prnatid: Recover from getnatp() failure

[empserver] / src / lib / subs / natsub.c

diff --git a/src/lib/subs/natsub.c b/src/lib/subs/natsub.c
index 6470773fb377408d7c350b78d258ec99c0a6e22f..9e261613872934c808328b0f54b6f25e002d5452 100644 (file)
--- a/src/lib/subs/natsub.c
+++ b/src/lib/subs/natsub.c
@@ -27,7 +27,7 @@
  *  nat.c: Nation subroutines
  *
  *  Known contributors to this file:
- *     Markus Armbruster, 2009-2011
+ *     Markus Armbruster, 2009-2013
  *     Ron Koenderink, 2008-2009
  */
 
@@ -72,3 +72,19 @@ check_nat_name(char *cname, natid cnum)
     }
     return 1;
 }
+
+char *
+prnat(struct natstr *np)
+{
+    return prbuf("%s (#%d)", np->nat_cnam, np->nat_cnum);
+}
+
+char *
+prnatid(natid cnum)
+{
+    struct natstr *np = getnatp(cnum);
+
+    if (CANT_HAPPEN(!np))
+       return prbuf("%d (#%d)", cnum, cnum);
+    return prnat(np);
+}