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asn1util.pas - INT64 support in ASNEncInt and ASNItem.

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git-svn-id: https://svn.code.sf.net/p/synalist/code/trunk@175 7c85be65-684b-0410-a082-b2ed4fbef004
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geby 2013-02-05 16:16:35 +00:00
parent b153e2469b
commit b3a48acebb
1 changed files with 14 additions and 8 deletions
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22
asn1util.pas
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@ -1,9 +1,9 @@
{==============================================================================|
| Project : Ararat Synapse | 001.004.004 |
| Project : Ararat Synapse | 002.000.000 |
|==============================================================================|
| Content: support for ASN.1 BER coding and decoding |
|==============================================================================|
| Copyright (c)1999-2003, Lukas Gebauer |
| Copyright (c)1999-2013, Lukas Gebauer |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
@ -33,7 +33,7 @@
| DAMAGE. |
|==============================================================================|
| The Initial Developer of the Original Code is Lukas Gebauer (Czech Republic).|
| Portions created by Lukas Gebauer are Copyright (c) 1999-2003 |
| Portions created by Lukas Gebauer are Copyright (c) 1999-2013 |
| Portions created by Hernan Sanchez are Copyright (c) 2000. |
| All Rights Reserved. |
|==============================================================================|
@ -103,7 +103,7 @@ function ASNEncLen(Len: Integer): AnsiString;
function ASNDecLen(var Start: Integer; const Buffer: AnsiString): Integer;
{:Encodes a signed integer to ASN.1 binary}
function ASNEncInt(Value: Integer): AnsiString;
function ASNEncInt(Value: Int64): AnsiString;
{:Encodes unsigned integer into ASN.1 binary}
function ASNEncUInt(Value: Integer): AnsiString;
@ -214,23 +214,28 @@ begin
end;
{==============================================================================}
function ASNEncInt(Value: Integer): AnsiString;
function ASNEncInt(Value: Int64): AnsiString;
var
x, y: Cardinal;
x: Int64;
y: byte;
neg: Boolean;
begin
neg := Value < 0;
x := Abs(Value);
if neg then
x := not (x - 1);
x := x - 1;
Result := '';
repeat
y := x mod 256;
x := x div 256;
if neg then
y := not y;
Result := AnsiChar(y) + Result;
until x = 0;
if (not neg) and (Result[1] > #$7F) then
Result := #0 + Result;
if (neg) and (Result[1] < #$80) then
Result := #$FF + Result;
end;
{==============================================================================}
@ -265,7 +270,8 @@ function ASNItem(var Start: Integer; const Buffer: AnsiString;
var
ASNType: Integer;
ASNSize: Integer;
y, n: Integer;
y: int64;
n: Integer;
x: byte;
s: AnsiString;
c: AnsiChar;