kc3-lang/libxml2/testparser.c

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• Hash : 89d19534
  Author :
  Date : 2023-10-28T03:04:59
  

  encoding: Fix decoding of large chunks
  
  After 95e81a36, we must support XML_ENC_ERR_SPACE when using built-in
  encoding handlers.
  
  Should fix #610.
  

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• testparser.c

• /*
   * testparser.c: Additional parser tests
   *
   * See Copyright for the status of this software.
   */
  
  #include <libxml/parser.h>
  
  #ifdef LIBXML_PUSH_ENABLED
  static int
  testHugePush(void) {
      xmlParserCtxtPtr ctxt;
      int err, i;
  
      ctxt = xmlCreatePushParserCtxt(NULL, NULL, NULL, 0, NULL);
  
      /*
       * Push parse a document larger than XML_MAX_LOOKUP_LIMIT
       * (10,000,000 bytes). This mainly tests whether shrinking the
       * buffer works when push parsing.
       */
      xmlParseChunk(ctxt, "<doc>", 5, 0);
      for (i = 0; i < 1000000; i++)
          xmlParseChunk(ctxt, "<elem>text</elem>", 17, 0);
      xmlParseChunk(ctxt, "</doc>", 6, 1);
  
      err = ctxt->wellFormed ? 0 : 1;
      xmlFreeDoc(ctxt->myDoc);
      xmlFreeParserCtxt(ctxt);
  
      return err;
  }
  
  static int
  testHugeEncodedChunk(void) {
      xmlBufferPtr buf;
      xmlChar *chunk;
      xmlParserCtxtPtr ctxt;
      int err, i;
  
      /*
       * Test the push parser with a built-in encoding handler like ISO-8859-1
       * and a chunk larger than the initial decoded buffer (currently 4 KB).
       */
      buf = xmlBufferCreate();
      xmlBufferCat(buf,
              BAD_CAST "<?xml version='1.0' encoding='ISO-8859-1'?>\n");
      xmlBufferCat(buf, BAD_CAST "<doc><!-- ");
      for (i = 0; i < 2000; i++)
          xmlBufferCat(buf, BAD_CAST "0123456789");
      xmlBufferCat(buf, BAD_CAST " --></doc>");
      chunk = xmlBufferDetach(buf);
      xmlBufferFree(buf);
  
      ctxt = xmlCreatePushParserCtxt(NULL, NULL, NULL, 0, NULL);
  
      xmlParseChunk(ctxt, (char *) chunk, xmlStrlen(chunk), 0);
      xmlParseChunk(ctxt, NULL, 0, 1);
  
      err = ctxt->wellFormed ? 0 : 1;
      xmlFreeDoc(ctxt->myDoc);
      xmlFreeParserCtxt(ctxt);
      xmlFree(chunk);
  
      return err;
  }
  #endif
  
  int
  main(void) {
      int err = 0;
  
  #ifdef LIBXML_PUSH_ENABLED
      err |= testHugePush();
      err |= testHugeEncodedChunk();
  #endif
  
      return err;
  }
  
  

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