9971 Make getrandom(2) a public interface

@@ -8,11 +8,11 @@
  * source.  A copy of the CDDL is also available via the Internet at
  * http://www.illumos.org/license/CDDL.
  */
 
 /*
- * Copyright (c) 2015, Joyent, Inc.
+ * Copyright (c) 2018, Joyent, Inc.
  */
 
 /*
  * getentropy(3C) is an OpenBSD compatible wrapper around getrandom(2).
  */

@@ -21,11 +21,11 @@
 #include <sys/random.h>
 
 int
 getentropy(void *buf, size_t buflen)
 {
-        int ret;
+        ssize_t ret;
 
         if (buflen > 256) {
                 errno = EIO;
                 return (-1);
         }