diff options
Diffstat (limited to 'pkg/rand')
| -rw-r--r-- | pkg/rand/rand_linux.go | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/pkg/rand/rand_linux.go b/pkg/rand/rand_linux.go index 0bdad5fad..1aec96e2b 100644 --- a/pkg/rand/rand_linux.go +++ b/pkg/rand/rand_linux.go @@ -45,12 +45,18 @@ func (r *reader) Read(p []byte) (int, error) { return rand.Read(p) } +// mu protects the global Reader below. +var mu sync.Mutex + // Reader is the default reader. var Reader io.Reader = &reader{} // Read reads from the default reader. func Read(b []byte) (int, error) { - return io.ReadFull(Reader, b) + mu.Lock() + n, err := io.ReadFull(Reader, b) + mu.Unlock() + return n, err } // Init can be called to make sure /dev/urandom is pre-opened on kernels that |