1 files changed, 78 insertions, 0 deletions
diff --git a/tests/buffer.c b/tests/buffer.c
new file mode 100644
index 0000000..a6fb476
--- /dev/null
+++ b/tests/buffer.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2019 Tim Rühsen
+ *
+ * This file is part of GnuTLS.
+ *
+ * GnuTLS is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuTLS is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GnuTLS; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <gnutls_int.h>
+#include "utils.h"
+
+void doit(void)
+{
+	static const struct test_data {
+		const char *
+			input;
+		const char *
+			output;
+	} test_data[] = {
+		{ "%20%20", "  ", },
+		{ "%20", " ", },
+		{ "%2z", "%2z", },
+		{ "%2", "%2", },
+		{ "%", "%", },
+		{ "", "", },
+	};
+
+	for (unsigned it = 0; it < countof(test_data); it++) {
+		const struct test_data *t = &test_data[it];
+		gnutls_buffer_st str;
+		int ret;
+
+		_gnutls_buffer_init(&str);
+
+		ret = _gnutls_buffer_append_data(&str, t->input, strlen(t->input));
+		if (ret < 0)
+			fail("_gnutls_buffer_append_str: %s\n", gnutls_strerror(ret));
+
+		ret = _gnutls_buffer_unescape(&str);
+		if (ret < 0)
+			fail("_gnutls_buffer_unescape: %s\n", gnutls_strerror(ret));
+
+		ret = _gnutls_buffer_append_data(&str, "", 1);
+		if (ret < 0)
+			fail("_gnutls_buffer_append_data: %s\n", gnutls_strerror(ret));
+
+		/* using malloc() instead of stack memory for better buffer overflow detection */
+		gnutls_datum output;
+
+		_gnutls_buffer_pop_datum(&str, &output, strlen(t->output) + 1);
+
+		if (strcmp(t->output, (char *) output.data))
+			fail("output differs [%d]: expected '%s', seen '%s'\n", it, t->output, (char *) output.data);
+
+		_gnutls_buffer_clear(&str);
+	}
+}
+