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Remove calls to generic error handler or use stderr for
- legacy deprecation warnings
- nanohttp, nanoftp in standalone mode
- memory debug messages
Use xmlRaiseMemoryError.
Remove TODO macro.
Don't raise errors in xmlmodule.c.
Fix places where malloc failures aren't reported.
Introduce a new API function xmlPatternCompileSafe that returns a
separate error code if a memory allocation fails.
Remove explicit integer casts as final operation
- in assignments
- when passing arguments
- when returning values
Remove casts
- to the same type
- from certain range-bound values
The main motivation is that these explicit casts don't change the result
of operations and only render UBSan's implicit-conversion checks
useless. Removing these casts allows UBSan to detect cases where
truncation or sign-changes occur unexpectedly.
Document some explicit casts as truncating and add a few missing ones.
This code has been broken and deprecated since version 2.6.0, released
in 2003. Because of a bug in commit 961b535c, DOCBparser.c was never
compiled since 2012. I couldn't find a Debian package using any of its
symbols, so it seems safe to remove this module.
Since xmlFreePattern tried to free the next pattern recursively, its
behavior is identical to xmlFreePatternList. Make it call
xmlFreePatternList to avoid call stack overflows.
Found by OSS-Fuzz.
clang recently grew a warning on `for (...);`. This patch
fixes all two instances of this pattern in libxml. The changes
don't modify the code semantic.
* xpath.c: Applied patch from Rob Richards, fixing a potential
memory leak in xmlXPathTryStreamCompile(), when a list of
namespaces was assigned to the XPath compilation context;
here a new namespace list was created and passed to
xmlPatterncompile(); but this list was not freed afterwards.
Additionally we avoid now in xmlXPathTryStreamCompile() to
compile the expression, if it has a colon - indicating
prefixed name tests - and no namespace list was given. The
streaming XPath mechanism needs a namespace list at
compilation time (unlike normal XPath, where we can bind
namespace names to prefixes at execution time).
* pattern.c: Enhanced to use a string dict for local-names,
ns-prefixes and and namespace-names.
Fixed xmlStreamPushInternal() not to use string-pointer
comparison if a dict is available; this won't work, since
one does not know it the given strings originate from the
same dict - and they normally don't do, since e.g.
namespaces are hold on xmlNs->href. I think this would be
worth an investigation: if we can add a @doc field to xmlNs
and put the @href in to a additionan namespace dict hold
in xmlDoc. Daniel will surely not like this idea :-) But
evaluation of tons of elements/attributes in namespaces
with xmlStrEqual() isn't the way we should go forever.
* NEWS configure.in libxml.spec.in testapi.c doc/*: upated the news
regenerated the docs, preparing for release of 2.6.23
* pattern.c xmlschemas.c: fixed some comments
Daniel
* pattern.c xpath.c include/libxml/pattern.h:
Fixed bug #322928, reported by Erich Schubert: The bug was
in pattern.c, which is used for a tiny subset of xpath
expression which can be evaluated in an optimized way.
The doc-node was never considered when evaluating "//"
expressions. Additionally, we fixed resolution
to nodes of any type in pattern.c; i.e. a "//." didn't work
yet, as it did select only element-nodes. Due to this
issue the pushing of nodes in xpath.c needed to be adjusted
as well.
* xmlschemas.c: Fixed a potential memory leak in
xmlSchemaCheckCSelectorXPath() when an internal error occurs.
Fixed setting of ctxt->err to the given error code in
the parsing error functions.
* pattern.c: Added internal xmlCompileIDCXPathPath() as a
starting point for IDC XPath compilation; this and some other
tiny changes fixes issues regarding whitespace in the
expressions and IDC selector/field relevant restrictions of
the subset of XPath. Fixed a missing blocking of attributes
in xmlStreamPushInternal().
* tree.c pattern.c: Silenced intel compiler warnings (reported
by Kjartan Maraas, bug #318517).
* xmlschemas.c: The above changes in pattern.c revealed an
inconsistency wrt IDCs: we now _only_ pop XPath states, if
we really pushed them beforehand; this was previously not
checked for the case when we discover an element node to be
invalid wrt the content model.
Fixed segfault in xmlSchemaGetEffectiveValueConstraint().
* xmlschemas.c: Fixed some identity-constraint issues:
Restructured IDC node-tables
Allowed IDCs to resolve also to nodes of complex type with
simple content.
Added check for keyrefs with references to keyrefs.
