Doug Freed added the comment:
It already checks for gethostbyname_r, but the comments in socketmodule.c
mention that configure seems to get it wrong. Those comments are probably old,
though, so perhaps that can be revisited as well.
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Python
New submission from Doug Freed:
On at least Linux (and probably most other UNIXes, except OS X), the C
functions getservbyname(), getservbyport(), and getprotobyname() are not
threadsafe. CPython's wrappers around these functions in the socket module do
nothing to cover up this fact. S
