X-Git-Url: http://www.lcore.org/git/lcore.git/blobdiff_plain/27e903c56380abcb11b5a0b8d7ccab88a14b5cde..51075d051580863ca073aa91883357410b358e40:/binipstuff.pas

diff --git a/binipstuff.pas b/binipstuff.pas
index 1cfa34d..227c6f4 100644
--- a/binipstuff.pas
+++ b/binipstuff.pas
@@ -13,19 +13,19 @@ interface
 {$include lcoreconfig.inc}
 
 uses
-{$ifndef win32}
+{$ifndef mswindows}
   sockets,
 {$endif}
   pgtypes;
 
-{$ifdef cpu386}{$define i386}{$endif}
-{$ifdef i386}{$define ENDIAN_LITTLE}{$endif}
+
+{$include pgtypes.inc}
 
 {$include uint32.inc}
 
 const
   hexchars:array[0..15] of ansichar='0123456789abcdef';
-  {$ifdef win32}
+  {$ifdef mswindows}
     AF_INET=2;
     AF_INET6=23;
   {$else}
@@ -39,7 +39,7 @@ const
 type
   {$ifdef ipv6}
     
-    {$ifdef win32}
+    {$ifdef mswindows}
       {$define want_Tin6_addr}
     {$endif}
     {$ifdef ver1_0}
@@ -70,55 +70,52 @@ type
     {$endif}
   end;
 
-  {$ifdef win32}
-    TInetSockAddr = packed Record
-      family:Word;
-      port  :Word;
-      addr  :uint32;
-      pad   :array [1..8] of byte;
-    end;
-    {$ifdef ipv6}
+  {zipplet 20170204: FPC 3.0.0 changed the definition of TInetSockAddr:
+    - http://www.freepascal.org/docs-html/rtl/sockets/tinetsockaddr.html
+    - http://www.freepascal.org/docs-html/rtl/sockets/sockaddr_in.html
+   Due to this, TInetSockAddr -> TLInetSockAddr4 / TLInetSockAddr6
+   Using our own types no matter what OS or compiler version will prevent future problems.
+   Adding "4" to non IPv6 record names improves code clarity }
 
-      TInetSockAddr6 = packed record
-        sin6_family: word;
-        sin6_port: word;
-        sin6_flowinfo: uint32;
-        sin6_addr: tin6_addr;
-        sin6_scope_id: uint32;
-      end;
+  {$ifndef mswindows}
+    {zipplet 20170204: Do we still need to support ver1_0? Perhaps a cleanup is in order.
+     For now keep supporting it for compatibility. }
+    {$ifdef ver1_0}
+      cuint16 = word;
+      cuint32 = dword;
+      sa_family_t = word;
     {$endif}
   {$endif}
 
-
-
+  TLInetSockAddr4 = packed Record
+    family:Word;
+    port  :Word;
+    addr  :uint32;
+    pad   :array [0..7] of byte; {zipplet 20170204 - originally this was 1..8 for some reason}
+  end;
+  
   {$ifdef ipv6}
-    {$ifdef ver1_0}
-      cuint16=word;
-      cuint32=dword;
-      sa_family_t=word;
-
-      TInetSockAddr6 = packed record
-        sin6_family: word;
-        sin6_port: word;
-        sin6_flowinfo: uint32;
-        sin6_addr: tin6_addr;
-        sin6_scope_id: uint32;
-      end;
-    {$endif}
+    TLInetSockAddr6 = packed record
+      sin6_family: word;
+      sin6_port: word;
+      sin6_flowinfo: uint32;
+      sin6_addr: tin6_addr;
+      sin6_scope_id: uint32;
+    end;
   {$endif}
+
+  {zipplet 20170204: I did not rename the unioned record. We might want to rename this to TLinetSockAddrv }
   TinetSockAddrv = packed record
     case integer of
-      0: (InAddr:TInetSockAddr);
+      0: (InAddr:TLInetSockAddr4);
       {$ifdef ipv6}
-      1: (InAddr6:TInetSockAddr6);
+      1: (InAddr6:TLInetSockAddr6);
       {$endif}
   end;
   Pinetsockaddrv = ^Tinetsockaddrv;
 
   type
-    tsockaddrin=TInetSockAddr;
-
-
+    tsockaddrin=TLInetSockAddr4;
 
