FAPI Test: test improve error messages

* the error message for BIO_read_filename are improve.
* The used directory for the CA are displayed in the test log.
* The unneeded check-hook for the CA generation is removed.

Signed-off-by: Juergen Repp <juergen_repp@web.de>

Makefile.am

@@ -999,12 +999,11 @@ uninstall-local:
 clean-hook:
 	-rm -r -f $(top_builddir)/ca
 
-check-hook:
-	-rm -r -f $(top_builddir)/ca
-
 prepare-check:
 if INIT_CA
 	$(top_srcdir)/script/ekca/init_ca.sh $(top_builddir)
+	@echo "Build CI in:" 1>&2
+	@echo $(top_builddir) 1>&2
 endif
 
 check: prepare-check

test/integration/main-fapi.c

@@ -946,7 +946,10 @@ load_intermed_cert_and_key(const char *ca_key_path, EVP_PKEY **ca_key,
     /* Load the intermediate certificate */
     bio = BIO_new(BIO_s_file());
     if (!bio || !BIO_read_filename(bio, ca_cert_path)) {
-        LOG_ERROR("Failure in BIO_read_filename %s", ca_cert_path);
+        unsigned long err = ERR_get_error();
+        char err_buffer[256];
+        ERR_error_string_n(err, err_buffer, sizeof(err_buffer));
+        LOG_ERROR("Failure in BIO_read_filename %s", err_buffer);
         goto error_cleanup;
     }
     *ca_crt = PEM_read_bio_X509(bio, NULL, NULL, NULL);
@@ -959,7 +962,10 @@ load_intermed_cert_and_key(const char *ca_key_path, EVP_PKEY **ca_key,
     /* Load the intermediate key. */
     bio = BIO_new(BIO_s_file());
     if (!bio  || !BIO_read_filename(bio, ca_key_path)) {
-        LOG_ERROR("Failure in BIO_read_filename %s", ca_key_path);
+        unsigned long err = ERR_get_error();
+        char err_buffer[256];
+        ERR_error_string_n(err, err_buffer, sizeof(err_buffer));
+        LOG_ERROR("Failure in BIO_read_filename %s", err_buffer);
         goto error_cleanup;
     }
     *ca_key = PEM_read_bio_PrivateKey(bio, NULL, pass_cb, NULL);