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patch 9.0.2030: no max callback recursion limit

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Problem:  no max callback recursion limit
Solution: bail out, if max call recursion for callback functions
          has been reached.

This checks the 'maxfuncdepth' setting and throws E169 when a callback
function recursively calls itself.

closes: #13337
closes: #13339

Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Christian Brabandt
2023-10-15 09:56:16 +02:00
parent 1ace49fb98
commit 47510f3d65
4 changed files with 17 additions and 1 deletions
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7
src/userfunc.c
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@@ -3583,6 +3583,13 @@ call_callback(
if (callback->cb_name == NULL || *callback->cb_name == NUL)
return FAIL;
if (callback_depth > p_mfd)
{
emsg(_(e_command_too_recursive));
return FAIL;
}
CLEAR_FIELD(funcexe);
funcexe.fe_evaluate = TRUE;
funcexe.fe_partial = callback->cb_partial;