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Hash : 63588f47
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Date : 2013-05-10T14:01:46

Fix a regression in xmlGetDocCompressMode()

The switch to xzlib had for consequence that the compression
level of the input was not gathered anymore in ctxt->input->buf,
then the parser compression flags was left to -1 and propagated
to the resulting document.
Fix the I/O layer to get compression detection in xzlib,
then carry it in the input buffer and the resulting document

  This should fix
    https://lsbbugs.linuxfoundation.org/show_bug.cgi?id=3456

xzlib.h

/**
 * xzlib.h: header for the front end for the transparent suport of lzma
 *          compression at the I/O layer
 *
 * See Copyright for the status of this software.
 *
 * Anders F Bjorklund <afb@users.sourceforge.net>
 */

#ifndef LIBXML2_XZLIB_H
#define LIBXML2_XZLIB_H
typedef void *xzFile;           /* opaque lzma file descriptor */

xzFile __libxml2_xzopen(const char *path, const char *mode);
xzFile __libxml2_xzdopen(int fd, const char *mode);
int __libxml2_xzread(xzFile file, void *buf, unsigned len);
int __libxml2_xzclose(xzFile file);
int __libxml2_xzcompressed(xzFile f);
#endif /* LIBXML2_XZLIB_H */

kc3-lang/libxml2/xzlib.h

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xzlib.h