1 files changed, 76 insertions, 0 deletions
diff --git a/lib/datum.c b/lib/datum.c
new file mode 100644
index 0000000..bd0f216
--- /dev/null
+++ b/lib/datum.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2001-2012 Free Software Foundation, Inc.
+ *
+ * Author: Nikos Mavrogiannopoulos
+ *
+ * This file is part of GnuTLS.
+ *
+ * The GnuTLS is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>
+ *
+ */
+
+/* contains functions that make it easier to
+ * write vectors of <size|data>. The destination size
+ * should be preallocated (datum.size+(bits/8))
+ */
+
+#include "gnutls_int.h"
+#include <num.h>
+#include <datum.h>
+#include "errors.h"
+
+/* On error, @dat is not changed. */
+int
+_gnutls_set_datum(gnutls_datum_t * dat, const void *data, size_t data_size)
+{
+	if (data_size == 0 || data == NULL) {
+		dat->data = NULL;
+		dat->size = 0;
+		return 0;
+	}
+
+	unsigned char *m = gnutls_malloc(data_size);
+	if (!m)
+		return GNUTLS_E_MEMORY_ERROR;
+
+	dat->data = m;
+	dat->size = data_size;
+	memcpy(dat->data, data, data_size);
+
+	return 0;
+}
+
+/* ensures that the data set are null-terminated
+ * The function always returns an allocated string in @dat on success.
+ * On error, @dat is not changed.
+ */
+int
+_gnutls_set_strdatum(gnutls_datum_t * dat, const void *data, size_t data_size)
+{
+	if (data == NULL)
+		return gnutls_assert_val(GNUTLS_E_ILLEGAL_PARAMETER);
+
+	unsigned char *m = gnutls_malloc(data_size + 1);
+	if (!m)
+		return GNUTLS_E_MEMORY_ERROR;
+
+	dat->data = m;
+	dat->size = data_size;
+	if (data_size)
+		memcpy(dat->data, data, data_size);
+	dat->data[data_size] = 0;
+
+	return 0;
+}
+