Hi all.
At a customer site we had the case that one configuration file we always
write from our app was 789KB of binary zeros (0x00 / '\0').
The call we use to save the file is:
xmlSaveFormatFileEnc(
WCharToUTF8(m_csXMLFile).c_str(), // generate UTF8 name from CString
m_xmldoc,
XML_ENCODING_UTF8,
1
);
I thought maybe someone has a creative idea what could have happened to
our program state to create such a file through this call. (Of course
the whole thing isn't reproducible :/ )
Note:
I have seen that saving the data ends up in xmlio.c:xmlFileWrite which
calls fwrite(&buffer[0], len, 1, (FILE *) context)
The call comes from xmlio.c:xmlOutputBufferFlush where the writecallback
is invoked:
ret = out->writecallback(out->context, (const char *)out->conv->content,
out->conv->use);
So for libxml to actually generate such a file we'd need a valid
xmlBufferPtr(out->conv) with a sufficiently large buffer that is zero'd out.
Not much chance for that, or??
Thx in adv for any ideas and pointers, libxml related or not!
cheers,
Martin
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