Add initial copy-pasted code

1 files changed, 41 insertions, 0 deletions

diff --git a/src/encryption.c b/src/encryption.c
new file mode 100644
index 0000000..f39fd28
--- /dev/null
+++ b/src/encryption.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2014 Matthias P. Braendli
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#include "encryption.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+
+int readkey(const char* keyfile, char* key)
+{
+    int fd = open(keyfile, O_RDONLY);
+    if (fd < 0)
+        return fd;
+    int ret = read(fd, key, CURVE_KEYLEN);
+    if (ret < 0)
+        return ret;
+    close(fd);
+
+    /* It needs to be zero-terminated */
+    key[CURVE_KEYLEN] = '\0';
+
+    return 0;
+}
+