X-Git-Url: http://git.droids-corp.org/?p=protos%2Fxbee-avr.git;a=blobdiff_plain;f=rc_proto.c;h=9e057e36b6980425876aa07426f3c3b8e4c0142c;hp=ee2888bb3f43de05dc4823a71bff2cf58d7a697f;hb=4989a2c76e8fa25667663a215709f9366747fcad;hpb=d6014994e06ebe952d51bef2e36a795f624c4b4d

diff --git a/rc_proto.c b/rc_proto.c
index ee2888b..9e057e3 100644
--- a/rc_proto.c
+++ b/rc_proto.c
@@ -1,3 +1,30 @@
+/*
+ * Copyright (c) 2013, Olivier MATZ <zer0@droids-corp.org>
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the University of California, Berkeley nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
 #include <aversive.h>
 #include <aversive/queue.h>
 
@@ -16,9 +43,6 @@
 #include "rc_proto.h"
 #include "main.h"
 
-
-
-
 struct power_levels {
 	int ttl;
 	int power_db;
@@ -31,8 +55,12 @@ static int set_power_level(void *frame, unsigned len, void *arg)
 	struct xbee_atresp_hdr *atresp = (struct xbee_atresp_hdr *)frame;
 	int level = (intptr_t)arg;
 	uint8_t db;
-	db = atresp->data[0];
 
+	/* XXX check if this test is correct */
+	if (len < sizeof(struct xbee_atresp_hdr) + sizeof(uint8_t))
+		return -1;
+
+	db = atresp->data[0];
 	power_levels[level].power_db = db;
 	power_levels[level].ttl = 2;
 	return 0;