add text file read unit and test program to go with it

[lcore.git] / binipstuff.pas

diff --git a/binipstuff.pas b/binipstuff.pas
index ebb9f9ceb0864cb436c6560ca68847baf15b2829..8411cd3336a18be9e75c362478433fc525c8dbec 100755 (executable)
--- a/binipstuff.pas
+++ b/binipstuff.pas
@@ -6,6 +6,8 @@ unit binipstuff;
 \r
 interface\r
 \r
 \r
 interface\r
 \r

+{$include lcoreconfig.inc}\r
+\r

 {$ifndef win32}\r
 {$ifdef ipv6}\r
 uses sockets;\r
 {$ifndef win32}\r
 {$ifdef ipv6}\r
 uses sockets;\r


@@ -82,10 +84,59 @@ type
     {$endif}\r
   {$endif}\r
 \r
     {$endif}\r
   {$endif}\r
 \r

+\r
+\r
+  {$ifdef ipv6}\r
+    {$ifdef ver1_0}\r
+      cuint16=word;\r
+      cuint32=dword;\r
+      sa_family_t=word;\r
+\r      TInetSockAddr6 = packed record\r
+        sin6_family: word;\r
+        sin6_port: word;\r
+        sin6_flowinfo: uint32;\r
+        sin6_addr: tin6_addr;\r
+        sin6_scope_id: uint32;\r
+      end;\r
+    {$endif}\r
+  {$endif}\r
+  TinetSockAddrv = packed record\r
+    case integer of\r
+      0: (InAddr:TInetSockAddr);\r
+      {$ifdef ipv6}\r
+      1: (InAddr6:TInetSockAddr6);\r
+      {$endif}\r
+  end;\r
+  Pinetsockaddrv = ^Tinetsockaddrv;\r
+\r
+  type\r
+    tsockaddrin=TInetSockAddr;\r
+\r
+\r
+\r
+{\r
+bin IP list code, by beware\r
+while this is really just a string, on the interface side it must be treated\r
+as an opaque var which is passed as "var" when it needs to be modified}\r
+\r
+  tbiniplist=string;\r
+\r
+function biniplist_new:tbiniplist;\r
+procedure biniplist_add(var l:tbiniplist;ip:tbinip);\r
+function biniplist_getcount(const l:tbiniplist):integer;\r
+function biniplist_get(const l:tbiniplist;index:integer):tbinip;\r
+procedure biniplist_set(var l:tbiniplist;index:integer;ip:tbinip);\r
+procedure biniplist_setcount(var l:tbiniplist;newlen:integer);\r
+procedure biniplist_free(var l:tbiniplist);\r
+procedure biniplist_addlist(var l:tbiniplist;const l2:tbiniplist);\r
+function biniplist_tostr(const l:tbiniplist):string;\r
+function isbiniplist(const l:tbiniplist):boolean;\r
+\r

 function htons(w:word):word;\r
 function htonl(i:uint32):uint32;\r
 \r
 function ipstrtobin(const s:string;var binip:tbinip):boolean;\r
 function htons(w:word):word;\r
 function htonl(i:uint32):uint32;\r
 \r
 function ipstrtobin(const s:string;var binip:tbinip):boolean;\r

+function ipstrtobinf(const s:string):tbinip;\r

 function ipbintostr(const binip:tbinip):string;\r
 {$ifdef ipv6}\r
 function ip6bintostr(const bin:tin6_addr):string;\r
 function ipbintostr(const binip:tbinip):string;\r
 {$ifdef ipv6}\r
 function ip6bintostr(const bin:tin6_addr):string;\r


@@ -93,12 +144,21 @@ function ip6strtobin(const s:string;var bin:tin6_addr):boolean;
 {$endif}\r
 \r
 function comparebinip(const ip1,ip2:tbinip):boolean;\r
 {$endif}\r
 \r
 function comparebinip(const ip1,ip2:tbinip):boolean;\r

+procedure maskbits(var binip:tbinip;bits:integer);\r
+function comparebinipmask(ip1,ip2:tbinip;bits:integer):boolean;\r
+\r
+procedure addipsoffamily(var l:tbiniplist;const l2:tbiniplist;family:integer);\r

 \r
 {deprecated}\r
 function longip(s:string):longint;\r
 \r
 \r
 {deprecated}\r
 function longip(s:string):longint;\r
 \r

+function needconverttov4(const ip:tbinip):boolean;\r

 procedure converttov4(var ip:tbinip);\r
 \r
 procedure converttov4(var ip:tbinip);\r
 \r

