diff options
Diffstat (limited to 'rdd.c')
| -rw-r--r-- | rdd.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/rdd.c b/rdd.c index e6eb523..4a12032 100644 --- a/rdd.c +++ b/rdd.c @@ -32,6 +32,9 @@ usage: if (argc > optind) goto usage; + if (isatty(1)) + fail(5, "cowardly not dumping to tty\n"); + if ((fd = open(src, O_RDONLY)) < 0) fail(2, "failed to open random source\n"); |