1  /*
       2   * testparser.c: Additional parser tests
       3   *
       4   * See Copyright for the status of this software.
       5   */
       6  
       7  #include <libxml/parser.h>
       8  
       9  #ifdef LIBXML_PUSH_ENABLED
      10  static int
      11  testHugePush(void) {
      12      xmlParserCtxtPtr ctxt;
      13      int err, i;
      14  
      15      ctxt = xmlCreatePushParserCtxt(NULL, NULL, NULL, 0, NULL);
      16  
      17      /*
      18       * Push parse a document larger than XML_MAX_LOOKUP_LIMIT
      19       * (10,000,000 bytes). This mainly tests whether shrinking the
      20       * buffer works when push parsing.
      21       */
      22      xmlParseChunk(ctxt, "<doc>", 5, 0);
      23      for (i = 0; i < 1000000; i++)
      24          xmlParseChunk(ctxt, "<elem>text</elem>", 17, 0);
      25      xmlParseChunk(ctxt, "</doc>", 6, 1);
      26  
      27      err = ctxt->wellFormed ? 0 : 1;
      28      xmlFreeDoc(ctxt->myDoc);
      29      xmlFreeParserCtxt(ctxt);
      30  
      31      return err;
      32  }
      33  
      34  static int
      35  testHugeEncodedChunk(void) {
      36      xmlBufferPtr buf;
      37      xmlChar *chunk;
      38      xmlParserCtxtPtr ctxt;
      39      int err, i;
      40  
      41      /*
      42       * Test the push parser with a built-in encoding handler like ISO-8859-1
      43       * and a chunk larger than the initial decoded buffer (currently 4 KB).
      44       */
      45      buf = xmlBufferCreate();
      46      xmlBufferCat(buf,
      47              BAD_CAST "<?xml version='1.0' encoding='ISO-8859-1'?>\n");
      48      xmlBufferCat(buf, BAD_CAST "<doc><!-- ");
      49      for (i = 0; i < 2000; i++)
      50          xmlBufferCat(buf, BAD_CAST "0123456789");
      51      xmlBufferCat(buf, BAD_CAST " --></doc>");
      52      chunk = xmlBufferDetach(buf);
      53      xmlBufferFree(buf);
      54  
      55      ctxt = xmlCreatePushParserCtxt(NULL, NULL, NULL, 0, NULL);
      56  
      57      xmlParseChunk(ctxt, (char *) chunk, xmlStrlen(chunk), 0);
      58      xmlParseChunk(ctxt, NULL, 0, 1);
      59  
      60      err = ctxt->wellFormed ? 0 : 1;
      61      xmlFreeDoc(ctxt->myDoc);
      62      xmlFreeParserCtxt(ctxt);
      63      xmlFree(chunk);
      64  
      65      return err;
      66  }
      67  #endif
      68  
      69  int
      70  main(void) {
      71      int err = 0;
      72  
      73  #ifdef LIBXML_PUSH_ENABLED
      74      err |= testHugePush();
      75      err |= testHugeEncodedChunk();
      76  #endif
      77  
      78      return err;
      79  }
      80