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xmlparse.cpp skip memmove if pool->start (src) is 0

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Jacek Jendrzej
2020-01-03 15:14:53 +01:00
parent 1d76394de6
commit 445bb5e600
1 changed files with 5 additions and 3 deletions
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8
lib/xmltree/xmlparse.cpp
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@@ -854,7 +854,7 @@ enum XML_Error XML_Parser::doContent(int startTagLevel, const ENCODING *enc, con
if (result) return result;
};
// fall through */
// fall through
case XML_TOK_EMPTY_ELEMENT_NO_ATTS:
if (startElementHandler || endElementHandler)
@@ -2691,7 +2691,8 @@ static int poolGrow(STRING_POOL *pool)
pool->blocks=pool->freeBlocks;
pool->freeBlocks=tem;
memmove(pool->blocks->s, pool->start, (pool->end-pool->start)*sizeof(XML_Char));
if (pool->start)
memmove(pool->blocks->s, pool->start, (pool->end-pool->start)*sizeof(XML_Char));
pool->ptr=pool->blocks->s+(pool->ptr-pool->start);
pool->start=pool->blocks->s;
@@ -2733,7 +2734,8 @@ static int poolGrow(STRING_POOL *pool)
pool->blocks=tem;
memmove(tem->s, pool->start, (pool->ptr-pool->start)*sizeof(XML_Char)); //FIXME: pool->start seems to be a null pointer in some constellations, eg. with disabled pugixml, memmove don't like NULL-pointer for parameter 2
if (pool->start)
memmove(tem->s, pool->start, (pool->ptr-pool->start)*sizeof(XML_Char));
pool->ptr=tem->s+(pool->ptr-pool->start);
pool->start=tem->s;