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Bug in libltdl?


From: Stephano Mariani
Subject: Bug in libltdl?
Date: Thu, 21 Mar 2002 00:08:36 -0000

libltdl (current from CVS) seems not to return NULL when lt_dlopen is
passed the name of a non-existent file. I have used:

void
sk_err ( char *e )
{
  fprintf ( stderr, "Error: %s\n", e );
  exit ( EXIT_FAILURE );
}

int
main ( int argc __attribute ( ( unused ) ),
  char *const *argv __attribute ( ( unused ) ) )
{
  lt_dlhandle mod = NULL;

  if ( lt_dlinit (  ) )
  {
    sk_err ( "Init" );
  }

  /* LTDL_SET_PRELOADED_SYMBOLS(); */

  if ( ( mod = lt_dlopen ( "non-existant.dll" ) ) == NULL )
  {
    sk_err ( "Open" );
  }

  if ( lt_dlclose ( mod ) )
  {
    sk_err ( "Close" );
  }

  if ( lt_dlexit (  ) )
  {
    sk_err ( "Exit" );
  }
  return 0;
}

I get a segfault on the lt_dlclose line since the module does not exist,
and yet lt_dlopen does not return NULL.

Please advise,

Thanks,
Stephano Mariani






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