Add rnds(1)

Low-quality random seed attempt.

1 files changed, 11 insertions, 0 deletions

diff --git a/bin/rnds b/bin/rnds
new file mode 100755
index 00000000..650f15bf
--- /dev/null
+++ b/bin/rnds
@@ -0,0 +1,11 @@
+#!/bin/sh
+# Try to get a low-quality random seed from a random device if possible
+[ "$#" -le 1 ] || exit 2
+for dev in /dev/arandom /dev/urandom /dev/random '' ; do
+    [ -e "$dev" ] && break
+done
+[ -n "$dev" ] || exit 1
+count=${1:-32}
+dd if="$dev" bs=1 count="$count" 2>/dev/null |
+cksum |
+cut -d' ' -f1