#include <cstdlib>
#include <iostream>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <stdio.h>

using namespace std;

int main() {
     char buffer[] = "XXXXXX.tmp";
     char buffer2[] = "GONE_XXXXXX";
     int fd;
     int i;
     long tmp;
     string junk;

     srand(time(NULL));

     cout << "Creating a temp file."  << endl;
     fd = mkstemps(buffer, 4);
     if (-1 == fd) {
         perror("mkstemps");
	 return(-1);
     }

     cout << "opened " << fd << " and the name is " << buffer << endl;
     cout << "This one will still be around after exit " << endl;

     write(fd, buffer, strlen(buffer));
     close(fd);

     fd = mkstemp(buffer2);
     if (-1 == fd) {
         perror("mkstemp");
	 return(-1);
     }
     cout << "Created a new file called " << buffer2 << endl;

     cout << "Press enter to continue " << endl;
     getline(cin, junk);
     unlink(buffer2);

     cout << "unlinked it " << endl;

     cout << "Writing 10 random numbers " << endl;
     for(i=0;i<10;i++) {
        tmp = rand() % 100;
	cout << tmp << " ";
	write(fd, &tmp, sizeof(tmp));
     }
     cout << endl;

     cout << "Press enter to continue " << endl;
     getline(cin, junk);

     cout << "Seeking to the beginning of the file " << endl;
     lseek(fd, 0, SEEK_SET);
     for(i=0;i<10;i++) {
         read(fd, &tmp, sizeof(tmp));
	 cout << tmp << " ";
     }
     cout << endl;

     close (fd);

 
     return 0;
}