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-rw-r--r--security/nss/cmd/lib/ffs.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/security/nss/cmd/lib/ffs.c b/security/nss/cmd/lib/ffs.c
new file mode 100644
index 0000000000..d1cbf67e28
--- /dev/null
+++ b/security/nss/cmd/lib/ffs.c
@@ -0,0 +1,21 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#if !defined(XP_UNIX) && !defined(XP_OS2)
+
+int
+ffs(unsigned int i)
+{
+ int rv = 1;
+
+ if (!i)
+ return 0;
+
+ while (!(i & 1)) {
+ i >>= 1;
+ ++rv;
+ }
+
+ return rv;
+}
+#endif