Updated OpenSSL checks

edge.c

@@ -679,6 +679,10 @@ int main(int argc, char* argv[]) {
 
   traceEvent(TRACE_NORMAL, "Starting n2n edge %s %s", PACKAGE_VERSION, PACKAGE_BUILDDATE);
 
+#if defined(N2N_HAVE_AES) || defined(HAVE_OPENSSL_1_1)
+  traceEvent(TRACE_NORMAL, "Using %s", OpenSSL_version(0));
+#endif
+  
   /* Random seed */
   srand(time(NULL));
 

n2n.h

@@ -110,6 +110,8 @@ typedef struct ether_hdr ether_hdr_t;
 #include <unistd.h>
 #include <assert.h>
 #include <sys/stat.h>
+#include <openssl/opensslv.h>
+#include <openssl/crypto.h>
 #include "minilzo.h"
 
 #define closesocket(a) close(a)

transform_aes.c

@@ -83,8 +83,10 @@ char *openssl_err_as_string (void) {
   char *buf = NULL;
   size_t len = BIO_get_mem_data (bio, &buf);
   char *ret = (char *) calloc (1, 1 + len);
+
   if(ret)
     memcpy (ret, buf, len);
+
   BIO_free (bio);
   return ret;
 }