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Fixed self-invented a segfault in xmlXPathCtxtCompile(), when the

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* xpath.c: Fixed self-invented a segfault in xmlXPathCtxtCompile(),
  when the expression was not valid and @comp was NULL and I
  tried to do the d-o-s rewrite.
This commit is contained in:
Kasimier T. Buchcik
2006-06-06 15:27:46 +00:00
parent 69839ba197
commit 7cb3fa9d51
2 changed files with 14 additions and 7 deletions
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15
xpath.c
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@@ -14137,12 +14137,12 @@ xmlXPathCtxtCompile(xmlXPathContextPtr ctxt, const xmlChar *str) {
#ifdef DEBUG_EVAL_COUNTS
comp->string = xmlStrdup(str);
comp->nb = 0;
#endif
}
if ((comp->nbStep > 2) &&
(xmlXPathCanRewriteDosExpression(comp->expr) == 1))
{
xmlXPathRewriteDOSExpression(comp, &comp->steps[comp->last]);
#endif
if ((comp->nbStep > 2) &&
(xmlXPathCanRewriteDosExpression(comp->expr) == 1))
{
xmlXPathRewriteDOSExpression(comp, &comp->steps[comp->last]);
}
}
return(comp);
}
@@ -14263,7 +14263,8 @@ xmlXPathEvalExpr(xmlXPathParserContextPtr ctxt) {
#endif
{
xmlXPathCompileExpr(ctxt, 1);
if ((ctxt->comp->nbStep > 2) &&
if ((ctxt->comp != NULL) &&
(ctxt->comp->nbStep > 2) &&
(xmlXPathCanRewriteDosExpression(ctxt->comp->expr) == 1))
{
xmlXPathRewriteDOSExpression(ctxt->comp,