#include <sys/types.h>  // getpw*
#include <pwd.h>        // getpw*
#include <unistd.h>     // getuid
#include <stdio.h>      // perror
#include <iostream>

using namespace std;

void PrintUser(passwd * user) {
         cout << "\tname is " << user->pw_name << endl ;
         cout << "\tpassword is " << user->pw_passwd << endl;
         cout << "\tuid is " << user->pw_uid << endl;
         cout << "\tgid is " << user->pw_gid << endl;
         cout << "\tgecos is " << user->pw_gecos << endl;
         cout << "\thome is " << user->pw_dir << endl;
         cout << "\tshell is " << user->pw_shell << endl;
	 cout << endl;
}

int main(int argc, char * argv[]) {

     int i = 1;
     passwd * user;
     uid_t uid;

     uid = getuid();
     user = getpwuid(uid);
     if (NULL == user) {
         perror("getpwuid");
	 return -1;
     }

     cout << "The user running the process is " << endl;
     PrintUser(user);
     cout << endl;

     while (i <  argc) {
         user = getpwnam(argv[i]);
         if (NULL == user)  {
            perror("getpwnam");
	    return -1;
         }

	 cout << "information about " << argv[i] << endl;
         PrintUser(user) ;
         i++;
     }


     return 0;
}