cleanup library and some basic tests. Includes, add guards to includes

tests/scripts/generate_code.pl

@@ -65,12 +65,12 @@ print TEST_FILE << "END";
 #include POLARSSL_CONFIG_FILE
 #endif
 
+$test_helpers
+
 $suite_pre_code
 $suite_header
 $suite_post_code
 
-$test_helpers
-
 END
 
 $test_main =~ s/SUITE_PRE_DEP/$suite_pre_code/;

tests/suites/helpers.function

@@ -1,6 +1,9 @@
 #if defined(POLARSSL_PLATFORM_C)
 #include "polarssl/platform.h"
 #else
+#include <stdio.h>
+#define polarssl_printf     printf
+#define polarssl_fprintf    fprintf
 #define polarssl_malloc     malloc
 #define polarssl_free       free
 #endif

tests/suites/main_test.function

@@ -1,15 +1,3 @@
-#include <stdio.h>
-#include <string.h>
-
-#if defined(POLARSSL_PLATFORM_C)
-#include "polarssl/platform.h"
-#else
-#define polarssl_printf     printf
-#define polarssl_fprintf    fprintf
-#define polarssl_malloc     malloc
-#define polarssl_free       free
-#endif
-
 #if defined(POLARSSL_MEMORY_BUFFER_ALLOC_C)
 #include "polarssl/memory_buffer_alloc.h"
 #endif

tests/suites/test_suite_ctr_drbg.function

@@ -1,6 +1,8 @@
 /* BEGIN_HEADER */
 #include <polarssl/ctr_drbg.h>
 
+#include <string.h>
+
 int test_offset_idx;
 int entropy_func( void *data, unsigned char *buf, size_t len )
 {

tests/suites/test_suite_hmac_drbg.function

@@ -1,6 +1,8 @@
 /* BEGIN_HEADER */
 #include <polarssl/hmac_drbg.h>
 
+#include <string.h>
+
 typedef struct
 {
     unsigned char *p;