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Make xmlNodeDumpOutput and htmlNodeDumpFormatOutput work with corrupted
parent pointers. This used to work with the old recursive code but the
non-recursive rewrite required parent pointers to be set correctly.
Unfortunately, lxml relies on the old behavior and passes subtrees with
a corrupted structure. Fall back to a recursive function call if an
invalid parent pointer is detected.
Fixes#255.
Check parent pointers for NULL after the non-recursive rewrite of the
serialization code. This avoids segfaults with corrupted documents
which can apparently be seen with lxml, see issue #187.
At least when merely public API is to be leveraged, one cannot use
xmlBufCreate function that would otherwise be a clear fit, and relying
on some invariants wrt. how some other struct fields will get
initialized along the construction/filling such parent struct and
(ab)using that instead does not appear clever, either.
Hence, instruct people what's the Right Thing for the moment, that is,
make them use xmlNodeDumpOutput instead (together with likewise public
xmlAllocOutputBuffer).
Going forward, it's questionable what do with xmlBuf* family of
functions that are once public, since they, for any practical purpose,
cannot be used by the library clients (that's how I've run into this).
Signed-off-by: Jan Pokorný <jpokorny@redhat.com>
If libz or liblzma are detected with pkg-config, AC_CHECK_HEADERS must
not be run because the correct CPPFLAGS aren't set. It is actually not
required have separate checks for LIBXML_ZLIB_ENABLED and HAVE_ZLIB_H.
Only check for LIBXML_ZLIB_ENABLED and remove HAVE_ZLIB_H macro.
Fixes bug 764657, bug 787041.
The serializer sets doc->encoding to a temporary value and restores
the original value when it's done. This overwrites the encoding value
set in xmlBufAttrSerializeTxtContent, causing a memory leak.
Don't mess with doc->encoding if invalid UTF-8 is encountered.
Found with libFuzzer and ASan.
For https://bugzilla.gnome.org/show_bug.cgi?id=766414
* xmlsave.c: xmlBufAttrSerializeTxtContent() if an attribute value
is not UTF-8 be more careful when serializing it as we may do an
out of bound access as a result.
* save.h: new header providing new functions currently internal
and xmlBuf counterparts of old xmlBuffer based ones
* xmlsave.c: convert functions to use xmlBuf as much as possible
non destructive indentation option using spaces within markup
constructs and hence not modifying content
* include/libxml/xmlsave.h: new option
* xmlsave.c: some refactoring and new code for the new option
* xmllint.c: adds --pretty option where option 2 uses the new formatting
* SAX2.c dict.c error.c hash.c nanohttp.c parser.c python/libxml.c
relaxng.c runtest.c tree.c valid.c xinclude.c xmlregexp.c xmlsave.c
xmlschemas.c xpath.c xpointer.c: mostly removing unneded affectations,
but this led to a few real bugs and some part not yet understood
(relaxng/interleave)
* include/libxml/xmlsave.h xmlsave.c: new options to serialize
as XML/HTML/XHTML and restore old entry point behaviours
Daniel
svn path=/trunk/; revision=3794
* trionan.c: Borland C fix from Moritz Both
* testapi.c: regenerate, workaround a problem for buffer testing
* xmlIO.c HTMLtree.c: new internal entry point to hide even better
xmlAllocOutputBufferInternal
* tree.c: harden the code around buffer allocation schemes
* parser.c: restore the warning when namespace names are not absolute
URIs
* runxmlconf.c: continue regression tests if we get the expected
number of errors
* Makefile.am: run the python tests on make check
* xmlsave.c: handle the HTML documents and trees
* python/libxml.c: convert python serialization to the xmlSave APIs
and avoid some horrible hacks
Daniel
svn path=/trunk/; revision=3790
* xmlsave.c parser.c: fix handling of empty CDATA nodes as
reported and discussed around #514181 and associated patches
* test/emptycdata.xml result/emptycdata.xml*
result/noent/emptycdata.xml: added a specific test in the
regression suite.
Daniel
svn path=/trunk/; revision=3701
* xmlsave.c: fix to avoid a crash when dumping an attribute from
an XHTML document, patch contributed to fix#485298
Daniel
svn path=/trunk/; revision=3660
* encoding.c: Fixed typo in xmlCharEncFirstLine pointed out
by Mark Rowe (bug #440159)
* include/libxml/xmlversion.h.in: Added check for definition of
_POSIX_C_SOURCE to avoid warnings on Apple OS/X (patch from
Wendy Doyle and Mark Rowe, bug #346675)
* schematron.c, testapi.c, tree.c, xmlIO.c, xmlsave.c: minor
changes to fix compilation warnings - no change to logic.
svn path=/trunk/; revision=3618
* nanoftp.c: applied patch from Björn Wiberg to try to fix again
the silly __ss_familly problem on various AIXes, should fix#420184
Daniel
svn path=/trunk/; revision=3592
* xmllint.c: started to switch xmllint to use xmlSaveDoc to test
#342556
* xmlsave.c: fixed#342556 easy and a whole set of problems with
encodings, BOM and xmlSaveDoc()
Daniel
* xmlsave.c: fixed a comment
* xinclude.c include/libxml/xinclude.h: applied a patch from Michael Day
to add a new function providing the _private field for the generated
parser contexts xmlXIncludeProcessFlagsData()
Daniel
* xmlsave.c: Removed the automatic generation of CDATA sections
for the content of the "script" and "style" elements when
serializing XHTML. The issue was reported by Vincent Lefevre,
bug #345147.
