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Avoid aliasing problems by using special buf endian handling functions wrapping memcpy

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This commit is contained in:
Francisco Blas (klondike) Izquierdo Riera 2014-12-29 23:04:02 +01:00
parent 4d640dac2a
commit 1636187e26
13 changed files with 68 additions and 40 deletions
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8
Garlic.cpp
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@ -331,7 +331,7 @@ namespace garlic
void GarlicDestination::HandleGarlicMessage (I2NPMessage * msg)
{
uint8_t * buf = msg->GetPayload ();
uint32_t length = be32toh (*(uint32_t *)buf);
uint32_t length = bufbe32toh (buf);
buf += 4; // length
auto it = m_Tags.find (SessionTag(buf));
if (it != m_Tags.end ())
@ -389,7 +389,7 @@ namespace garlic
void GarlicDestination::HandleAESBlock (uint8_t * buf, size_t len, std::shared_ptr<i2p::crypto::CBCDecryption> decryption,
i2p::tunnel::InboundTunnel * from)
{
uint16_t tagCount = be16toh (*(uint16_t *)buf);
uint16_t tagCount = bufbe16toh (buf);
buf += 2; len -= 2;
if (tagCount > 0)
{
@ -404,7 +404,7 @@ namespace garlic
}
buf += tagCount*32;
len -= tagCount*32;
uint32_t payloadSize = be32toh (*(uint32_t *)buf);
uint32_t payloadSize = bufbe32toh (buf);
if (payloadSize > len)
{
LogPrint (eLogError, "Unexpected payload size ", payloadSize);
@ -460,7 +460,7 @@ namespace garlic
// gwHash and gwTunnel sequence is reverted
uint8_t * gwHash = buf;
buf += 32;
uint32_t gwTunnel = be32toh (*(uint32_t *)buf);
uint32_t gwTunnel = bufbe32toh (buf);
buf += 4;
i2p::tunnel::OutboundTunnel * tunnel = nullptr;
if (from && from->GetTunnelPool ())