Add a comment explaining why SecRandomCopyBytes is not used on MacOS#59879
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bors merged 1 commit intorust-lang:masterfrom Apr 16, 2019
ebarnard:patch-1
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Add a comment explaining why SecRandomCopyBytes is not used on MacOS#59879bors merged 1 commit intorust-lang:masterfrom ebarnard:patch-1
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r? @dtolnay (rust_highfive has picked a reviewer for you, use r? to override) |
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Are we already linking libstd to Security.framework or are we going to need to handle that too? |
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Good catch, no. We now are and this time I've tested locally. |
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SGTM but just to make sure our version support's consistent. |
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@bors: r+ |
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📌 Commit 22f2afe has been approved by |
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Use SecRandomCopyBytes instead of /dev/urandom on MacOS SecRandomCopyBytes is [available since MacOS 10.7](https://developer.apple.com/documentation/security/1399291-secrandomcopybytes?language=objc) which is the minimum supported version and which was suggested in rust-lang#58901 (comment) is the earliest version currently in use. This matches the behaviour of other platforms which have a random number generator syscall available.
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Use SecRandomCopyBytes instead of /dev/urandom on MacOS SecRandomCopyBytes is [available since MacOS 10.7](https://developer.apple.com/documentation/security/1399291-secrandomcopybytes?language=objc) which is the minimum supported version and which was suggested in rust-lang#58901 (comment) is the earliest version currently in use. This matches the behaviour of other platforms which have a random number generator syscall available.
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Rollup of 18 pull requests Successful merges: - rust-lang#59612 (Use normal newtype_index macro for MIR dataflows) - rust-lang#59675 (Stabilize the `alloc` crate.) - rust-lang#59708 (Mark variables captured by reference as mutable correctly) - rust-lang#59735 (remove lookup_char_pos_adj) - rust-lang#59747 (Copy book.toml unstable book generator) - rust-lang#59796 (Retire `IsNotConst` naming) - rust-lang#59804 (Clean up jobserver integration) - rust-lang#59818 (Eliminate `FnBox` usages from libstd.) - rust-lang#59830 (Fix links on keyword docs.) - rust-lang#59835 (Re-export NonZero signed variant in std) - rust-lang#59852 (std: Add `{read,write}_vectored` for more types) - rust-lang#59855 (Fix attributes position in type declaration) - rust-lang#59858 (Make duplicate matcher bindings a hard error) - rust-lang#59879 (Use SecRandomCopyBytes instead of /dev/urandom on MacOS) - rust-lang#59899 (In `-Zprint-type-size` output, sort enum variants by size.) - rust-lang#59912 (MaybeUninit: remove deprecated functions) - rust-lang#59925 (Fix paste error in split_ascii_whitespace docs.) - rust-lang#59930 (Exclude some copies of old book editions from search engines) Failed merges: r? @ghost
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Rollup of 18 pull requests Successful merges: - #59612 (Use normal newtype_index macro for MIR dataflows) - #59675 (Stabilize the `alloc` crate.) - #59708 (Mark variables captured by reference as mutable correctly) - #59735 (remove lookup_char_pos_adj) - #59747 (Copy book.toml unstable book generator) - #59796 (Retire `IsNotConst` naming) - #59804 (Clean up jobserver integration) - #59818 (Eliminate `FnBox` usages from libstd.) - #59830 (Fix links on keyword docs.) - #59835 (Re-export NonZero signed variant in std) - #59852 (std: Add `{read,write}_vectored` for more types) - #59855 (Fix attributes position in type declaration) - #59858 (Make duplicate matcher bindings a hard error) - #59879 (Use SecRandomCopyBytes instead of /dev/urandom on MacOS) - #59899 (In `-Zprint-type-size` output, sort enum variants by size.) - #59912 (MaybeUninit: remove deprecated functions) - #59925 (Fix paste error in split_ascii_whitespace docs.) - #59930 (Exclude some copies of old book editions from search engines) Failed merges: r? @ghost
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Use SecRandomCopyBytes instead of /dev/urandom on MacOS SecRandomCopyBytes is [available since MacOS 10.7](https://developer.apple.com/documentation/security/1399291-secrandomcopybytes?language=objc) which is the minimum supported version and which was suggested in rust-lang#58901 (comment) is the earliest version currently in use. This matches the behaviour of other platforms which have a random number generator syscall available.
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@bors r- since a r0llup worked without it. |
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I'm now less sure about the value of this PR. At least on MacOS Security.framework also pulls in something which sets the I'm inclined to leave a comment to this effect in |
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@ebarnard sounds reasonable to me! |
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Done |
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@bors: r+ |
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📌 Commit f1da89a has been approved by |
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Add a comment explaining why SecRandomCopyBytes is not used on MacOS SecRandomCopyBytes is [available since MacOS 10.7](https://developer.apple.com/documentation/security/1399291-secrandomcopybytes?language=objc) which is the minimum supported version and which was suggested in #58901 (comment) is the earliest version currently in use. This matches the behaviour of other platforms which have a random number generator syscall available.
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☀️ Test successful - checks-travis, status-appveyor |
This was referenced May 2, 2019
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SecRandomCopyBytes is available since MacOS 10.7 which is the minimum supported version and which was suggested in #58901 (comment) is the earliest version currently in use.
This matches the behaviour of other platforms which have a random number generator syscall available.