Merge branch 'master' of kismetwireless.net:kismet

Author: dragorn

kis_external_packet.c

@@ -0,0 +1,44 @@
+/*
+    This file is part of Kismet
+
+    Kismet 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.
+
+    Kismet 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 Kismet; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "kis_external_packet.h"
+
+/* Blocks are always aligned to 32bit and start at a boundary, so
+ * when calculating the padded lengths, they only need the total padded to
+ * 32 bit */
+
+/* Calculate the padded block size of a string block for specified
+ * string length */
+size_t ks_proto_v3_strblock_padlen(size_t str_length) {
+    /* length(u16) + pad(u16) + string(pad 32) */
+    return 2 + 2 + str_length + (str_length % 4);
+}
+
+void ks_proto_v3_fill_strblock(void *block_buf, size_t length, char *data) {
+    kismet_v3_sub_string *substr = (kismet_v3_sub_string *) block_buf;
+
+    memset(substr, 0, sizeof(kismet_v3_sub_string) + ks_proto_v3_pad(length));
+
+    substr->length = (uint16_t) length;
+    substr->pad0 = 0;
+    memcpy(substr->data, data, length);
+}
+