问如何在终端上以星号(*)的形式显示输入密码

EN

#include <termios.h>

struct termios term;

/* Disable echo input characters and buffered input by disabling ICANON*/
static void disable_echo() {
    struct termios new;
    if (tcgetattr(fileno(stdin), &term) != 0) {
        perror("tcgetattr failed");
        exit(-1);
    }

    new = term;
    new.c_lflag &= ~ICANON;
    new.c_lflag &= ~ECHO;
    if (tcsetattr(fileno(stdin), TCSAFLUSH, &new) != 0) {
        perror("tcsetattr failed");
        exit(-1);
    }
}

/* Enable normal terminal state after getting password*/
static void enable_echo() {
    if (tcsetattr(fileno(stdin), TCSAFLUSH, &term) != 0) {
        perror("tcsetattr failed");
        exit(-1);
    }
}

/* Read password which will be printed as `*` characters */
static void mask_getstr(char* buf, size_t size){
    char c = '\0';
    while (--size > 0 && (c = getchar()) != '\n') {
        *buf++ = c;
        putchar('*');
    }
    *buf = '\0';
}

    #include<iostream.h>
    #include<stdio.h>
    #include<string.h>
    void main()
    {
     char str[10];
     int i=0,x,y;
     cout<<"enter : ";
     while(1)
      { str[i]=getch();
        if(str[i]==13)
        break;
        if(str[0]==127||str[0]==8)
        continue;
        if(str[i]==127||str[i]==8)
        {
           i--;
           x=wherex();
           y=wherey();
           gotoxy(x-1,y);
           clreol();
         }
         else
         {
           cout<<"*";
           i++;
         }
       }
     if(strcmp(str,"1234")==0)
     cout<<"Welcome";
     else
     cout<<"Try again";
    }