1 files changed, 119 insertions, 0 deletions

diff --git a/libraries/eet/src/examples/eet-data-cipher_decipher.c b/libraries/eet/src/examples/eet-data-cipher_decipher.c
new file mode 100644
index 0000000..2ef965c
--- /dev/null
+++ b/libraries/eet/src/examples/eet-data-cipher_decipher.c
@@ -0,0 +1,119 @@
+/*
+ * build: gcc -o eet_data_file_cipher_decipher eet-data-file_cipher_decipher.c `pkg-config --cflags --libs eet eina`
+ */
+
+#include <Eina.h>
+#include <Eet.h>
+#include <stdio.h>
+#include <limits.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.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_XXXXX");
+   Eet_File *ef;
+   char *test;
+   int size;
+
+   eet_init();
+
+   if (!(file = tmpnam(file)))
+     {
+        fprintf(
+          stderr, "ERROR: could not create temporary file (%s).\n", file);
+        goto panic;
+     }
+
+   /* Crypt an eet file. */
+   ef = eet_open(file, EET_FILE_MODE_WRITE);
+   if (!ef)
+     {
+        fprintf(
+          stderr, "ERROR: could not access file (%s).\n", file);
+        goto error;
+     }
+
+   if (!eet_write_cipher(ef, "keys/tests", buffer, strlen(buffer) + 1, 0, key))
+     {
+        fprintf(
+          stderr, "ERROR: could not access file (%s).\n", file);
+        goto error;
+     }
+
+   eet_close(ef);
+
+   /* Decrypt an eet file. */
+   ef = eet_open(file, EET_FILE_MODE_READ);
+   if (!ef)
+     {
+        fprintf(
+          stderr, "ERROR: could not access file (%s).\n", file);
+        goto error;
+     }
+
+   test = eet_read_cipher(ef, "keys/tests", &size, key);
+   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;
+     }
+
+   eet_close(ef);
+
+   /* Decrypt an eet file, now using our BAD key!! */
+   ef = eet_open(file, EET_FILE_MODE_READ);
+   if (!ef)
+     {
+        fprintf(
+          stderr, "ERROR: could not access file (%s).\n", file);
+        goto error;
+     }
+
+   test = eet_read_cipher(ef, "keys/tests", &size, key_bad);
+
+   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;
+       }
+
+   eet_close(ef);
+
+error:
+   if (unlink(file) != 0)
+     {
+        fprintf(
+          stderr, "ERROR: could not unlink file (%s).\n", file);
+     }
+
+panic:
+   eet_shutdown();
+}
+