+function inaddrvtobinip(inaddrv:tinetsockaddrv):tbinip;\r
+function makeinaddrv(addr:tbinip;port:string;var inaddr:tinetsockaddrv):integer;\r
+function inaddrsize(inaddr:tinetsockaddrv):integer;\r
+\r

 implementation\r
 \r
 uses sysutils;\r
 implementation\r
 \r
 uses sysutils;\r


@@ -121,6 +181,46 @@ begin
   {$endif}\r
 end;\r
 \r
   {$endif}\r
 end;\r
 \r

+\r
+function inaddrvtobinip(inaddrv:tinetsockaddrv):tbinip;\r
+begin\r
+  result.family := inaddrv.inaddr.family;\r
+  if result.family = AF_INET then result.ip := inaddrv.inaddr.addr;\r
+  {$ifdef ipv6}\r
+  if result.family = AF_INET6 then result.ip6 := inaddrv.inaddr6.sin6_addr;\r
+  {$endif}\r
+end;\r
+\r
+function makeinaddrv(addr:tbinip;port:string;var inaddr:tinetsockaddrv):integer;\r
+begin\r
+  result := 0;\r
+{  biniptemp := forwardlookup(addr,10);}\r
+  fillchar(inaddr,sizeof(inaddr),0);\r
+  //writeln('converted address '+addr+' to binip '+ipbintostr(biniptemp));\r
+  if addr.family = AF_INET then begin\r
+    inAddr.InAddr.family:=AF_INET;\r
+    inAddr.InAddr.port:=htons(strtointdef(port,0));\r
+    inAddr.InAddr.addr:=addr.ip;\r
+    result := sizeof(tinetsockaddr);\r
+  end else\r
+  {$ifdef ipv6}\r
+  if addr.family = AF_INET6 then begin\r
+    inAddr.InAddr6.sin6_family:=AF_INET6;\r
+    inAddr.InAddr6.sin6_port:=htons(strtointdef(port,0));\r
+    inAddr.InAddr6.sin6_addr:=addr.ip6;\r
+    result := sizeof(tinetsockaddr6);\r
+  end;\r
+  {$endif}\r
+end;\r
+\r
+function inaddrsize(inaddr:tinetsockaddrv):integer;\r
+begin\r
+  {$ifdef ipv6}\r
+  if inaddr.inaddr.family = AF_INET6 then result := sizeof(tinetsockaddr6) else\r
+  {$endif}\r
+  result := sizeof(tinetsockaddr);\r
+end;\r
+\r

 {internal}\r
 {converts dotted v4 IP to longint. returns host endian order}\r
 function longip(s:string):longint;\r
 {internal}\r
 {converts dotted v4 IP to longint. returns host endian order}\r
 function longip(s:string):longint;\r


@@ -173,6 +273,11 @@ begin
 end;\r
 \r
 \r
 end;\r
 \r
 \r

+function ipstrtobinf;\r
+begin\r
+  ipstrtobin(s,result);\r
+end;\r
+\r

 function ipstrtobin(const s:string;var binip:tbinip):boolean;\r
 begin\r
   binip.family := 0;\r
 function ipstrtobin(const s:string;var binip:tbinip):boolean;\r
 begin\r
   binip.family := 0;\r


@@ -378,18 +483,150 @@ begin
   result := (ip1.family = ip2.family);\r
 end;\r
 \r
   result := (ip1.family = ip2.family);\r
 end;\r
 \r

-{converts a binary IP to v4 if it is a v6 IP in the v4 range}\r
-procedure converttov4(var ip:tbinip);\r
+procedure maskbits(var binip:tbinip;bits:integer);\r
+const\r
+  ipmax={$ifdef ipv6}15{$else}3{$endif};\r
+type tarr=array[0..ipmax] of byte;\r
+var\r
+  arr:^tarr;\r
+  a,b:integer;\r
+begin\r
+  arr := @binip.ip;\r
+  if bits = 0 then b := 0 else b := ((bits-1) div 8)+1;\r
+  for a := b to ipmax do begin\r
+    arr[a] := 0;\r
+  end;\r
+  if (bits and 7 <> 0) then begin\r
+    arr[bits shr 3] := arr[bits div 8] and not ($ff shr (bits and 7))\r
+  end;\r
+end;\r
+\r
+function comparebinipmask;\r
+begin\r
+  maskbits(ip1,bits);\r
+  maskbits(ip2,bits);\r
+  result := comparebinip(ip1,ip2);\r
+end;\r
+\r
+function needconverttov4(const ip:tbinip):boolean;\r

 begin\r
   {$ifdef ipv6}\r
   if ip.family = AF_INET6 then begin\r
     if (ip.ip6.u6_addr32[0] = 0) and (ip.ip6.u6_addr32[1] = 0) and\r
     (ip.ip6.u6_addr16[4] = 0) and (ip.ip6.u6_addr16[5] = $ffff) then begin\r
 begin\r
   {$ifdef ipv6}\r
   if ip.family = AF_INET6 then begin\r
     if (ip.ip6.u6_addr32[0] = 0) and (ip.ip6.u6_addr32[1] = 0) and\r
     (ip.ip6.u6_addr16[4] = 0) and (ip.ip6.u6_addr16[5] = $ffff) then begin\r

