#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);
goto error;
}
{
fprintf(
stderr, "ERROR: could not access file (%s).\n", file);
goto error;
}
if (!ef)
{
fprintf(
stderr, "ERROR: could not access file (%s).\n", file);
goto error;
}
if (!test)
{
fprintf(
stderr, "ERROR: could decript contents on file %s, with key %s.\n",
file, key);
goto error;
}
if (size != (int)strlen(buffer) + 1)
{
fprintf(
stderr, "ERROR: something is wrong with the decripted data\n");
goto error;
}
if (memcmp(test, buffer, strlen(buffer) + 1) != 0)
{
fprintf(
stderr, "ERROR: something is wrong with the decripted data\n");
goto error;
}
if (!ef)
{
fprintf(
stderr, "ERROR: could not access file (%s).\n", file);
goto error;
}
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);
goto error;
}
error:
if (unlink(file) != 0)
{
fprintf(
stderr, "ERROR: could not unlink file (%s).\n", file);
}
panic:
}