1 files changed, 60 insertions, 0 deletions
diff --git a/src/m_paper_key/packets.cpp b/src/m_paper_key/packets.cpp
new file mode 100644
index 0000000..5fd1f04
--- /dev/null
+++ b/src/m_paper_key/packets.cpp
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2007 David Shaw <[email protected]>
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include "packets.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "GFSDKBasic.h"
+#include "output.h"
+
+extern int verbose;
+
+auto append_packet(struct packet *packet, unsigned char *buf,
+                   size_t len) -> struct packet * {
+  if (packet != nullptr) {
+    while (packet->size - packet->len < len) {
+      packet->size += 100;
+      packet->buf = static_cast<unsigned char *>(
+          GFReallocateMemory(packet->buf, packet->size));
+    }
+
+    memcpy(&packet->buf[packet->len], buf, len);
+    packet->len += len;
+  } else {
+    packet =
+        static_cast<struct packet *>(GFAllocateMemory(sizeof(struct packet)));
+    packet->type = 0;
+    packet->buf = static_cast<unsigned char *>(GFAllocateMemory(len));
+    packet->len = len;
+    packet->size = len;
+
+    memcpy(packet->buf, buf, len);
+  }
+
+  return packet;
+}
+
+void free_packet(struct packet *packet) {
+  if (packet != nullptr) {
+    GFFreeMemory(packet->buf);
+    GFFreeMemory(packet);
+  }
+}
+\ No newline at end of file