int main(){ //主函数
char command[100];
char *args[1000];
int size, i;
char value[1050];
char shellname[1050];
//初始化，增加环境变量
getcwd(first, 999); //获取当前目录
strcpy(value, "shell=");
strcpy(shellname, first);
strcat(shellname, "/myshell");
strcat(value, shellname);
putenv(value);
while(true){
type_prompt(); //输出命令提示符
//读取指令
size = read_command(command, args, stdin);
//分词并调用指令
backstage(command, args, size);
//释放内存
clear_command(args, size);
}
}
int myshell(char *args[], int size){
FILE *fp;
char command[100];
char *argv[1000];
char s[1000];
if(size == 0){//必须有一个参数
printf("myshell：没有参数\n");
return false;
}
fp = fopen(args[0], "r");
if(fp == NULL){
printf("打开文件失败\n");
return false;
}
while(!feof(fp)){
//逐行读取指令
size = read_command(command, argv, fp);
//判断是否已经读取到文件末尾
if(size == -1) break;
//调用指令
backstage(command, argv, size);
//释放内存
clear_command(argv, size);
}
fclose(fp);
return 1;
}
void backstage(char *command, char *args[], int size){
int i = 0, j;
pid_t pid;
int cnt = 0;
//查看是否存在&
for(i = 0; i < size; i++)
if(strcmp(args[i], "&") == 0)
break;
//若没有，则直接调用judge_utility
if(i == size){
redirection(command, args, size);
return;
}
//若有，则创建子进程
pid = fork();
while(pid < 0){ //若创建子进程失败，则不断创建
pid = fork();
cnt++;
if(cnt >= 100) break;
}
if(cnt >= 100){//创建子进程失败
printf("创建子进程失败！\n");
return;
}
if(pid == 0){
jobID++;
//在子进程中调用功能函数
printf("[%d]%d\n", jobID, getpid());
redirection(command, args, i);
printf("[%d]\tDone\t%s", jobID, command);
//调用完成
for(j = 0; j < i; j++)
printf(" %s", args[j]);
printf("\n");
jobID--;
//子进程完成后结束该进程
exit(0);
}else{
if(i == size - 1) return;
else{
//截取字符串后递归调用该函数
backstage(args[i + 1], args + i + 2, size - i - 2);
return;
}
}
}
int main()
{
User new_user; //初始化用户信息
new_user.username = "******";
new_user.password = "******";
user.push_back(new_user);
string username;
string password;
string command;
string subcommand;
string temp_path;
char t;
init();
save();
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY|FOREGROUND_GREEN);
cout << "welcome to system" << endl;
cout << "please login" << endl;
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY|FOREGROUND_BLUE|FOREGROUND_GREEN|FOREGROUND_RED);
while (1)
{
username = "";
password = "";
cout << "username:"******"password:"******"username or password error" << endl;
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY|FOREGROUND_BLUE|FOREGROUND_GREEN|FOREGROUND_RED);
}
}
system("cls");
getline(cin, command);
while (1)
{
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY|FOREGROUND_RED|FOREGROUND_BLUE);
cout << username;
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY|FOREGROUND_GREEN|FOREGROUND_RED);
cout << "@filesystem ";
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY|FOREGROUND_BLUE);
if (path.size() == 1)
cout << "/";
else
{
for (auto p : path)
{
if (p == 0)
continue;
cout << "/" << catalog[p].info.name;
}
}
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY|FOREGROUND_BLUE|FOREGROUND_GREEN|FOREGROUND_RED);
cout << endl << ">";
getline(cin, command);
stringstream command_stream(command);
command_stream >> subcommand;
if (subcommand == "")
{
}
else if (subcommand == "cd")
{
change_path(command);
}
else if (subcommand == "ls")
{
show_folder(command);
}
else if (subcommand == "create")
{
create(command);
}
else if (subcommand == "mkdir")
{
create_folder(command);
}
else if (subcommand == "delete")
{
delete_file(command);
}
else if (subcommand == "edit")
{
edit(command);
}
else if (subcommand == "search")
{
search_file(command);
}
else if (subcommand == "open")
{
open_file(command);
}
else if (subcommand == "close")
{
close_file(command);
}
else if (subcommand == "cp")
{
copy(command);
}
else if (subcommand == "mv")
{
move(command);
}
else if (subcommand == "bs"){
backstage();
}
else if (subcommand == "l"){
l();
}
else if (subcommand == "info"){
info();
}
else if (subcommand == "format")
{
remove("disk.txt");
remove("diskdata.txt");
init();
}
else
{
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY|FOREGROUND_RED);
cout << "command not found" << endl;
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY|FOREGROUND_BLUE|FOREGROUND_GREEN|FOREGROUND_RED);
}
cout << endl;
save();
command = "";
subcommand = "";
}
}
int main()
{
string username;
string password;
string command;
string subcommand;
string temp_path;
char t;
load_user();
init();
save();
while (1)
{
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_INTENSITY | FOREGROUND_GREEN);
cout << "welcome to system" << endl;
cout << "please login" << endl;
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_INTENSITY | FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED);
while (1)
{
username = "";
password = "";
cout << "username:"******"password:"******"username or password error" << endl;
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_INTENSITY | FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED);
}
}
system("cls");
getline(cin, command);
while (1)
{
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_BLUE);
cout << username;
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_RED);
cout << "@filesystem ";
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_INTENSITY | FOREGROUND_BLUE);
if (path.size() == 1)
cout << "/";
else
{
for (auto p : path)
{
if (p == 0)
continue;
cout << "/" << catalog[p].info.name;
}
}
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_INTENSITY | FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED);
cout << endl << ">";
getline(cin, command);
stringstream command_stream(command);
command_stream >> subcommand;
if (subcommand == "")
{
}
else if (subcommand == "cd")
{
change_path(command);
}
else if (subcommand == "ls")
{
show_folder(command);
}
else if (subcommand == "create")
{
create(command);
}
else if (subcommand == "mkdir")
{
create_folder(command);
}
else if (subcommand == "delete")
{
delete_file(command);
}
else if (subcommand == "edit")
{
edit(command);
}
else if (subcommand == "search")
{
search_file(command);
}
else if (subcommand == "open")
{
open_file(command);
}
else if (subcommand == "close")
{
close_file(command);
}
else if (subcommand == "cp")
{
copy(command);
}
else if (subcommand == "mv")
{
move(command);
}
else if (subcommand == "bs"){
backstage();
}
else if (subcommand == "l"){
l();
}
else if (subcommand == "info"){
info();
}
else if (subcommand == "format")
{
char c;
cout << "Are you sure you want to format the disk?(y/N)";
c = _getch();
if (c == 'n' || c == 'N' || c == '\r')
{
cout << c << endl;
continue;
}
else if (c == 'y' || c == 'Y')
{
remove("disk.txt");
remove("diskdata.txt");
init();
cout << c << "\nformat complete" << endl;
}
}
else if (subcommand == "useradd")
{
add_user(command);
}
else if (subcommand == "userdelete")
{
delete_user(command);
}
else if (subcommand == "passwd")
{
change_password(command);
}
else if (subcommand == "clear")
{
system("cls");
}
else if (subcommand == "exit")
{
system("cls");
break;
}
else
{
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_INTENSITY | FOREGROUND_RED);
cout << "command not found" << endl;
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_INTENSITY | FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED);
}
cout << endl;
save();
command = "";
subcommand = "";
}
}
}
