File pipe-command-hostname-not-null.patch of Package uucp

--- unix/pipe.c.orig	2023-10-26 07:37:12.082076653 +0200
+++ unix/pipe.c	2023-10-26 07:54:33.401543580 +0200
@@ -201,6 +201,7 @@
   int aidescs[3];
   const char **pzprog;
   char **p;
+  const char *zhost;
 
   q = (struct ssysdep_conn *) qconn->psysdep;
 
@@ -214,10 +215,22 @@
       return FALSE;
     }
 
+  zhost = zphone;
+  if (zhost == NULL)
+    {
+      if (qsys == NULL)
+        {
+          ulog (LOG_ERROR, "No address for pipe connection");
+          return FALSE;
+        }
+      zhost = qsys->uuconf_zname;
+    }
+
+
   /* Look for a string \H and replace it by the address given for this system */
   for (p=pzprog; *p; p++)
     if (!strcmp(*p, "\\H"))
-      *p = zphone;
+      *p = zhost;
 
   /* Look for a string \Z and replace by the system name to be called */
   for (p=pzprog; *p; p++)