Harden the buffer code and make it more compatible

Mimic the old xmlBuffer strcture in xmlBuf to avaoid catastrophic
failures in case of old code directly reading ctxt->input->buf->buffer

Check on all buffer entry points if an error previously occured on
the buffer, and fail the operation if this is the case, the buffer
becomes immutable and unreadable.
1 file changed
tree: a41c7f5081efaae00192d7419f766e9954a5543f
  1. bakefile/
  2. doc/
  3. example/
  4. include/
  5. macos/
  6. optim/
  7. python/
  8. result/
  9. test/
  10. vms/
  11. VxWorks/
  12. win32/
  13. xstc/
  14. .cvsignore
  15. .gitignore
  16. acinclude.m4
  17. AUTHORS
  18. autogen.sh
  19. buf.c
  20. buf.h
  21. build_glob.py
  22. c14n.c
  23. catalog.c
  24. ChangeLog
  25. check-relaxng-test-suite.py
  26. check-relaxng-test-suite2.py
  27. check-xinclude-test-suite.py
  28. check-xml-test-suite.py
  29. check-xsddata-test-suite.py
  30. chvalid.c
  31. chvalid.def
  32. configure.in
  33. Copyright
  34. dbgen.pl
  35. dbgenattr.pl
  36. debugXML.c
  37. dict.c
  38. DOCBparser.c
  39. elfgcchack.h
  40. enc.h
  41. encoding.c
  42. entities.c
  43. error.c
  44. genChRanges.py
  45. gentest.py
  46. genUnicode.py
  47. global.data
  48. globals.c
  49. HACKING
  50. hash.c
  51. HTMLparser.c
  52. HTMLtree.c
  53. INSTALL.libxml2
  54. legacy.c
  55. libxml-2.0-uninstalled.pc.in
  56. libxml-2.0.pc.in
  57. libxml.3
  58. libxml.h
  59. libxml.m4
  60. libxml.spec.in
  61. libxml2.doap
  62. libxml2.syms
  63. list.c
  64. MAINTAINERS
  65. Makefile.am
  66. Makefile.tests
  67. Makefile.win
  68. nanoftp.c
  69. nanohttp.c
  70. NEWS
  71. parser.c
  72. parserInternals.c
  73. pattern.c
  74. README
  75. README.cvs-commits
  76. README.tests
  77. regressions.py
  78. regressions.xml
  79. relaxng.c
  80. rngparser.c
  81. runsuite.c
  82. runtest.c
  83. runxmlconf.c
  84. save.h
  85. SAX.c
  86. SAX2.c
  87. schematron.c
  88. testapi.c
  89. testAutomata.c
  90. testC14N.c
  91. testchar.c
  92. testdict.c
  93. testdso.c
  94. testHTML.c
  95. testModule.c
  96. testOOM.c
  97. testOOMlib.c
  98. testOOMlib.h
  99. testReader.c
  100. testrecurse.c
  101. testRegexp.c
  102. testRelax.c
  103. testSAX.c
  104. testSchemas.c
  105. testThreads.c
  106. testThreadsWin32.c
  107. testURI.c
  108. testXPath.c
  109. threads.c
  110. TODO
  111. TODO_SCHEMAS
  112. tree.c
  113. trio.c
  114. trio.h
  115. triodef.h
  116. trionan.c
  117. trionan.h
  118. triop.h
  119. triostr.c
  120. triostr.h
  121. uri.c
  122. valid.c
  123. xinclude.c
  124. xlink.c
  125. xml2-config.1
  126. xml2-config.in
  127. xml2Conf.sh.in
  128. xmlcatalog.c
  129. xmlIO.c
  130. xmllint.c
  131. xmlmemory.c
  132. xmlmodule.c
  133. xmlreader.c
  134. xmlregexp.c
  135. xmlsave.c
  136. xmlschemas.c
  137. xmlschemastypes.c
  138. xmlstring.c
  139. xmlunicode.c
  140. xmlwriter.c
  141. xpath.c
  142. xpointer.c
  143. xzlib.c
  144. xzlib.h