IDC target-nodes were interferring with IDC node-tables,
since they used one list of entries only. I separated this
one big list into 3 lists: 1 for IDC node-table entries,
1 for _duplicates_ of IDC node-table entries and 1 for
IDC target-nodes. More code, but cleaner and it works at last.
Keyrefs will fail to resolve to duplicate key/unique entries.
I thought this was already working this way, but it didn't.
The wording of the definition for [node table] in the spec
can lead to a scenario, where keyrefs resolve perfectly, even
if the relevant key-sequences of the referenced key/unique have
duplicates in the subtree. Currently only Saxon 8.5.1 is
dissallowing resolution to duplicate entries correctly - we
will follow Saxon here.
Removed some intel compiler warnings (reported by
Kjartan Maraas, bug #318517).
* pattern.c: Fixed an IDC-XPath problem when resolving to
attributes.
* pattern.c xpath.c include/libxml/pattern.h: fixing yet another
pattern induced XPath bug #314282
* relaxng.c: reverted back last change it was seriously broken
Daniel
* pattern.c include/libxml/pattern.h: changed xmlPatterncompile
signature to pass an int and not an enum since it can generate
ABI compat troubles.
* include/libxml/schematron.h schematron.c: adding the new
schematron code, work in progress lots to be left and needing
testing
* include/libxml/xmlversion.h.in include/libxml/xmlwin32version.h.in
Makefile.am configure.in: integration of schematron into the
build
* xpath.c include/libxml/xpath.h: adding flags to control compilation
options right now just XML_XPATH_CHECKNS.
Daniel
* pattern.c: Changed xmlCompileStepPattern() and
xmlCompileAttributeTest() to handle the "xml" prefix without
caring if the XML namespace was supplied by the user.
* pattern.c: Fixed evaluation of attributes. Actually only
attribute at the first level were evaluated (e.g. "@attr");
expression like "foo/@attr" always failed.
* pattern.c: Some changes/fixes to the streaming evaluation.
* xmlschemas.c: A bit of support for parsing the schema for
schema. Fixed attribute derivation when the use is
"prohibited" and was "optional". Fixed an attribute construction
bug, a left-over from the time, where <complexContent>,
<extension>, etc. where created as structs.
* pattern.c, xpath.c, include/libxml/pattern.h: Further
enhancement for XPath streaming, consolidated with
schemas usage of pattern.c. Added a new enum
xmlPatternFlags.
* doc/*, testapi.c, elfgcchack.h: updated to reflect new
enum.
* test/XPath/tests/mixedpat, test/XPath/docs/mixed,
result/XPath/mixedpat: added regression test for problems
reported in bug306348
* xpath.c, pattern.c: Enhanced xmlXPathRunStreamEval, fixed
handling of depth/level for cases like union operator
(bug #306348 reported by Bob Stayton). Also enhanced
several comments throughout pattern.c.
* doc/apibuild.py: fixed problem in handling of
'signed' declaration. Rebuilt the docs.
* pattern.c: Changed the XPath "." to resolve only on the first
level for XML Schema IDCs. This should not affect pattern-like
resolution on every level.
* 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
* python/generator.py python/libxml.py: another patch from Brent
Hendricks to add new handlers with the various validity contexts
* python/tests/Makefile.am python/tests/validDTD.py
python/tests/validRNG.py python/tests/validSchemas.py: also
added the regression tests he provided
Daniel
* xmlschemas.c: Enabled IDC parsing and validation.
* xmlschemastypes.c include/libxml/xmlschemastypes.h:
Added xmlSchemaCopyValue to the API; this was done due to
validation of default attributes against IDCs: since IDC keys
consume the precomputed value, one needs a copy.
* pattern.c: Enabled IDC support; this is currently done
via calling xmlPatterncompile with a flag arg of 1.
* encoding.c: fix the comment to describe the real return values
* pattern.c xpath.c include/libxml/pattern.h: lot of work on
the patterns, pluggin in the XPath default evaluation, but
disabled right now because it's not yet good enough for XSLT.
pattern.h streaming API are likely to be changed to handle
relative and absolute paths in the same expression.
Daniel
* pattern.c: fixed the namespaces support
* tree.c: fixed xmlGetNodePath when namespaces are used
* result/pattern/multiple result/pattern/namespaces
test/pattern/multiple.* test/pattern/namespaces.*: added
more regression tests
Daniel
* Makefile.am: use the walker to test the patterns instead of
the normal reader
* pattern.c xmllint.c: bug fixes in the train including fixing the
stupid build break.
Daniel
