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authorVito Caputo <vcaputo@pengaru.com>2023-08-14 05:20:03 -0700
committerVito Caputo <vcaputo@pengaru.com>2023-08-14 05:20:03 -0700
commit9db90b0f8cdf41d5f8241babe50bed1578e8cfa1 (patch)
treeb348d4cecb30456cabcee895960551ea78cd3ca0 /src/modules/submit
parent210580bb0bbd14c02c2ba929012399ec32885de1 (diff)
til_str: handle overflows in til_str_appendf()
In the wholesale transition to til_module_setup_full() there's been a lot more problematic randomized setups either extremely deep or plain infinite. Due to the primitive escaping mechanism performed by til_settings_as_arg(), where escape patterns grow exponentially with depth, it's quite realistic (and observed) for these problematic setups to exceed SIZE_MAX. So I'm putting some guard rails in to cap a given til_str_t to SIZE_MAX. It might make more sense to move the limit well below SIZE_MAX, but this should at least prevent overflows.
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