1 files changed, 69 insertions, 0 deletions
diff --git a/external/nettle-3.3/nettle/realloc.c b/external/nettle-3.3/nettle/realloc.c
new file mode 100644
index 0000000..4e9a4b7
--- /dev/null
+++ b/external/nettle-3.3/nettle/realloc.c
@@ -0,0 +1,69 @@
+/* realloc.c
+
+   Copyright (C) 2002 Niels Möller
+
+   This file is part of GNU Nettle.
+
+   GNU Nettle is free software: you can redistribute it and/or
+   modify it under the terms of either:
+
+     * the GNU Lesser General Public License as published by the Free
+       Software Foundation; either version 3 of the License, or (at your
+       option) any later version.
+
+   or
+
+     * 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.
+
+   or both in parallel, as here.
+
+   GNU Nettle 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 copies of the GNU General Public License and
+   the GNU Lesser General Public License along with this program.  If
+   not, see http://www.gnu.org/licenses/.
+*/
+
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "realloc.h"
+
+/* NOTE: Calling libc realloc with size == 0 is not required to
+   totally free the object, it is allowed to return a valid
+   pointer. */
+void *
+nettle_realloc(void *ctx, void *p, size_t length)
+{
+  if (length > 0)
+    return realloc(p, length);
+
+  free(p);
+  return NULL;
+}
+
+void *
+nettle_xrealloc(void *ctx, void *p, size_t length)
+{
+  if (length > 0)
+    {
+      void *n = realloc(p, length);
+      if (!n)
+	{
+	  fprintf(stderr, "Virtual memory exhausted.\n");
+	  abort();
+	}
+      return n;
+    }
+  free(p);
+  return NULL;
+}