diff options
Diffstat (limited to 'lib/isc/md5.c')
| -rw-r--r-- | lib/isc/md5.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/isc/md5.c b/lib/isc/md5.c index 579d61c20b2a2..55d56195f48e4 100644 --- a/lib/isc/md5.c +++ b/lib/isc/md5.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2004, 2005, 2007, 2009, 2014 Internet Systems Consortium, Inc. ("ISC") + * Copyright (C) 2004, 2005, 2007, 2009, 2014, 2015 Internet Systems Consortium, Inc. ("ISC") * Copyright (C) 2000, 2001 Internet Software Consortium. * * Permission to use, copy, modify, and/or distribute this software for any @@ -57,6 +57,8 @@ isc_md5_invalidate(isc_md5_t *ctx) { void isc_md5_update(isc_md5_t *ctx, const unsigned char *buf, unsigned int len) { + if (len == 0U) + return; RUNTIME_CHECK(EVP_DigestUpdate(ctx, (const void *) buf, (size_t) len) == 1); |