23 lines
1.1 KiB
Diff
23 lines
1.1 KiB
Diff
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diff --git a/Python/random.c b/Python/random.c
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index 2f83b5d..4cae217 100644
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--- a/Python/random.c
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+++ b/Python/random.c
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@@ -97,8 +97,15 @@ win32_urandom(unsigned char *buffer, Py_ssize_t size, int raise)
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}
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/* Issue #25003: Don't use getentropy() on Solaris (available since
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- * Solaris 11.3), it is blocking whereas os.urandom() should not block. */
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-#elif defined(HAVE_GETENTROPY) && !defined(sun)
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+ Solaris 11.3), it is blocking whereas os.urandom() should not block.
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+
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+ Issue #29188: Don't use getentropy() on Linux since the glibc 2.24
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+ implements it with the getrandom() syscall which can fail with ENOSYS,
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+ and this error is not supported in py_getentropy() and getrandom() is called
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+ with flags=0 which blocks until system urandom is initialized, which is not
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+ the desired behaviour to seed the Python hash secret nor for os.urandom():
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+ see the PEP 524 which was only implemented in Python 3.6. */
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+#elif defined(HAVE_GETENTROPY) && !defined(sun) && !defined(linux)
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#define PY_GETENTROPY 1
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/* Fill buffer with size pseudo-random bytes generated by getentropy().
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