Fixes bug 783026.

Thanks to Pranjal Jumde for the report.

David Kilzer authored Apr 05, 2016 and Daniel Veillard committed May 23, 2016

For https://bugzilla.gnome.org/show_bug.cgi?id=764616

This code is used only if turning memory allocation debug
in configure with --with-mem-debug, which should never happen
in real life, so not a serious issue.

* xmlmemory.c:
(MAX_SIZE_T): Macro to define maximum value of size_t.
(xmlMallocAtomicLoc): Add bounds check.  Fix description and use
the correct function name in another error message.

Martin von Gagern authored Apr 13, 2015 and Daniel Veillard committed Apr 13, 2015

For https://bugzilla.gnome.org/show_bug.cgi?id=747437
just use the mutex to protect access to those variables

Yegor Yefremov authored Oct 10, 2014 and Daniel Veillard committed Oct 13, 2014

If realloc fails, free original pointer.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>

Gaurav authored Jul 26, 2014 and Daniel Veillard committed Jul 26, 2014

For https://bugzilla.gnome.org/show_bug.cgi?id=733711

Gaurav authored May 09, 2014 and Daniel Veillard committed May 09, 2014

Fix a use before check on pointer
For https://bugzilla.gnome.org/show_bug.cgi?id=729849

Remove all space before tabs and space and tabs at end of lines.

Also use %lu as that is more appropriate for size_t.

* include/libxml/parser.h include/libxml/xmlwriter.h
  include/libxml/relaxng.h include/libxml/xmlversion.h.in
  include/libxml/xmlwin32version.h.in include/libxml/valid.h
  include/libxml/xmlschemas.h include/libxml/xmlerror.h:
  port patch from Marcus Meissner to add gcc checking for
  printf like functions parameters, should fix #65068
* doc/apibuild.py doc/*: modified the script accordingly
  and regenerated
* xpath.c xmlmemory.c threads.c: fix a few warnings
Daniel

svn path=/trunk/; revision=3813

* include/libxml/xmlmemory.h xmlmemory.c: add xmlMemDisplayLast to
  help debug incremental memory leaks, and some cleanups
* runxmlconf.c: use that new call and avoid ever touching the
  system catalog in the regression tests
Daniel

svn path=/trunk/; revision=3760

* xmlmemory.c: xmlFree(NULL) should not crash in debug mode
  should fix #491651
Daniel

svn path=/trunk/; revision=3662

* include/libxml/xmlversion.h.in: fix comment on versions
* xmlmemory.c: do not spend too much time digging in dumped memory
Daniel

* xmlmemory.c: fixed #169630 segfault in xmlMemDisplay
Daniel

* xmlmemory.c: added the call to the breakpoint routine
  when a monitored block is reallocated or freed
Daniel

* 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

* valid.c: fixed ID deallocation problem based on patch from
  Steve Shepard fixes bug #160893
* xmlmemory.c: improving comment.
* testapi.c: new test for xmlDictExists() is generated.
Daniel

* xmlmemory.c include/libxml/xmlmemory.h: adding xmlMemBlocks()
* Makefile.am gentest.py testapi.c: work on generator of an
  automatic API regression test tool.
* SAX2.c nanoftp.c parser.c parserInternals.c tree.c xmlIO.c
  xmlstring.c: various API hardeing changes as a result of running
  teh first set of automatic API regression tests.
* test/slashdot16.xml: apparently missing from CVS, commited it
Daniel

* nanohttp.c, include/libxml/nanohttp.h: added the routine
  xmlNanoHTTPContentLength to the external API (bug151968).
* parser.c: fixed unnecessary internal error message (bug152060);
  also changed call to strncmp over to xmlStrncmp.
* encoding.c: fixed compilation warning (bug152307).
* tree.c: fixed segfault in xmlCopyPropList (bug152368); fixed
  a couple of compilation warnings.
* HTMLtree.c, debugXML.c, xmlmemory.c: fixed a few compilation
  warnings; no change to logic.

* xmlmemory.c: applied a small fix from Steve Hay
Daniel

* xmlmemory.c python/libxml.c python/libxml2-python-api.xml:
  some updates with memory debugging facilities while messing
  with libxslt python bindings
Daniel

* python/libxml.c python/generator.py python/libxml.py
  python/libxml2-python-api.xml python/libxml2class.txt:
  applied patch from Stphane Bidoul to fix some Python bindings
  initialization, then had to change the parserCleanup()
  to handle memory released there.
* xmlmemory.c: added more debugging comments.
Daniel

* configure.in, xmlmemory.c, globals.c: fixed problem when
  configuring using --with-thread-alloc

* xmlmemory.c: applied suggestion from Miloslav Trmac (see
  Bug 130419) and eliminated xmlInitMemoryDone.  More
  improvement needed.

* xml2-config.in: added an additional flag (--exec-prefix) to
  allow library directory to be different from include directory
  (Bug 129558).

* SAX2.c: found and fixed a bug misallocating some non
  blank text node strings from the dictionnary.
* xmlmemory.c: fixed a problem with the memory debug mutex
  release.
Daniel

* parser.c, xmlmemory.c, include/libxml/xmlmemory.h: Fixed
  memory leak reported by Dave Beckett
* xmlschemas.c: Removed spurious comment reported on the mailing
  list
* xinclude.c, xpath.c, xpointer.c, libxml/include/xpointer.h:
  Further work on Bug 129967 concerning xpointer range handling
  and range-to function; much better, but still not complete

* xmlmemory.c: enhanced by adding mutex to protect global
  structures in a multi-threading environment.  This fixed
  some random errors on the Threads regression tests.

