(scan_entries): 0 -> STDIN_FILENO.

diff --git a/src/who.c b/src/who.c
index b89f655..96524ce 100644 (file)
--- a/src/who.c
+++ b/src/who.c
@@ -577,7 +577,7 @@ scan_entries (size_t n, const STRUCT_UTMP *utmp_buf)
 
   if (my_line_only)
     {
-      ttyname_b = ttyname (0);
+      ttyname_b = ttyname (STDIN_FILENO);
       if (!ttyname_b)
        return;
       if (strncmp (ttyname_b, DEV_DIR_WITH_TRAILING_SLASH, DEV_DIR_LEN) == 0)