Commitb875ca0

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Add recursion depth protection to LIKE matching.

Since MatchText() recurses, it could in principle be driven to stackoverflow, although quite a long pattern would be needed.

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Original file line number	Diff line number	Diff line change
`@@ -82,6 +82,9 @@ MatchText(char t, int tlen, char p, int plen)`
`82`	`82`	`if (plen==1&&*p=='%')`
`83`	`83`	`returnLIKE_TRUE;`
`84`	`84`
	`85`	`+/* Since this function recurses, it could be driven to stack overflow */`
	`86`	`+check_stack_depth();`
	`87`	`+`
`85`	`88`	`/*`
`86`	`89`	`* In this loop, we advance by char when matching wildcards (and thus on`
`87`	`90`	`* recursive entry to this function we are properly char-synced). On other`

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