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65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/* Check cookie initialization for many auditors. Auditor template.
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Copyright (C) 2019-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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/* The macro MOD must be defined to the number of this auditor (an
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integer) before including this file. */
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#include <link.h>
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#include <stdio.h>
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#include <unistd.h>
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/* Error counter for delayed error reporting. */
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static int errors;
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unsigned int
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la_version (unsigned int version)
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{
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return version;
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}
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unsigned int
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la_objopen (struct link_map *map, Lmid_t lmid,
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uintptr_t *cookie)
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{
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struct link_map *cookie_map = (struct link_map *) *cookie;
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printf ("info: %d, la_objopen: map=%p name=%s cookie=%p:%p diff=%td\n",
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MOD, map, map->l_name, cookie, cookie_map,
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(char *) cookie - (char *) map);
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fflush (stdout);
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if (map != cookie_map)
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{
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printf ("error: %d, la_objopen:"
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" map address does not match cookie value\n",
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MOD);
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fflush (stdout);
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++errors;
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}
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return 0;
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}
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extern unsigned int
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la_objclose (uintptr_t *__cookie)
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{
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if (errors != 0)
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{
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printf ("error: exiting due to previous errors");
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_exit (1);
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}
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return 0;
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}
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