diff options
Diffstat (limited to 'cipher/rndlinux.c')
| -rw-r--r-- | cipher/rndlinux.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/cipher/rndlinux.c b/cipher/rndlinux.c index 78fee1567..6f80a8def 100644 --- a/cipher/rndlinux.c +++ b/cipher/rndlinux.c @@ -89,6 +89,10 @@ open_device( const char *name, int minor ) } +/**************** + * Note: Using a level of 0 should never block and better add nothing + * to the pool. This is easy to accomplish with /dev/urandom. + */ static int gather_random( void (*add)(const void*, size_t, int), int requester, size_t length, int level ) @@ -106,6 +110,8 @@ gather_random( void (*add)(const void*, size_t, int), int requester, fd = fd_random; } else { + /* this will also be used for elve 0 but by using /dev/urandom + * we can be sure that oit will never block. */ if( fd_urandom == -1 ) fd_urandom = open_device( NAME_OF_DEV_URANDOM, 9 ); fd = fd_urandom; |