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Posted to c-dev@xerces.apache.org by PeiYong PY Zhang <pe...@ca.ibm.com> on 2002/02/11 22:46:27 UTC
Re: DO NOT REPLY [Bug 6330] New: - Base64::encode does not work
Nikolaj,
The patch to the problem mentioned shall be available from the next nightly
build,
please help to test if it works on your SUN platform, thanks.
Rgds,
PeiYong
bugzilla@apache.org wrote:
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> http://nagoya.apache.org/bugzilla/show_bug.cgi?id=6330
>
> Base64::encode does not work
>
> Summary: Base64::encode does not work
> Product: Xerces-C++
> Version: 1.6.0
> Platform: Sun
> OS/Version: Solaris
> Status: NEW
> Severity: Critical
> Priority: Other
> Component: Utilities
> AssignedTo: xerces-c-dev@xml.apache.org
> ReportedBy: nberntsen@visionik.com
> CC: nberntsen@visionik.com
>
> at Base64.cpp:157
> split1stOctet( inputData[ inputIndex++ ], b1, b2 );
> can return "wild" values for b1 (and the b2, as can the other slit*Octet).
>
> b1 (and others) are used at Base64.cpp:162 ++
>
> encodedData[ outputIndex++ ] = base64Alphabet[ b1 ];
>
> where they provide out-of range values for encodedDaat.
>
> The problem is with the definition of the slit*Octet functions:
>
> inline void Base64::split1stOctet(const XMLCh& ch, XMLCh& b1, XMLCh& b2) {
> b1 = ch >> 2;
> b2 = ( ch & 0x3 ) << 4;
> }
>
> Which takes an XMLCh 16 Bit value (at least, that is what they are on the
> SUN,Solaris) and hope to get a 6 bit value by a two bit shift operation. It is
> probably the right thing to do with 8bit chars.
>
> I believe that XMLCh is alway UTF-16, which means that one should
> probably work on char's instead.
>
> Regards
> Nikolaj
>
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