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* util: Fix SHA1 implementation on big endianMatt Turner2017-11-251-1/+2
| | | | | | | | | | | The code defines a macro blk0(i) based on the preprocessor condition BYTE_ORDER == LITTLE_ENDIAN. If true, blk0(i) is defined as a byte swap operation. Unfortunately, if the preprocessor macros used in the test are no defined, then the comparison becomes 0 == 0 and it evaluates as true. Fixes: d1efa09d342b ("util: import sha1 implementation from OpenBSD") Reviewed-by: Emil Velikov <[email protected]>
* util: import sha1 implementation from OpenBSD17.0-branchpointEmil Velikov2017-01-181-0/+173
At the moment we support 5+ different implementations each with varying amount of bugs - from thread safely problems [1], to outright broken implementation(s) [2] In order to accommodate these we have 150+ lines of configure script and extra two configure toggles. Whist an actual implementation being ~200loc and our current compat wrapping ~250. Let's not forget that different people use different code paths, thus effectively makes it harder to test and debug since the default implementation is automatically detected. To minimise all these lovely experiences, import the "100% Public Domain" OpenBSD sha1 implementation. Clearly document any changes needed to get building correctly, since many/most of those can be upstreamed making future syncs easier. As an added bonus this will avoid all the 'fun' experiences trying to integrate it with the Android and SCons builds. v2: Manually expand __BEGIN_DECLS/__END_DECLS and document (Tapani). Furthermore it seems that some games (or surrounding runtime) static link against OpenSSL resulting in conflicts. For more information see the discussion thread [3] Bugzilla [1]: https://bugs.freedesktop.org/show_bug.cgi?id=94904 Bugzilla [2]: https://bugs.freedesktop.org/show_bug.cgi?id=97967 [3] https://lists.freedesktop.org/archives/mesa-dev/2017-January/140748.html Cc: Mark Janes <[email protected]> Cc: Vinson Lee <[email protected]> Cc: Tapani Pälli <[email protected]> Cc: Jonathan Gray <[email protected]> Tested-by: Jonathan Gray <[email protected]> Signed-off-by: Emil Velikov <[email protected]> Acked-by: Tapani Pälli <[email protected]> (v1) Acked-by: Jason Ekstrand <[email protected]> (v1)