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Issue #22181: Fix dev_urandom_noraise(), try calling py_getrandom() before

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opening /dev/urandom.
This commit is contained in:
Victor Stinner
2015-03-19 23:24:45 +01:00
parent 66aab0c4b5
commit c7cd12da60
1 changed files with 4 additions and 4 deletions
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8
Python/random.c
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@@ -166,10 +166,6 @@ dev_urandom_noraise(unsigned char *buffer, Py_ssize_t size)
assert (0 < size);
fd = _Py_open_noraise("/dev/urandom", O_RDONLY);
if (fd < 0)
Py_FatalError("Failed to open /dev/urandom");
#ifdef HAVE_GETRANDOM_SYSCALL
if (py_getrandom(buffer, size, 0) == 1)
return;
@@ -177,6 +173,10 @@ dev_urandom_noraise(unsigned char *buffer, Py_ssize_t size)
* on reading /dev/urandom */
#endif
fd = _Py_open_noraise("/dev/urandom", O_RDONLY);
if (fd < 0)
Py_FatalError("Failed to open /dev/urandom");
while (0 < size)
{
do {