secure: decrease a (stack allocated) buffer size

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>

diff --git a/lib/secure/src/olsrd_secure.c b/lib/secure/src/olsrd_secure.c
index e5d1547..e7c8618 100644 (file)
--- a/lib/secure/src/olsrd_secure.c
+++ b/lib/secure/src/olsrd_secure.c
@@ -1006,7 +1006,7 @@ send_rres(struct interface *olsr_if, union olsr_ip_addr *to, union olsr_ip_addr
   /* Now create the digest of the message and the key */
 
   {
   /* Now create the digest of the message and the key */
 
   {

-    uint8_t checksum_cache[1512 + KEYLENGTH];
+    uint8_t checksum_cache[(sizeof(rrmsg) - sizeof(rrmsg.signature)) + KEYLENGTH];

     /* Create packet + key cache */
     /* First the OLSR packet + signature message - digest */
     memcpy(checksum_cache, &rrmsg, sizeof(rrmsg) - sizeof(rrmsg.signature));
     /* Create packet + key cache */
     /* First the OLSR packet + signature message - digest */
     memcpy(checksum_cache, &rrmsg, sizeof(rrmsg) - sizeof(rrmsg.signature));