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Issue #656 - protect against NULL node set in loop

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This commit is contained in:
Geoff McLane 2017-12-16 20:54:29 +01:00
parent f0438bd4b8
commit a0414d65a6
1 changed files with 4 additions and 2 deletions
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4
src/clean.c
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@ -2212,7 +2212,9 @@ Bool TY_(TidyMetaCharset)(TidyDocImpl* doc)
tidyBufAppend(&charsetString, (char*)enc, TY_(tmbstrlen)(enc)); tidyBufAppend(&charsetString, (char*)enc, TY_(tmbstrlen)(enc));
tidyBufAppend(&charsetString, "\0", 1); /* zero terminate the buffer */ tidyBufAppend(&charsetString, "\0", 1); /* zero terminate the buffer */
/* process the children of the head */ /* process the children of the head */
for (currentNode = head->content; currentNode; currentNode = currentNode->next) /* Issue #656 - guard against 'currentNode' being set NULL in loop */
for (currentNode = head->content; currentNode;
currentNode = (currentNode ? currentNode->next : NULL))
{ {
if (!nodeIsMETA(currentNode)) if (!nodeIsMETA(currentNode))
continue; /* not a meta node */ continue; /* not a meta node */