[issue27278] py_getrandom() uses an int for syscall() result

[STINNER Victor]

New submission from STINNER Victor:

syscall() result type is long.

Moreover, long type might can smaller than the size type, so we may need to add:

n = Py_MIN(size, LONG_MAX);

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messages: 267969
nosy: haypo
priority: normal
severity: normal
status: open
title: py_getrandom() uses an int for syscall() result
versions: Python 3.5, Python 3.6

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27278>
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