#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>

int main(int argc, char const *argv[])
{
    if (argc == 2)
    {
        setuid(0);
        char pwd[100], cmd[400];

        printf("New password:\n");
        scanf("%s", pwd);

        sprintf(cmd, "echo -n '%s\\n%s' | /usr/bin/passwd %s &> /dev/null", pwd, pwd, argv[1]);
        // printf("%s\n", cmd);
        // system(cmd);
        // if (!system("echo $? &> /dev/null"))
        // {
        //     printf("Password for user %s is now changed successfully.\n", argv[1]);
        // } else {
        //     printf("Something went wrong, password for user %s is unchanged.\n", argv[1]);
        // }
        printf("%s\n", cmd);
    } else {
        printf("./fake_passwd user\n");
    }
}