 {
 bin IP list code, by beware
@@ -166,6 +163,10 @@ function inaddrvtobinip(inaddrv:tinetsockaddrv):tbinip;
 function makeinaddrv(addr:tbinip;port:ansistring;var inaddr:tinetsockaddrv):integer;
 function inaddrsize(inaddr:tinetsockaddrv):integer;
 
+function getbinipbitlength(const ip:tbinip):integer;
+function getipstrbitlength(const ip:thostname):integer;
+function getfamilybitlength(family:integer):integer;
+
 implementation
 
 uses sysutils;
@@ -208,14 +209,14 @@ begin
     inAddr.InAddr.family:=AF_INET;
     inAddr.InAddr.port:=htons(strtointdef(port,0));
     inAddr.InAddr.addr:=addr.ip;
-    result := sizeof(tinetsockaddr);
+    result := sizeof(tlinetsockaddr4);
   end else
   {$ifdef ipv6}
   if addr.family = AF_INET6 then begin
     inAddr.InAddr6.sin6_family:=AF_INET6;
     inAddr.InAddr6.sin6_port:=htons(strtointdef(port,0));
     inAddr.InAddr6.sin6_addr:=addr.ip6;
-    result := sizeof(tinetsockaddr6);
+    result := sizeof(tlinetsockaddr6);
   end;
   {$endif}
 end;
@@ -223,9 +224,9 @@ end;
 function inaddrsize(inaddr:tinetsockaddrv):integer;
 begin
   {$ifdef ipv6}
-  if inaddr.inaddr.family = AF_INET6 then result := sizeof(tinetsockaddr6) else
+  if inaddr.inaddr.family = AF_INET6 then result := sizeof(tlinetsockaddr6) else
   {$endif}
-  result := sizeof(tinetsockaddr);
+  result := sizeof(tlinetsockaddr4);
 end;
 
 {internal}
@@ -334,7 +335,7 @@ written by beware
 
 - implementation does not depend on other ipv6 code such as the tin6_addr type,
   the parameter can also be untyped.
-- it is host endian neutral - binary format is aways network order
+- it is host endian neutral - binary format is always network order
 - it supports compression of zeroes
 - it supports ::ffff:192.168.12.34 style addresses
 - they are made to do the Right Thing, more efficient implementations are possible
@@ -386,7 +387,7 @@ begin
     end;
   end;
 
-  {run length atleast 2 0 words}
+  {run length at least 2 0 words}
   if (runlength = 1) then begin
     runlength := 0;
     runbegin := 0;
@@ -555,8 +556,8 @@ begin
   {$ifdef ipv6}
     if ip.family = AF_INET then begin
       ip.family := AF_INET6;
-      ip.ip6.s6_addr32[3] := ip.ip; 
-      ip.ip6.u6_addr32[0] := 0; 
+      ip.ip6.s6_addr32[3] := ip.ip;
+      ip.ip6.u6_addr32[0] := 0;
       ip.ip6.u6_addr32[1] := 0;
       ip.ip6.u6_addr16[4] := 0;
       ip.ip6.u6_addr16[5] := $ffff;
@@ -660,5 +661,26 @@ begin
   end;
 end;
 
+function getfamilybitlength(family:integer):integer;
+begin
+  {$ifdef ipv6}
+  if family = AF_INET6 then result := 128 else
+  {$endif}
+  if family = AF_INET then result := 32
+  else result := 0;
+end;
+
+function getbinipbitlength(const ip:tbinip):integer;
+begin
+  result := getfamilybitlength(ip.family);
+end;
+
+function getipstrbitlength(const ip:thostname):integer;
+var
+  biniptemp:tbinip;
+begin
+  ipstrtobin(ip,biniptemp);
+  result := getbinipbitlength(biniptemp);
+end;
 
 end.