Move seq_compare into its own header file

src/CMakeLists.txt

@@ -24,6 +24,7 @@ set(SOURCES
     detail/address_helpers.cpp
     detail/icmp_extension_helpers.cpp
     detail/pdu_helpers.cpp
+    detail/sequence_number_helpers.cpp
     dhcp.cpp
     dhcpv6.cpp
     dns.cpp
@@ -35,7 +36,6 @@ set(SOURCES
     icmp_extension.cpp
     icmp.cpp
     icmpv6.cpp
-    internals.cpp
     ip_reassembler.cpp
     ip.cpp
     ip_address.cpp

src/detail/sequence_number_helpers.cpp

@@ -27,7 +27,7 @@
  *
  */
 
-#include "internals.h"
+#include "detail/sequence_number_helpers.h"
 
 namespace Tins {
 namespace Internals {
@@ -46,5 +46,5 @@ int seq_compare(uint32_t seq1, uint32_t seq2) {
     }
 }
 
-} // namespace Internals
-} // namespace Tins
+} // Internals
+} // Tins

src/tcp_ip/ack_tracker.cpp

@@ -33,7 +33,7 @@
 
 #include <limits>
 #include "tcp.h"
-#include "internals.h"
+#include "detail/sequence_number_helpers.h"
 
 using std::vector;
 using std::numeric_limits;

src/tcp_ip/data_tracker.cpp

@@ -31,7 +31,7 @@
 
 #ifdef TINS_HAVE_TCPIP
 
-#include "internals.h"
+#include "detail/sequence_number_helpers.h"
 
 using std::move;
 

src/tcp_ip/flow.cpp

@@ -40,7 +40,7 @@
 #include "ip.h"
 #include "ipv6.h"
 #include "rawpdu.h"
-#include "internals.h"
+#include "detail/sequence_number_helpers.h"
 #include "exceptions.h"
 #include "memory_helpers.h"