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-rw-r--r--string/tst-cmp.c212
1 files changed, 0 insertions, 212 deletions
diff --git a/string/tst-cmp.c b/string/tst-cmp.c
deleted file mode 100644
index d7720194e9..0000000000
--- a/string/tst-cmp.c
+++ /dev/null
@@ -1,212 +0,0 @@
-/* Alignment/padding coverage test for string comparison.
- Copyright (C) 2016-2017 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/>. */
-
-/* This performs test comparisons with various (mis)alignments and
- characters in the padding. It is partly a regression test for bug
- 20327. */
-
-#include <limits.h>
-#include <malloc.h>
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-
-static int
-signum (int val)
-{
- if (val < 0)
- return -1;
- if (val > 0)
- return 1;
- else
- return 0;
-}
-
-static size_t
-max_size_t (size_t left, size_t right)
-{
- if (left > right)
- return left;
- else
- return right;
-}
-
-/* Wrappers for strncmp and strncasecmp which determine the maximum
- string length in some, either based on the input string length, or
- using fixed constants. */
-
-static int
-strncmp_no_terminator (const char *left, const char *right)
-{
- size_t left_len = strlen (left);
- size_t right_len = strlen (right);
- return strncmp (left, right, max_size_t (left_len, right_len));
-}
-
-static int
-strncasecmp_no_terminator (const char *left, const char *right)
-{
- size_t left_len = strlen (left);
- size_t right_len = strlen (right);
- return strncasecmp (left, right, max_size_t (left_len, right_len));
-}
-
-static int
-strncmp_terminator (const char *left, const char *right)
-{
- size_t left_len = strlen (left);
- size_t right_len = strlen (right);
- return strncmp (left, right, max_size_t (left_len, right_len));
-}
-
-static int
-strncasecmp_terminator (const char *left, const char *right)
-{
- size_t left_len = strlen (left);
- size_t right_len = strlen (right);
- return strncasecmp (left, right, max_size_t (left_len, right_len));
-}
-
-static int
-strncmp_64 (const char *left, const char *right)
-{
- return strncmp (left, right, 64);
-}
-
-static int
-strncasecmp_64 (const char *left, const char *right)
-{
- return strncasecmp (left, right, 64);
-}
-
-static int
-strncmp_max (const char *left, const char *right)
-{
- return strncmp (left, right, SIZE_MAX);
-}
-
-static int
-strncasecmp_max (const char *left, const char *right)
-{
- return strncasecmp (left, right, SIZE_MAX);
-}
-
-int
-do_test (void)
-{
- enum {
- max_align = 64,
- max_string_length = 33
- };
- size_t blob_size = max_align + max_string_length + 1;
- char *left = memalign (max_align, blob_size);
- char *right = memalign (max_align, blob_size);
- if (left == NULL || right == NULL)
- {
- printf ("error: out of memory\n");
- return 1;
- }
-
- const struct
- {
- const char *name;
- int (*implementation) (const char *, const char *);
- } functions[] =
- {
- { "strcmp", strcmp },
- { "strcasecmp", strcasecmp },
- { "strncmp (without NUL)", strncmp_no_terminator},
- { "strncasecmp (without NUL)", strncasecmp_no_terminator},
- { "strncmp (with NUL)", strncmp_terminator},
- { "strncasecmp (with NUL)", strncasecmp_terminator},
- { "strncmp (length 64)", strncmp_64},
- { "strncasecmp (length 64)", strncasecmp_64},
- { "strncmp (length SIZE_MAX)", strncmp_max},
- { "strncasecmp (length SIZE_MAX)", strncasecmp_max},
- { NULL, NULL }
- };
- const char *const strings[] =
- {
- "",
- "0",
- "01",
- "01234567",
- "0123456789abcde",
- "0123456789abcdef",
- "0123456789abcdefg",
- "1",
- "10",
- "123456789abcdef",
- "123456789abcdefg",
- "23456789abcdef",
- "23456789abcdefg",
- "abcdefghijklmnopqrstuvwxyzABCDEF",
- NULL
- };
- const unsigned char pads[] =
- { 0, 1, 32, 64, 128, '0', '1', 'e', 'f', 'g', 127, 192, 255 };
-
- bool errors = false;
- for (int left_idx = 0; strings[left_idx] != NULL; ++left_idx)
- for (int left_align = 0; left_align < max_align; ++left_align)
- for (unsigned pad_left = 0; pad_left < sizeof (pads); ++pad_left)
- {
- memset (left, pads[pad_left], blob_size);
- strcpy (left + left_align, strings[left_idx]);
-
- for (int right_idx = 0; strings[right_idx] != NULL; ++right_idx)
- for (unsigned pad_right = 0; pad_right < sizeof (pads);
- ++pad_right)
- for (int right_align = 0; right_align < max_align;
- ++right_align)
- {
- memset (right, pads[pad_right], blob_size);
- strcpy (right + right_align, strings[right_idx]);
-
- for (int func = 0; functions[func].name != NULL; ++func)
- {
- int expected = left_idx - right_idx;
- int actual = functions[func].implementation
- (left + left_align, right + right_align);
- if (signum (actual) != signum (expected))
- {
- printf ("error: mismatch for %s: %d\n"
- " left: \"%s\"\n"
- " right: \"%s\"\n"
- " pad_left = %u, pad_right = %u,\n"
- " left_align = %d, right_align = %d\n",
- functions[func].name, actual,
- strings[left_idx], strings[right_idx],
- pad_left, pad_right,
- left_align, right_align);
- errors = true;
- }
- }
- }
- }
- free (right);
- free (left);
- return errors;
-}
-
-/* The nested loops need a long time to complete on slower
- machines. */
-#define TIMEOUT 300
-
-#include <support/test-driver.c>