elf/tst-dlopenrpath.c

   1 /* Copyright (C) 2004-2022 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, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <dlfcn.h>
  19 #include <errno.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <unistd.h>
  23 #include <sys/stat.h>
  24
  25
  26 extern int foo (void);
  27
  28 static const char testsubdir[] = PFX "test-subdir";
  29
  30
  31 static int
  32 do_test (void)
  33 {
  34   struct stat64 st;
  35   int result = 1;
  36
  37   if (mkdir (testsubdir, 0777) != 0
  38       && (errno != EEXIST
  39           || stat64 (testsubdir, &st) != 0
  40           || !S_ISDIR (st.st_mode)))
  41     {
  42       printf ("cannot create directory %s\n", testsubdir);
  43       return 1;
  44     }
  45
  46   if (system ("cp " PFX "firstobj.so " PFX "test-subdir/in-subdir.so") != 0)
  47     {
  48       puts ("cannot copy DSO");
  49       return 1;
  50     }
  51
  52   void *p = dlopen ("in-subdir.so", RTLD_LAZY|RTLD_LOCAL);
  53   if (p != NULL)
  54     {
  55       puts ("succeeded in opening in-subdir.so from do_test");
  56       dlclose (p);
  57       goto out;
  58     }
  59
  60   result = foo ();
  61
  62  out:
  63   unlink (PFX "test-subdir/in-subdir.so");
  64   rmdir (testsubdir);
  65
  66   return result;
  67 }
  68
  69 #include <support/test-driver.c>