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

To: tech-userlevel%netbsd.org@localhost
Subject: Re: stack overflow in getaddrinfo(3) with a small-sized stack in pthreads
From: Anthony Mallet <anthony.mallet%laas.fr@localhost>
Date: Mon, 29 Nov 2021 12:25:24 +0100

On Monday 29 Nov 2021, at 00:05, Anthony Mallet wrote:
> 64k is not small, so I still believe it should be on the heap.

In addition, I just noticed that res_nquery(3) in
libc/resolv/res_query.c uses a similar buffer but of size
min(PACKETSZ, 1024). PACKETSZ seems to be 512 bytes only.

So it seems that the two functions are not consistent wrt. the buffer
size. Do you think I should PR this?

References:
- stack overflow in getaddrinfo(3) with a small-sized stack in pthreads
  - From: Anthony Mallet
- Re: stack overflow in getaddrinfo(3) with a small-sized stack in pthreads
  - From: Mouse
- Re: stack overflow in getaddrinfo(3) with a small-sized stack in pthreads
  - From: Anthony Mallet

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