* encoding.c, include/libxml/encoding.h: Enhanced the handling of
  UTF-16, UTF-16LE and UTF-16BE encodings.  Now UTF-16 output is
  handled internally by default, with proper BOM and UTF-16LE
  encoding.  Native UTF-16LE and UTF-16BE encoding will not generate
  BOM on output, and will be automatically recognized on input.
* test/utf16lebom.xml, test/utf16bebom.xml, result/utf16?ebom*:
  added regression tests for above.

* HTMLtree.c SAX2.c c14n.c catalog.c configure.in debugXML.c
  encoding.c entities.c nanoftp.c nanohttp.c parser.c relaxng.c
  testAutomata.c testC14N.c testHTML.c testRegexp.c testRelax.c
  testSchemas.c testXPath.c threads.c tree.c valid.c xmlIO.c
  xmlcatalog.c xmllint.c xmlmemory.c xmlreader.c xmlschemas.c
  example/gjobread.c include/libxml/HTMLtree.h include/libxml/c14n.h
  include/libxml/catalog.h include/libxml/debugXML.h
  include/libxml/entities.h include/libxml/nanohttp.h
  include/libxml/relaxng.h include/libxml/tree.h
  include/libxml/valid.h include/libxml/xmlIO.h
  include/libxml/xmlschemas.h include/libxml/xmlversion.h.in
  include/libxml/xpathInternals.h python/libxml.c:
  Okay this is scary but it is just adding a configure option
  to disable output, this touches most of the files.
Daniel

* xmlmemory.c: better fix, avoids breaking the python bindings
Daniel

* xmlmemory.c: fix a compilation problem when configuring
  with debug but without mem-debug
Daniel

* Makefile.am: cleanup, creating a new legacy.c module,
  made sure make tests ran in reduced conditions
* SAX.c SAX2.c configure.in entities.c globals.c parser.c
  parserInternals.c tree.c valid.c xlink.c xmlIO.c xmlcatalog.c
  xmlmemory.c xpath.c xmlmemory.c include/libxml/xmlversion.h.in:
  increased the modularization, allow to configure out
  validation code and legacy code, added a configuration
  option --with-minimum compiling only the mandatory code
  which then shrink to 200KB.
Daniel

* error.c HTMLparser.c testC14N.c testHTML.c testURI.c
  xmlcatalog.c xmlmemory.c xmlreader.c xmlschemastypes.c
  python/libxml.c include/libxml/xmlmemory.h: small changes
  to syntax to get rid of compiler warnings.  No changes
  to logic.

* Makefile.am testOOM.c testOOMlib.[ch] : integrated the Out Of
  Memory test from Havoc Pennington #109368
* SAX.c parser.c parserInternals.c tree.c uri.c valid.c
  xmlmemory.c xmlreader.c xmlregexp.c include/libxml/tree.h
  include/libxml/parser.h: a lot of memory allocation cleanups
  based on the results of the OOM testing
* check-relaxng-test-suite2.py: seems I forgot to commit the
  script.
Daniel

* DOCBparser.c HTMLparser.c c14n.c catalog.c encoding.c globals.c
  nanohttp.c parser.c parserInternals.c relaxng.c tree.c uri.c
  xmlmemory.c xmlreader.c xmlregexp.c xpath.c xpointer.c
  include/libxml/globals.h include/libxml/xmlmemory.h: added
  xmlMallocAtomic() to be used when allocating blocks which
  do not contains pointers, add xmlGcMemSetup() and xmlGcMemGet()
  to allow registering the full set of functions needed by
  a garbage collecting allocator like libgc, ref #109944
Daniel

* doc/apibuild.py doc/libxml2-api.xml doc/Makefile.am: new API
  building Python script, does the C parsing directly, generates
  a better API description including structure fieds defs and
  enums. Still a couple of bugs, but good enough for the python
  wrappers now.
* DOCBparser.c SAX.c nanohttp.c parser.c parserInternals.c tree.c
  valid.c xmlIO.c xmlmemory.c xmlreader.c xmlregexp.c xmlschemas.c
  include/libxml/schemasInternals.h include/libxml/tree.h: more
  cleanup based on the python analysis script reports.
* libxml.spec.in: make sure the API XML description is part of the
  devel package.
Daniel

* DOCBparser.c HTMLparser.c c14n.c debugXML.c encoding.c hash.c
  nanoftp.c nanohttp.c parser.c parserInternals.c testC14N.c
  testDocbook.c threads.c tree.c valid.c xmlIO.c xmllint.c xmlmemory.c
  xmlreader.c xmlregexp.c xmlschemas.c xmlschemastypes.c xpath.c:
  code cleanup, especially the function comments.
* tree.c: fixed a small bug when freeing nodes which are XInclude ones.
Daniel

* configure.in: fixed configure for MPE/iX from Markus Henke
* xmlmemory.c: fixed initialization problems
* xpath.c: another set of patches from Richard Jinks this
  fixes "make XPathtests" on linux
Daniel

* configure.in: preparing 2.4.18
* doc/*: updated and rebuilt the web site
* *.c libxml.h: implement the new IN_LIBXML scheme discussed with
  the Windows and Cygwin maintainers.
* parser.c: humm, changed the way the SAX parser work when
  xmlSubstituteEntitiesDefault(1) is set, it will then
  do the entity registration and loading by itself in case the
  user provided SAX getEntity() returns NULL.
* testSAX.c: added --noent to test the behaviour.
Daniel

* parser.c: humm, changed the way the SAX parser work when
  xmlSubstituteEntitiesDefault(1) is set, it will then
  do the entity registration and loading by itself in case the
  user provided SAX getEntity() returns NULL.
* testSAX.c: added --noent to test the behaviour.
Daniel

* xmlmemory.c: avoid a warning bug #71594
Daniel