* result/xhtml1 result/noent/xhtml1: Adjusted regression test
results due to the serialization change described above.
* xmlsave.c xmlIO.c include/libxml/xmlIO.h include/libxml/xmlsave.h:
applied patch from Geert Jansen to implement the save function to
a xmlBuffer, and a bit of cleanup.
Daniel
* xmlsave.c: applied second patch from David Madore to be less intrusive
when handling scripts and style elements in XHTML1 should fix#316041
* test/xhtml1 result//xhtml1\*: updated the test accordingly
Daniel
* include/libxml/xmlsave.h xmlsave.c: add XML_SAVE_NO_EMPTY save option
and use option from xmlSaveCtxtPtr rather than global during output.
* xmlsave.c: fix some output formatting for meta element under XHTML.
* doc/apibuild.py doc/elfgcchack.xsl: revamped the elfgcchack.h
format to cope with gcc4 change of aliasing allowed scopes, had
to add extra informations to doc/libxml2-api.xml to separate
the header from the c module source.
* *.c: updated all c library files to add a #define bottom_xxx
and reimport elfgcchack.h thereafter, and a bit of cleanups.
* doc//* testapi.c: regenerated when rebuilding the API
Daniel
* xmlsave.c: fixed bug reported by Petr Pajas, in the absence of
encoding UTF-8 should really be assumed. This may break if
the HTTP headers indicates for example ISO-8859-1 since this
then becomes a well formedness error.
Daniel
* xmlsave.c: fixed problem when XMLLINT_INDENT was empty (bug 168033).
* xpath.c: fixed compilation warning, no change to logic.
* xmlschemastypes.c: fixed compilation warning, no change to logic.
* dict.c: fixed compilation warning
* parser.c: changed xmlWarningMsg so ctxt->errNo is not set
* xmllint.c: changed to return non-zero status if error
on xinclude processing
* xmlsave.c: minor deletion of a redundant condition statement
* xmlschemastypes.c: trying to fix at least the message from
bug #158628
* include/libxml/xmlsave.h xmlsave.c: added first xmlsave option
for format, c.f. bug #159997
Daniel
* gentest.py testapi.c: autogenerate a minimal NULL value sequence
for unknown pointer types
* HTMLparser.c SAX2.c chvalid.c encoding.c entities.c parser.c
parserInternals.c relaxng.c valid.c xmlIO.c xmlreader.c
xmlsave.c xmlschemas.c xmlschemastypes.c xmlstring.c xpath.c
xpointer.c: This uncovered an impressive amount of entry points
not checking for NULL pointers when they ought to, closing all
the open gaps.
Daniel
* gentest.py testapi.c: fixed the way the generator works,
extended the testing, especially with more real trees and nodes.
* HTMLtree.c tree.c valid.c xinclude.c xmlIO.c xmlsave.c: a bunch
of real problems found and fixed.
* entities.c: fix error reporting to go through the new handlers
Daniel
* valid.c xmlsave.c: fixed 2 problems raised by #152140, one
which is that notation not in the internal subset should
not be saved, and the second more nasty on an error saving
NOTATIONs, if there is a proof that nobody uses notations !
Daniel
* Makefile.am: added a dumb rule to able to compile tst.c
when people submit a sample test program
* xmlschemas.c: applied small patch from Eric Haszlakiewicz
to document xmlSchemasSetValidErrors() limitations, #141827
* error.c: Add information in generic and structured error
setter functions that this need to be done per thread #144308
* xmlsave.c: fixed bug whith missing NOTATION(s) serialization
bug #144162
* doc/xmllint.xml: typo fix#144840
Daniel
* elfgcchack.h doc/elfgcchack.xsl libxml.h: hack based on Arjan van de
Ven suggestion to reduce ELF footprint and generated code. Based on
aliasing of libraries function to generate direct call instead of
indirect ones
* doc/libxml2-api.xml doc/Makefile.am doc/apibuild.py: added automatic
generation of elfgcchack.h based on the API description, extended
the API description to show the conditionals configuration flags
required for symbols.
* nanohttp.c parser.c xmlsave.c include/libxml/*.h: lot of cleanup
* doc/*: regenerated the docs.
Daniel
* xmlIO.c xmlsave.c include/libxml/xmlIO.h: second pass on escaping
handling, start to looks better, need to be completed and added
directly at the saving context level.
Daniel
* xmlIO.c xmlsave.c include/libxml/xmlIO.h: first pass at refactoring
the escape on save routines for better performances (less malloc)
and more flexibility using the new saving context. Preliminary
work, interface will change.
Daniel
* xmlsave.c: apply fix for XHTML1 formating from Nick Wellnhofer
fixes bug #141266
* test/xhtmlcomp result//xhtmlcomp*: added the specific regression
test
Daniel
* xmlsave.c: move the TODO as comments as the function while not
finished are usable as-is
* xmlschemas.c include/libxml/xmlerror.h: patch from Kasimier Buchcik
implementing union
* test/schemas/union_0_0.x* result/schemas/union_0_0*: added example
* python/Makefile.am: applied fix from Mike Hommey
Daniel
