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| author | Michael McLoughlin <mmcloughlin@gmail.com> | 2017-07-15 18:21:26 -0600 |
|---|---|---|
| committer | Adam Langley <agl@golang.org> | 2017-08-09 19:29:14 +0000 |
| commit | d401c427b29f48d5cbc5092e62c20aa8524ce356 (patch) | |
| tree | 69f35623bf5c665d687eba295db7bc619a5f9f31 /src/database/sql/sql_test.go | |
| parent | 60b9ae4cf3a0428668748a53f278a80d41fbfc38 (diff) | |
| download | go-d401c427b29f48d5cbc5092e62c20aa8524ce356.tar.xz | |
crypto/rand: batch large calls to linux getrandom
The linux getrandom system call returns at most 33554431 = 2^25-1 bytes per
call. The existing behavior for larger reads is to report a failure, because
there appears to have been an unexpected short read. In this case the system
falls back to reading from "/dev/urandom".
This change performs reads of 2^25 bytes or more with multiple calls to
getrandom.
Fixes #20877
Change-Id: I618855bdedafd86cd11219fe453af1d6fa2c88a7
Reviewed-on: https://go-review.googlesource.com/49170
Reviewed-by: Adam Langley <agl@golang.org>
Run-TryBot: Adam Langley <agl@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Diffstat (limited to 'src/database/sql/sql_test.go')
0 files changed, 0 insertions, 0 deletions