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20865: Don't use getentropy() on OSX Sierra.
Tor 0.2.9 has a broader range of fixes and workarounds here, but for 0.2.8, we're just going to maintain the existing behavior. (The alternative would be to backport both1eba088054
and16fcbd21c9
, but the latter is kind of a subtle kludge in the configure.ac script, and I'm not a fan of backporting that kind of thing.)
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o Minor bugfixes (portability):
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- Avoid compilation errors when building on OSX Sierra. Sierra began
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to support the getentropy() API, but created a few problems in
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doing so. Tor 0.2.9 has a more thorough set of workarounds; in
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0.2.8, we are just using the /dev/urandom interface. Fixes
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bug 20865. Bugfix on 0.2.8.1-alpha.
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@ -88,6 +88,15 @@
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#include "keccak-tiny/keccak-tiny.h"
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#ifdef __APPLE__
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/* Apple messed up their getentropy definitions in Sierra. It's not insecure
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* or anything (as far as I know) but it makes compatible builds hard. 0.2.9
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* contains the necessary tricks to do it right: in 0.2.8, we're just using
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* this blunt instrument.
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*/
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#undef HAVE_GETENTROPY
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#endif
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#ifdef ANDROID
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/* Android's OpenSSL seems to have removed all of its Engine support. */
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#define DISABLE_ENGINES
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