Update copyright dates everywhere

[adns.git] / regress / hplayback.c.m4

diff --git a/regress/hplayback.c.m4 b/regress/hplayback.c.m4
index 475144a786826589f990499a157b013b1c08b57b..b3c45c6c7eed1548c12a6d8df9bff9e3324ae3a0 100644 (file)
--- a/regress/hplayback.c.m4
+++ b/regress/hplayback.c.m4
@@ -3,7 +3,7 @@ m4_dnl (part of complex test harness, not of the library)
 m4_dnl - playback routines
 
 m4_dnl  This file is part of adns, which is
-m4_dnl    Copyright (C) 1997-2000,2003,2006,2014  Ian Jackson
+m4_dnl    Copyright (C) 1997-2000,2003,2006,2014-2016,2020  Ian Jackson
 m4_dnl    Copyright (C) 2014  Mark Wooding
 m4_dnl    Copyright (C) 1999-2000,2003,2006  Tony Finch
 m4_dnl    Copyright (C) 1991 Massachusetts Institute of Technology
@@ -150,6 +150,11 @@ static void P_updatetime(void) {
 static void Pfdset(fd_set *set, int max) {
   int r, c;
   char *ep;
+
+  if (!set) {
+    Pstring("null","null fdset pointer");
+    return;
+  }
   
   if (vb2.buf[vb2.used++] != hm_squote[hm_squote) Psyntax("fd set start not [");
   FD_ZERO(set);