ncurses 6.0 - patch 20170225

[ncurses.git] / test / ditto.c

diff --git a/test/ditto.c b/test/ditto.c
index 921f216bb56157d733c8bc877ff38a0e9a457aaf..84327c0fcdc54336efa8c2b5abd1a18d64590493 100644 (file)
--- a/test/ditto.c
+++ b/test/ditto.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2011,2012 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2012,2016 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -29,7 +29,7 @@
 /*
  * Author: Thomas E. Dickey (1998-on)
  *
- * $Id: ditto.c,v 1.42 2012/11/24 20:16:18 tom Exp $
+ * $Id: ditto.c,v 1.44 2016/09/04 20:43:04 tom Exp $
  *
  * The program illustrates how to set up multiple screens from a single
  * program.
@@ -155,6 +155,10 @@ open_tty(char *path)
     int aslave;
     char slave_name[1024];
     char s_option[sizeof(slave_name) + 80];
+    const char *xterm_prog = 0;
+
+    if ((xterm_prog = getenv("XTERM_PROG")) == 0)
+       xterm_prog = "xterm";
 
     if (openpty(&amaster, &aslave, slave_name, 0, 0) != 0
        || strlen(slave_name) > sizeof(slave_name) - 1)
@@ -163,9 +167,10 @@ open_tty(char *path)
        errno = EISDIR;
        failed(slave_name);
     }
-    sprintf(s_option, "-S%s/%d", slave_name, aslave);
+    _nc_SPRINTF(s_option, _nc_SLIMIT(sizeof(s_option))
+               "-S%s/%d", slave_name, aslave);
     if (fork()) {
-       execlp("xterm", "xterm", s_option, "-title", path, (char *) 0);
+       execlp(xterm_prog, xterm_prog, s_option, "-title", path, (char *) 0);
        _exit(0);
     }
     fp = fdopen(amaster, "r+");