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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/string/tst-strcoll-overflow.c
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
downloadglibc-zack/build-layout-experiment.tar.gz
glibc-zack/build-layout-experiment.tar.xz
glibc-zack/build-layout-experiment.zip
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/string/tst-strcoll-overflow.c')
-rw-r--r--REORG.TODO/string/tst-strcoll-overflow.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/REORG.TODO/string/tst-strcoll-overflow.c b/REORG.TODO/string/tst-strcoll-overflow.c
new file mode 100644
index 0000000000..826af4f8a8
--- /dev/null
+++ b/REORG.TODO/string/tst-strcoll-overflow.c
@@ -0,0 +1,54 @@
+/* Copyright (C) 2013-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <locale.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <support/check.h>
+#include <support/test-driver.h>
+
+/* Verify that strcoll does not crash for large strings for which it
+   cannot cache weight lookup results.  The size is large enough to
+   cause integer overflows on 32-bit as well as buffer overflows on
+   64-bit.  */
+#define SIZE 0x40000000ul
+
+int
+do_test (void)
+{
+  TEST_VERIFY_EXIT (setlocale (LC_COLLATE, "en_GB.UTF-8") != NULL);
+
+  char *p = malloc (SIZE);
+  if (p == NULL)
+    {
+      puts ("info: could not allocate memory, cannot run test");
+      return EXIT_UNSUPPORTED;
+    }
+
+  memset (p, 'x', SIZE - 1);
+  p[SIZE - 1] = 0;
+  printf ("info: strcoll result: %d\n", strcoll (p, p));
+  return 0;
+}
+
+/* This test can rung for a long time, but it should complete within
+   this time on reasonably current hardware.  */
+#define TIMEOUT 300
+#include <support/test-driver.c>