=(char *)getinput('\n');
printf("\n Please enter file format :\n");
command2=(char *)getinput('\n');
int id1 =oct2dec(atoi(command2));
struct inode* pinode=makefile(currentuser,command1,id1);
if (pinode==NULL)//如果重名返回NULL
{
printf("%s The file has already exist!\n",command1);
}
else
{printf("\nThe file is created successful!\n");
}
}
else if(!strcmp(command,"showfiles"))
{ show_dir();
}
else if(!strcmp(command,"writefile"))
{
printf("\n Please enter file name\n");//请输入文件名
command1=(char *)getinput('\n');
//******************************
unsigned short inode_num=mapUFDinode(command1);
if(inode_num==MAPERR)
{ printf("\n The file does not eixst\n");
}
else
{ printf("\n please input the context ,# end\n");
char * context=(char *)getinput('#');
if(writefile(context,command1)==NULL)
{ printf("\n Write fail\n");}
else
{printf("\n Write successful\n");
}
}
}
else if(!strcmp(command,"readfile"))
{ printf("\n Please enter file name:\n");//请输入文件名
command1=(char *)getinput('\n');
char *context=(char *)readfile(command1);
if(context==NULL)
{ printf("\n The file does not exist \n");}//文件不存在
else
{printf("\n %s\n",context);}
}
else if(!strcmp(command,"copyfile"))
{
unsigned short j;
printf("\n Please enter name of the source file \n");
command1=(char *)getinput('\n');
printf("\n Please enter name of the distincting file \n");
command2=(char *)getinput('\n');
j=copy(command2,command1);
if(j==0)
{
printf("\n The dsitinct file does not exist\n");//目标文件不存在
}
if(j==1)
{
printf("\n The source file does not eixst\n");//源文件文件不存在
printf("\t\t\t\t 操作命令表\n\n");
printf("\t\t\t printhelp:\t显示帮助\n\n");
printf("\t\t\t format:\t建立一个新的文件系统\n\n");
printf("\t\t\t adduser:\t增加用户\n\n");
printf("\t\t\t createfile :\t建立新文件\n\n");
printf("\t\t\t writefile:\t写文件\n\n");
printf("\t\t\t readfile :\t读文件\n\n");
printf("\t\t\t copyfile :\t复制文件\n\n");
printf("\t\t\t showfiles:\t列出文件\n\n");
printf("\t\t\t listuser:\t列出用户\n\n");
printf("\t\t\t removefile:\t移除文件\n\n");
printf("\t\t\t removeuser:\t移除用户\n\n");
printf("\t\t\t login:\t\t登录文件系统\n\n");
printf("\t\t\t logout:\t注销登录，退出文件系统\n\n");
printf("\t\t\t quit:\t\t退出\n");
}
if(j==2)
{
printf("\n Copy successful!\n");//拷贝成功
}
if(j==3)
{
printf("\n Copy fail\n");//拷贝失败
}
}
else if(!strcmp(command,"removefile"))
{ unsigned short i;
printf("\n Please enter the name of file\n");//请输入文件名
command1=(char *)getinput('\n');
i=removefile(command1);
if(i==0)
{printf("\n The file does not exist\n");}//文件不存在
else if(i==1)
{printf("\n The file delete successful!\n");}//文件删除成功
else
{printf("\n You do not have the right of deleting a file \n");}//权限不对
}
else if(!strcmp(command,"adduser"))
{
printf("\n Please enter the name of user:\n");//请输入用户名
command1=(char *)getinput('\n');
printf("\n Please enter the group of user:\n");//请输入所在组名
command2=(char *)getinput('\n');
printf("\n please enter passward:\n");
command3=(char *)getinput('\n');
int i;
i=adduser(command1,command2,command3);
if(i==2)
{printf("\n You do not have the right of adding a user\n");}//权限不对,只有root用户才能添加新用户
else if(i==1)
{printf("\n Add user successful!\n");}//添加成功
else
{printf("\n Add
project.rar （46个子文件） 
myproject 
inodemanage.o 2KB writefile.c 2KB main.c 11KB copy.c 670B format.o 2KB adduser.c~ 2KB readfile.c~ 992B dir.c 3KB writefile.o 2KB filesys.h 6KB filesys.h~ 6KB format.c 2KB balloc.o 2KB rootuser.c 1KB readfile.c 1KB showdir.o 2KB login.c 1KB match.o 1KB inodemanage.c 2KB balloc.c 2KB filesys.o 25KB load.o 2KB makefile 1KB load.c 1005B copy.o 976B adduser.o 3KB showdir.c 1KB writefile.c~ 2KB filesysterm 1024KB rootuser.o 1KB match.c 634B main.o 13KB makefile1.o 2KB add.c 341B add.c~ 317B deleteuser.o 2KB login.o 1KB dir.o 2KB adduser.c 2KB deleteuser.c 786B deletefile.o 2KB readfile.o 1KB load.c~ 1007B main.c~ 11KB makefile1.c 2KB deletefile.c 1KB资源评论
