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Re: stack overflow in getaddrinfo(3) with a small-sized stack in pthreads

Steffen Nurpmeso wrote in
 |Joerg Sonnenberger wrote in
 | <>:
 ||On Mon, Nov 29, 2021 at 08:38:35PM +0700, Robert Elz wrote:
 ||> DNS queries (via UDP) are limited to max 512, as that is what the
 ||> protocol always required, so can be handled by everything (or should \
 ||> be).
 ||Strictly speaking, it is the minimum MTU every IPv4 implementation is
 ||supposed to allow. IPv6 bumped it to 1280.
 |RFC 1035 says
 |  2.3.4. Size limits
 |  ...
 |  UDP messages    512 octets or less
 |If no EDNS is in use the answer should be pretty small also.
 |Also see RFC 2671, but i have forgotten about all that.

Ah ya the OPT RR also mentions MTU.  Sorry.

|Der Kragenbaer,                The moon bear,
|der holt sich munter           he cheerfully and one by one
|einen nach dem anderen runter  wa.ks himself off
|(By Robert Gernhardt)

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