msxml3: Fix illegal memory access.

This commit is contained in:
Piotr Caban 2010-06-27 15:21:28 +02:00 committed by Alexandre Julliard
parent 77f4c853f9
commit a42a0917cd
1 changed files with 6 additions and 3 deletions

View File

@ -1111,7 +1111,8 @@ static void libxmlEndElementNS(
end = (xmlChar*)This->pParserCtxt->input->cur;
if(*(end-1) != '>' || *(end-2) != '/')
while(*(end-2)!='<' && *(end-1)!='/') end--;
while(end-2>=This->pParserCtxt->input->base
&& *(end-2)!='<' && *(end-1)!='/') end--;
update_position(This, end);
@ -1268,7 +1269,8 @@ static void libxmlComment(void *ctx, const xmlChar *value)
HRESULT hr;
xmlChar *beg = (xmlChar*)This->pParserCtxt->input->cur;
while(memcmp(beg-4, "<!--", sizeof(char[4]))) beg--;
while(beg-4>=This->pParserCtxt->input->base
&& memcmp(beg-4, "<!--", sizeof(char[4]))) beg--;
update_position(This, beg);
if(!This->vbInterface && !This->saxreader->lexicalHandler) return;
@ -1345,7 +1347,8 @@ static void libxmlCDataBlock(void *ctx, const xmlChar *value, int len)
BSTR Chars;
BOOL lastEvent = FALSE, change;
while(memcmp(beg-9, "<![CDATA[", sizeof(char[9]))) beg--;
while(beg-9>=This->pParserCtxt->input->base
&& memcmp(beg-9, "<![CDATA[", sizeof(char[9]))) beg--;
update_position(This, beg);
if(This->vbInterface && This->saxreader->vblexicalHandler)