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introduced Checksum::PseudoHeader helper.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20717 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Hugo Santos
2007-04-15 23:18:15 +00:00
parent 239fad6de1
commit d5b5a2c2f8
3 changed files with 27 additions and 43 deletions
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headers/private/net/NetUtilities.h
+19
View File
@@ -9,6 +9,8 @@
#include <net_buffer.h>
#include <net_datalink.h>
#include <netinet/in.h> // for htons
#include <stdlib.h>
class Checksum {
@@ -32,6 +34,10 @@ class Checksum {
operator uint16();
static uint16 PseudoHeader(net_address_module_info *addressModule,
net_buffer_module_info *bufferModule, net_buffer *buffer,
uint16 protocol);
private:
uint32 fSum;
};
@@ -77,6 +83,19 @@ inline Checksum::operator uint16() {
}
inline uint16
Checksum::PseudoHeader(net_address_module_info *addressModule,
net_buffer_module_info *bufferModule, net_buffer *buffer, uint16 protocol)
{
Checksum checksum;
addressModule->checksum_address(&checksum, (sockaddr *)&buffer->source);
addressModule->checksum_address(&checksum, (sockaddr *)&buffer->destination);
checksum << (uint16)htons(protocol) << (uint16)htons(buffer->size)
<< Checksum::BufferHelper(buffer, bufferModule);
return checksum;
}
// helper class that prints an address (and optionally a port) into a buffer that
// is automatically freed at end of scope:
class AddressString {