[issue22542] Use arc4random under OpenBSD for os.urandom() if /dev/urandom is not present

[STINNER Victor]

STINNER Victor added the comment:

> Hopefully this could then be used as a template for getrandom() when implemented on Linux.

Sorry, what is getrandom()?

Linux 3.17 has a new getrandom() syscall, but the C API is not defined yet (see the issue #22181). OpenBSD 5.6 will have a getentropy() syscall and a gentropy() function in the C libray.

If if you are discussing about an hypothetical function in the C library, it's out of the scope if this bug tracker. Python don't call directly syscalls (ok, there is only one place in _posixsubprocess to avoid a race condition).

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<http://bugs.python.org/issue22542>
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