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BUG: Prevent npdu_len from wrapping around at npdu_len=1 (#452)

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anthony-crystalpeak
2023-07-13 12:44:48 -07:00
committed by GitHub
parent 758cac3bed
commit da4db7c65e
1 changed files with 2 additions and 1 deletions
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apps/router-mstp/main.c
+2 -1
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@@ -662,7 +662,8 @@ static void network_control_handler(uint16_t snet,
case NETWORK_MESSAGE_I_AM_ROUTER_TO_NETWORK: case NETWORK_MESSAGE_I_AM_ROUTER_TO_NETWORK:
/* add its DNETs to our routing table */ /* add its DNETs to our routing table */
fprintf(stderr, "for Networks: "); fprintf(stderr, "for Networks: ");
while (npdu_len) { len = 2;
while (npdu_len >= len) {
len = decode_unsigned16(&npdu[npdu_offset], &dnet); len = decode_unsigned16(&npdu[npdu_offset], &dnet);
fprintf(stderr, "%hu", dnet); fprintf(stderr, "%hu", dnet);
dnet_add(snet, dnet, src); dnet_add(snet, dnet, src);