Test case (both template and the input):
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<!-- xsl:output method="text" indent="no"/ -->
<xsl:template match="*">
<xsl:value-of select="generate-id()=generate-id(key('none', $nonexistent))"/>
</xsl:template>
</xsl:stylesheet>
Before:
runtime error: file bug-generateid-deref.xsl line 5 element value-of
Variable 'nonexistent' has not been declared.
XPath error : Stack usage error
XPath error : Stack usage error
Segmentation fault (core dumped)
After:
runtime error: file bug-generateid-deref.xsl line 5 element value-of
Variable 'nonexistent' has not been declared.
XPath error : Stack usage error
XPath error : Stack usage error
Segmentation fault (core dumped)
Now, however, the segfault occurs at another place (attempt to fix that
as well will follow.
Signed-off-by: Jan Pokorný <[email protected]>
---
libxslt/functions.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libxslt/functions.c b/libxslt/functions.c
index dc61994..38345c0 100644
--- a/libxslt/functions.c
+++ b/libxslt/functions.c
@@ -680,6 +680,8 @@ xsltGenerateIdFunction(xmlXPathParserContextPtr ctxt, int
nargs){
return;
}
obj = valuePop(ctxt);
+ if (obj == NULL)
+ return;
nodelist = obj->nodesetval;
if ((nodelist == NULL) || (nodelist->nodeNr <= 0)) {
xmlXPathFreeObject(obj);
--
1.8.1.4
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