-      ip.family := AF_INET;\r
-      ip.ip := ip.ip6.s6_addr32[3];\r
+      result := true;\r
+      exit;\r

     end;\r
   end;\r
   {$endif}\r
     end;\r
   end;\r
   {$endif}\r

+\r
+  result := false;\r
+end;\r
+\r
+{converts a binary IP to v4 if it is a v6 IP in the v4 range}\r
+procedure converttov4(var ip:tbinip);\r
+begin\r
+  {$ifdef ipv6}\r
+  if needconverttov4(ip) then begin\r
+    ip.family := AF_INET;\r
+    ip.ip := ip.ip6.s6_addr32[3];\r
+  end;\r
+  {$endif}\r
+end;\r
+\r
+{-----------biniplist stuff--------------------------------------------------}\r
+\r
+const\r
+  biniplist_prefix='bipl'#0;\r
+  //fpc 1.0.x doesn't seem to like use of length function in a constant \r
+  //definition\r
+  //biniplist_prefixlen=length(biniplist_prefix);\r
+\r  biniplist_prefixlen=5;\r
+  \r
+function biniplist_new:tbiniplist;\r
+begin\r
+  result := biniplist_prefix;\r
+end;\r
+\r
+procedure biniplist_add(var l:tbiniplist;ip:tbinip);\r
+var\r
+  a:integer;\r
+begin\r
+  a := biniplist_getcount(l);\r
+  biniplist_setcount(l,a+1);\r
+  biniplist_set(l,a,ip);\r
+end;\r
+\r
+function biniplist_getcount(const l:tbiniplist):integer;\r
+begin\r
+  result := (length(l)-biniplist_prefixlen) div sizeof(tbinip);\r
+end;\r
+\r
+function biniplist_get(const l:tbiniplist;index:integer):tbinip;\r
+begin\r
+  if (index >= biniplist_getcount(l)) then begin\r
+    fillchar(result,sizeof(result),0);\r
+    exit;\r
+  end;\r
+  move(l[index*sizeof(tbinip)+1+biniplist_prefixlen],result,sizeof(result));\r
+end;\r
+\r
+procedure biniplist_set(var l:tbiniplist;index:integer;ip:tbinip);\r
+begin\r
+  uniquestring(l);\r
+  move(ip,l[index*sizeof(tbinip)+1+biniplist_prefixlen],sizeof(ip));\r
+end;\r
+\r
+procedure biniplist_setcount(var l:tbiniplist;newlen:integer);\r
+begin\r
+  setlength(l,(sizeof(tbinip)*newlen)+biniplist_prefixlen);\r
+end;\r
+\r
+procedure biniplist_free(var l:tbiniplist);\r
+begin\r
+  l := '';\r
+end;\r
+\r
+procedure biniplist_addlist;\r
+begin\r
+  l := l + copy(l2,biniplist_prefixlen+1,maxlongint);\r
+end;\r
+\r
+function biniplist_tostr(const l:tbiniplist):string;\r
+var\r
+  a:integer;\r
+begin\r
+  result := '(';\r
+  for a := 0 to biniplist_getcount(l)-1 do begin\r
+    if result <> '(' then result := result + ', ';\r
+    result := result + ipbintostr(biniplist_get(l,a));\r
+  end;\r
+  result := result + ')';\r
+end;\r
+\r
+function isbiniplist(const l:tbiniplist):boolean;\r
+var\r
+  i : integer;\r
+begin\r
+  for i := 1 to biniplist_prefixlen do begin\r
+    if biniplist_prefix[i] <> l[i] then begin\r
+      result := false;\r
+      exit;\r
+    end;\r
+  end;\r
+  result := true;\r

 end;\r
 \r
 end;\r
 \r

+procedure addipsoffamily(var l:tbiniplist;const l2:tbiniplist;family:integer);\r
+var\r
+  a:integer;\r
+  biniptemp:tbinip;\r
+begin\r
+  for a := biniplist_getcount(l2)-1 downto 0 do begin\r
+    biniptemp := biniplist_get(l2,a);\r
+    if (biniptemp.family = family) then biniplist_add(l,biniptemp);\r
+  end;\r
+end;\r
+\r
+\r

 end.\r
 end.\r