#include <stdio.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
int
main(void)
{
   const char *buffer = "Here is a string of data to save !";
   const char *key = "This is a crypto key";
   const char *key_bad = "This is another crypto key";
   char *file = strdup("/tmp/eet_cipher_example_XXXXXX");
   char *test;
   int size;
   int tmpfd;
   if (-1 == (tmpfd = 
mkstemp(file)) || !!close(tmpfd))
      {
        fprintf(
                stderr, "ERROR: could not create temporary file (%s) : %s\n",
                file, strerror(errno));
        goto panic;
     }
   
   if (!ef)
     {
        fprintf(
          stderr, "ERROR: could not access file (%s).\n", file);
     }
     {
        fprintf(
          stderr, "ERROR: could not access file (%s).\n", file);
     }
   
   if (!ef)
     {
        fprintf(
          stderr, "ERROR: could not access file (%s).\n", file);
     }
   if (!test)
     {
        fprintf(
          stderr, "ERROR: could decript contents on file %s, with key %s.\n",
          file, key);
     }
   if (size != (int)strlen(buffer) + 1)
     {
        fprintf(
          stderr, "ERROR: something is wrong with the decripted data\n");
     }
   if (memcmp(test, buffer, strlen(buffer) + 1) != 0)
     {
        fprintf(
          stderr, "ERROR: something is wrong with the decripted data\n");
     }
   
   if (!ef)
     {
        fprintf(
          stderr, "ERROR: could not access file (%s).\n", file);
     }
   if (size == (int)strlen(buffer) + 1)
     if (memcmp(test, buffer, strlen(buffer) + 1) == 0)
       {
          fprintf(
            stderr, "ERROR: something is wrong with the contents of %s, as"
                    " we accessed it with a different key and it decripted our"
                    " information right.\n", file);
       }
   if (unlink(file) != 0)
     {
        fprintf(
          stderr, "ERROR: could not unlink file (%s).\n", file);
     }
panic:
}