1: /* Copyright (C) 2000 Free Software Foundation, Inc.
    2:    This file is part of the GNU C Library.
    3: 
    4:    The GNU C Library is free software; you can redistribute it and/or
    5:    modify it under the terms of the GNU Lesser General Public
    6:    License as published by the Free Software Foundation; either
    7:    version 2.1 of the License, or (at your option) any later version.
    8: 
    9:    The GNU C Library is distributed in the hope that it will be useful,
   10:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   11:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   12:    Lesser General Public License for more details.
   13: 
   14:    You should have received a copy of the GNU Lesser General Public
   15:    License along with the GNU C Library; if not, write to the Free
   16:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   17:    02111-1307 USA.  */
   18: 
   19: #include <dlfcn.h>
   20: #include <stdio.h>
   21: #include <stdlib.h>
   22: #include <string.h>
   23: 
   24: int
   25: main (void)
   26: {
   27:   void *h;
   28:   const char *s;
   29: 
   30:   /* Test that dlerror works initially.  */
   31:   s = dlerror ();
   32:   printf ("dlerror() without prior dl*() call returned: %s\n", s);
   33:   if (s != NULL)
   34:     return 1;
   35: 
   36:   h = dlopen ("errmsg1mod.so", RTLD_NOW);
   37:   if (h != NULL)
   38:     {
   39:       dlclose (h);
   40:       puts ("errmsg1mod.so could be loaded !?");
   41:       exit (1);
   42:     }
   43: 
   44:   s = dlerror ();
   45:   puts (s);
   46: 
   47:   return strstr (s, "errmsg1mod.so") == NULL;
   48: }