oleks/enet
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

sanity checks

Browse Source
This commit is contained in:
eihrul
2012-01-06 15:11:04 +00:00
parent 27d8c07142
commit 78222dc79e
4 changed files with 42 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files
protocol.c
+25 -11
View File
@@ -406,7 +406,9 @@ enet_protocol_handle_send_reliable (ENetHost * host, ENetPeer * peer, const ENet
dataLength = ENET_NET_TO_HOST_16 (command -> sendReliable.dataLength);
* currentData += dataLength;
if (* currentData > & host -> receivedData [host -> receivedDataLength])
if (dataLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE ||
* currentData < host -> receivedData ||
* currentData > & host -> receivedData [host -> receivedDataLength])
return -1;
packet = enet_packet_create ((const enet_uint8 *) command + sizeof (ENetProtocolSendReliable),
@@ -432,7 +434,9 @@ enet_protocol_handle_send_unsequenced (ENetHost * host, ENetPeer * peer, const E
dataLength = ENET_NET_TO_HOST_16 (command -> sendUnsequenced.dataLength);
* currentData += dataLength;
if (* currentData > & host -> receivedData [host -> receivedDataLength])
if (dataLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE ||
* currentData < host -> receivedData ||
* currentData > & host -> receivedData [host -> receivedDataLength])
return -1;
unsequencedGroup = ENET_NET_TO_HOST_16 (command -> sendUnsequenced.unsequencedGroup);
@@ -480,7 +484,9 @@ enet_protocol_handle_send_unreliable (ENetHost * host, ENetPeer * peer, const EN
dataLength = ENET_NET_TO_HOST_16 (command -> sendUnreliable.dataLength);
* currentData += dataLength;
if (* currentData > & host -> receivedData [host -> receivedDataLength])
if (dataLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE ||
* currentData < host -> receivedData ||
* currentData > & host -> receivedData [host -> receivedDataLength])
return -1;
packet = enet_packet_create ((const enet_uint8 *) command + sizeof (ENetProtocolSendUnreliable),
@@ -513,7 +519,9 @@ enet_protocol_handle_send_fragment (ENetHost * host, ENetPeer * peer, const ENet
fragmentLength = ENET_NET_TO_HOST_16 (command -> sendFragment.dataLength);
* currentData += fragmentLength;
if (* currentData > & host -> receivedData [host -> receivedDataLength])
if (fragmentLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE ||
* currentData < host -> receivedData ||
* currentData > & host -> receivedData [host -> receivedDataLength])
return -1;
channel = & peer -> channels [command -> header.channelID];
@@ -532,9 +540,11 @@ enet_protocol_handle_send_fragment (ENetHost * host, ENetPeer * peer, const ENet
fragmentOffset = ENET_NET_TO_HOST_32 (command -> sendFragment.fragmentOffset);
totalLength = ENET_NET_TO_HOST_32 (command -> sendFragment.totalLength);
if (fragmentOffset >= totalLength ||
fragmentOffset + fragmentLength > totalLength ||
fragmentNumber >= fragmentCount)
if (fragmentCount > ENET_PROTOCOL_MAXIMUM_FRAGMENT_COUNT ||
fragmentNumber >= fragmentCount ||
totalLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE ||
fragmentOffset >= totalLength ||
fragmentLength > totalLength - fragmentOffset)
return -1;
for (currentCommand = enet_list_previous (enet_list_end (& channel -> incomingReliableCommands));
@@ -622,7 +632,9 @@ enet_protocol_handle_send_unreliable_fragment (ENetHost * host, ENetPeer * peer,
fragmentLength = ENET_NET_TO_HOST_16 (command -> sendFragment.dataLength);
* currentData += fragmentLength;
if (* currentData > & host -> receivedData [host -> receivedDataLength])
if (fragmentLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE ||
* currentData < host -> receivedData ||
* currentData > & host -> receivedData [host -> receivedDataLength])
return -1;
channel = & peer -> channels [command -> header.channelID];
@@ -647,9 +659,11 @@ enet_protocol_handle_send_unreliable_fragment (ENetHost * host, ENetPeer * peer,
fragmentOffset = ENET_NET_TO_HOST_32 (command -> sendFragment.fragmentOffset);
totalLength = ENET_NET_TO_HOST_32 (command -> sendFragment.totalLength);
if (fragmentOffset >= totalLength ||
fragmentOffset + fragmentLength > totalLength ||
fragmentNumber >= fragmentCount)
if (fragmentCount > ENET_PROTOCOL_MAXIMUM_FRAGMENT_COUNT ||
fragmentNumber >= fragmentCount ||
totalLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE ||
fragmentOffset >= totalLength ||
fragmentLength > totalLength - fragmentOffset)
return -1;
for (currentCommand = enet_list_previous (enet_list_end (& channel -> incomingUnreliableCommands));