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239 lines
5.7 KiB
C
239 lines
5.7 KiB
C
/* Test and measure strcat functions.
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Copyright (C) 1999-2014 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Written by Jakub Jelinek <jakub@redhat.com>, 1999.
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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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<http://www.gnu.org/licenses/>. */
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#define TEST_MAIN
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#define TEST_NAME "strcat"
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#include "test-string.h"
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typedef char *(*proto_t) (char *, const char *);
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char *simple_strcat (char *, const char *);
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IMPL (simple_strcat, 0)
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IMPL (strcat, 1)
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char *
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simple_strcat (char *dst, const char *src)
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{
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char *ret = dst;
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while (*dst++ != '\0');
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--dst;
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while ((*dst++ = *src++) != '\0');
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return ret;
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}
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static void
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do_one_test (impl_t *impl, char *dst, const char *src)
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{
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size_t k = strlen (dst);
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if (CALL (impl, dst, src) != dst)
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{
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error (0, 0, "Wrong result in function %s %p %p", impl->name,
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CALL (impl, dst, src), dst);
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ret = 1;
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return;
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}
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if (strcmp (dst + k, src) != 0)
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{
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error (0, 0, "Wrong result in function %s dst \"%s\" src \"%s\"",
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impl->name, dst, src);
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ret = 1;
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return;
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}
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}
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static void
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do_test (size_t align1, size_t align2, size_t len1, size_t len2, int max_char)
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{
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size_t i;
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char *s1, *s2;
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align1 &= 7;
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if (align1 + len1 >= page_size)
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return;
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align2 &= 7;
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if (align2 + len1 + len2 >= page_size)
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return;
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s1 = (char *) (buf1 + align1);
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s2 = (char *) (buf2 + align2);
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for (i = 0; i < len1; ++i)
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s1[i] = 32 + 23 * i % (max_char - 32);
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s1[len1] = '\0';
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for (i = 0; i < len2; i++)
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s2[i] = 32 + 23 * i % (max_char - 32);
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FOR_EACH_IMPL (impl, 0)
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{
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s2[len2] = '\0';
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do_one_test (impl, s2, s1);
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}
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}
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static void
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do_random_tests (void)
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{
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size_t i, j, n, align1, align2, len1, len2;
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unsigned char *p1 = buf1 + page_size - 512;
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unsigned char *p2 = buf2 + page_size - 512;
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unsigned char *res;
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for (n = 0; n < ITERATIONS; n++)
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{
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align1 = random () & 31;
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if (random () & 1)
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align2 = random () & 31;
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else
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align2 = align1 + (random () & 24);
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len1 = random () & 511;
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if (len1 + align2 > 512)
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len2 = random () & 7;
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else
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len2 = (512 - len1 - align2) * (random () & (1024 * 1024 - 1))
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/ (1024 * 1024);
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j = align1;
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if (align2 + len2 > j)
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j = align2 + len2;
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if (len1 + j >= 511)
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len1 = 510 - j - (random () & 7);
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if (len1 >= 512)
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len1 = 0;
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if (align1 + len1 < 512 - 8)
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{
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j = 510 - align1 - len1 - (random () & 31);
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if (j > 0 && j < 512)
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align1 += j;
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}
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j = len1 + align1 + 64;
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if (j > 512)
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j = 512;
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for (i = 0; i < j; i++)
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{
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if (i == len1 + align1)
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p1[i] = 0;
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else
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{
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p1[i] = random () & 255;
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if (i >= align1 && i < len1 + align1 && !p1[i])
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p1[i] = (random () & 127) + 3;
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}
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}
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for (i = 0; i < len2; i++)
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{
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buf1[i] = random () & 255;
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if (!buf1[i])
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buf1[i] = (random () & 127) + 3;
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}
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buf1[len2] = 0;
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FOR_EACH_IMPL (impl, 1)
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{
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memset (p2 - 64, '\1', align2 + 64);
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memset (p2 + align2 + len2 + 1, '\1', 512 - align2 - len2 - 1);
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memcpy (p2 + align2, buf1, len2 + 1);
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res = (unsigned char *) CALL (impl, (char *) (p2 + align2),
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(char *) (p1 + align1));
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if (res != p2 + align2)
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{
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error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd %zd) %p != %p",
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n, impl->name, align1, align2, len1, len2, res,
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p2 + align2);
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ret = 1;
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}
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for (j = 0; j < align2 + 64; ++j)
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{
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if (p2[j - 64] != '\1')
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{
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error (0, 0, "Iteration %zd - garbage before, %s (%zd, %zd, %zd, %zd)",
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n, impl->name, align1, align2, len1, len2);
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ret = 1;
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break;
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}
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}
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if (memcmp (p2 + align2, buf1, len2))
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{
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error (0, 0, "Iteration %zd - garbage in string before, %s (%zd, %zd, %zd, %zd)",
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n, impl->name, align1, align2, len1, len2);
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ret = 1;
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}
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for (j = align2 + len1 + len2 + 1; j < 512; ++j)
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{
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if (p2[j] != '\1')
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{
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error (0, 0, "Iteration %zd - garbage after, %s (%zd, %zd, %zd, %zd)",
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n, impl->name, align1, align2, len1, len2);
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ret = 1;
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break;
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}
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}
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if (memcmp (p1 + align1, p2 + align2 + len2, len1 + 1))
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{
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error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd, %zd)",
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n, impl->name, align1, align2, len1, len2);
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ret = 1;
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}
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}
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}
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}
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int
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test_main (void)
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{
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size_t i;
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test_init ();
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printf ("%28s", "");
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FOR_EACH_IMPL (impl, 0)
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printf ("\t%s", impl->name);
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putchar ('\n');
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for (i = 0; i < 16; ++i)
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{
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do_test (0, 0, i, i, 127);
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do_test (0, 0, i, i, 255);
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do_test (0, i, i, i, 127);
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do_test (i, 0, i, i, 255);
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}
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for (i = 1; i < 8; ++i)
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{
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do_test (0, 0, 8 << i, 8 << i, 127);
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do_test (8 - i, 2 * i, 8 << i, 8 << i, 127);
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do_test (0, 0, 8 << i, 2 << i, 127);
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do_test (8 - i, 2 * i, 8 << i, 2 << i, 127);
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}
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for (i = 1; i < 8; ++i)
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{
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do_test (i, 2 * i, 8 << i, 1, 127);
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do_test (2 * i, i, 8 << i, 1, 255);
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do_test (i, i, 8 << i, 10, 127);
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do_test (i, i, 8 << i, 10, 255);
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}
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do_random_tests ();
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return ret;
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}
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#include "../test-skeleton.c"
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