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bugfix by Wolf-Bastian Pttner: check buffer size at incoming radio data

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This commit is contained in:
fros4943 2009-04-16 14:38:41 +00:00
parent bc6704079c
commit b65014d1be
1 changed files with 6 additions and 2 deletions
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8
platform/cooja/dev/cooja-radio.c
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@ -26,7 +26,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* $Id: cooja-radio.c,v 1.9 2009/04/01 13:44:34 fros4943 Exp $ * $Id: cooja-radio.c,v 1.10 2009/04/16 14:38:41 fros4943 Exp $
*/ */
#include <string.h> #include <string.h>
@ -164,8 +164,12 @@ int
radio_read(void *buf, unsigned short bufsize) radio_read(void *buf, unsigned short bufsize)
{ {
int tmpInSize = simInSize; int tmpInSize = simInSize;
if(simInSize > 0) {
if( bufsize < simInSize ) {
return 0;
}
if(simInSize > 0) {
memcpy(buf, simInDataBuffer, simInSize); memcpy(buf, simInDataBuffer, simInSize);
simInSize = 0; simInSize = 0;
return tmpInSize; return tmpInSize;