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-rw-r--r--nptl/tst-stackguard1.c230
1 files changed, 0 insertions, 230 deletions
diff --git a/nptl/tst-stackguard1.c b/nptl/tst-stackguard1.c
deleted file mode 100644
index 77ebbfbd7e..0000000000
--- a/nptl/tst-stackguard1.c
+++ /dev/null
@@ -1,230 +0,0 @@
-/* Copyright (C) 2005 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Jakub Jelinek <jakub@redhat.com>, 2005.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#include <errno.h>
-#include <pthread.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/wait.h>
-#include <elf/stackguard-macros.h>
-#include <unistd.h>
-
-static const char *command;
-static bool child;
-static uintptr_t stack_chk_guard_copy;
-static bool stack_chk_guard_copy_set;
-static int fds[2];
-
-static void __attribute__ ((constructor))
-con (void)
-{
- stack_chk_guard_copy = STACK_CHK_GUARD;
- stack_chk_guard_copy_set = true;
-}
-
-static int
-uintptr_t_cmp (const void *a, const void *b)
-{
- if (*(uintptr_t *) a < *(uintptr_t *) b)
- return 1;
- if (*(uintptr_t *) a > *(uintptr_t *) b)
- return -1;
- return 0;
-}
-
-static void *
-tf (void *arg)
-{
- if (stack_chk_guard_copy != STACK_CHK_GUARD)
- {
- puts ("STACK_CHK_GUARD changed in thread");
- return (void *) 1L;
- }
- return NULL;
-}
-
-static int
-do_test (void)
-{
- if (!stack_chk_guard_copy_set)
- {
- puts ("constructor has not been run");
- return 1;
- }
-
- if (stack_chk_guard_copy != STACK_CHK_GUARD)
- {
- puts ("STACK_CHK_GUARD changed between constructor and do_test");
- return 1;
- }
-
- if (child)
- {
- int i;
- pthread_t th[4];
- void *ret;
- for (i = 0; i < 4; ++i)
- if (pthread_create (&th[i], NULL, tf, NULL))
- {
- puts ("thread creation failed");
- return 1;
- }
- for (i = 0; i < 4; ++i)
- if (pthread_join (th[i], &ret))
- {
- puts ("thread join failed");
- return 1;
- }
- else if (ret != NULL)
- return 1;
-
- write (2, &stack_chk_guard_copy, sizeof (stack_chk_guard_copy));
- return 0;
- }
-
- if (command == NULL)
- {
- puts ("missing --command or --child argument");
- return 1;
- }
-
-#define N 16
- uintptr_t child_stack_chk_guards[N + 1];
- child_stack_chk_guards[N] = stack_chk_guard_copy;
- int i;
- for (i = 0; i < N; ++i)
- {
- if (pipe (fds) < 0)
- {
- printf ("couldn't create pipe: %m\n");
- return 1;
- }
-
- pid_t pid = fork ();
- if (pid < 0)
- {
- printf ("fork failed: %m\n");
- return 1;
- }
-
- if (!pid)
- {
- if (stack_chk_guard_copy != STACK_CHK_GUARD)
- {
- puts ("STACK_CHK_GUARD changed after fork");
- exit (1);
- }
-
- close (fds[0]);
- close (2);
- dup2 (fds[1], 2);
- close (fds[1]);
-
- system (command);
- exit (0);
- }
-
- close (fds[1]);
-
- if (TEMP_FAILURE_RETRY (read (fds[0], &child_stack_chk_guards[i],
- sizeof (uintptr_t))) != sizeof (uintptr_t))
- {
- puts ("could not read stack_chk_guard value from child");
- return 1;
- }
-
- close (fds[0]);
-
- pid_t termpid;
- int status;
- termpid = TEMP_FAILURE_RETRY (waitpid (pid, &status, 0));
- if (termpid == -1)
- {
- printf ("waitpid failed: %m\n");
- return 1;
- }
- else if (termpid != pid)
- {
- printf ("waitpid returned %ld != %ld\n",
- (long int) termpid, (long int) pid);
- return 1;
- }
- else if (!WIFEXITED (status) || WEXITSTATUS (status))
- {
- puts ("child hasn't exited with exit status 0");
- return 1;
- }
- }
-
- qsort (child_stack_chk_guards, N + 1, sizeof (uintptr_t), uintptr_t_cmp);
-
- uintptr_t default_guard = 0;
- unsigned char *p = (unsigned char *) &default_guard;
- p[sizeof (uintptr_t) - 1] = 255;
- p[sizeof (uintptr_t) - 2] = '\n';
- p[0] = 0;
-
- /* Test if the stack guard canaries are either randomized,
- or equal to the default stack guard canary value.
- Even with randomized stack guards it might happen
- that the random number generator generates the same
- values, but if that happens in more than half from
- the 16 runs, something is very wrong. */
- int ndifferences = 0;
- int ndefaults = 0;
- int npartlyrandomized = 0;
- for (i = 0; i < N; ++i)
- {
- if (child_stack_chk_guards[i] != child_stack_chk_guards[i+1])
- ndifferences++;
- else if (child_stack_chk_guards[i] == default_guard)
- ndefaults++;
- else if (*(char *) &child_stack_chk_guards[i] == 0)
- npartlyrandomized++;
- }
-
- printf ("differences %d defaults %d partly randomized %d\n",
- ndifferences, ndefaults, npartlyrandomized);
-
- if ((ndifferences + ndefaults + npartlyrandomized) < 3 * N / 4)
- {
- puts ("stack guard canaries are not randomized enough");
- puts ("nor equal to the default canary value");
- return 1;
- }
-
- return 0;
-}
-
-#define OPT_COMMAND 10000
-#define OPT_CHILD 10001
-#define CMDLINE_OPTIONS \
- { "command", required_argument, NULL, OPT_COMMAND }, \
- { "child", no_argument, NULL, OPT_CHILD },
-#define CMDLINE_PROCESS \
- case OPT_COMMAND: \
- command = optarg; \
- break; \
- case OPT_CHILD: \
- child = true; \
- break;
-#define TEST_FUNCTION do_test ()
-#include "../test-skeleton.c"
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