| Don't use getentropy() on Linux |
| |
| Issue #29188: Support glibc 2.24 on Linux: don't use getentropy() function but |
| read from /dev/urandom to get random bytes, for example in os.urandom(). On |
| Linux, getentropy() is implemented which getrandom() is blocking mode, whereas |
| os.urandom() should not block. [#29188] |
| author Victor Stinner <victor.stinner@gmail.com> |
| date Mon, 09 Jan 2017 11:10:41 +0100 (22 months ago) |
| |
| Note: Patch is modfied from upstream to apply to |
| python 2.7.10. |
| |
| diff --git a/Python/random.c b/Python/random.c |
| index d94f89a..c33fe07 100644 |
| --- a/Python/random.c |
| +++ b/Python/random.c |
| @@ -333,7 +333,7 @@ _PyOS_URandom(void *buffer, Py_ssize_t size) |
| |
| #ifdef MS_WINDOWS |
| return win32_urandom((unsigned char *)buffer, size, 1); |
| -#elif HAVE_GETENTROPY |
| +#elif HAVE_GETENTROPY && !defined(sun) && !defined(linux) |
| return py_getentropy(buffer, size, 0); |
| #else |
| # ifdef __VMS |
