[thirdparty/glibc.git] / string / test-strcpy.c

/* Test and measure strcpy functions.
   Copyright (C) 1999-2017 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
   Added wcscpy support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011

   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/>.  */

#ifdef WIDE
# include <wchar.h>
# define CHAR wchar_t
# define UCHAR wchar_t
# define sfmt "ls"
# define BIG_CHAR WCHAR_MAX
# define SMALL_CHAR 1273
# define STRCMP wcscmp
# define MEMCMP wmemcmp
# define MEMSET wmemset
#else
# define CHAR char
# define UCHAR unsigned char
# define sfmt "s"
# define BIG_CHAR CHAR_MAX
# define SMALL_CHAR 127
# define STRCMP strcmp
# define MEMCMP memcmp
# define MEMSET memset
#endif

#ifndef STRCPY_RESULT
# define STRCPY_RESULT(dst, len) dst
# define TEST_MAIN
# ifndef WIDE
#  define TEST_NAME "strcpy"
# else
#  define TEST_NAME "wcscpy"
# endif
# include "test-string.h"
# ifndef WIDE
#  define SIMPLE_STRCPY simple_strcpy
#  define STRCPY strcpy
# else
#  define SIMPLE_STRCPY simple_wcscpy
#  define STRCPY wcscpy
# endif

CHAR *SIMPLE_STRCPY (CHAR *, const CHAR *);

IMPL (SIMPLE_STRCPY, 0)
IMPL (STRCPY, 1)

CHAR *
SIMPLE_STRCPY (CHAR *dst, const CHAR *src)
{
  CHAR *ret = dst;
  while ((*dst++ = *src++) != '\0');
  return ret;
}
#endif

typedef CHAR *(*proto_t) (CHAR *, const CHAR *);

static void
do_one_test (impl_t *impl, CHAR *dst, const CHAR *src,
	     size_t len __attribute__((unused)))
{
  if (CALL (impl, dst, src) != STRCPY_RESULT (dst, len))
    {
      error (0, 0, "Wrong result in function %s %p %p", impl->name,
	     CALL (impl, dst, src), STRCPY_RESULT (dst, len));
      ret = 1;
      return;
    }

  if (STRCMP (dst, src) != 0)
    {
      error (0, 0,
	     "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"",
	     impl->name, dst, src);
      ret = 1;
      return;
    }
}

static void
do_test (size_t align1, size_t align2, size_t len, int max_char)
{
  size_t i;
  CHAR *s1, *s2;
/* For wcscpy: align1 and align2 here mean alignment not in bytes,
   but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t))
   len for wcschr here isn't in bytes but it's number of wchar_t symbols.  */
  align1 &= 7;
  if ((align1 + len) * sizeof(CHAR) >= page_size)
    return;

  align2 &= 7;
  if ((align2 + len) * sizeof(CHAR) >= page_size)
    return;

  s1 = (CHAR *) (buf1) + align1;
  s2 = (CHAR *) (buf2) + align2;

  for (i = 0; i < len; i++)
    s1[i] = 32 + 23 * i % (max_char - 32);
  s1[len] = 0;

  FOR_EACH_IMPL (impl, 0)
    do_one_test (impl, s2, s1, len);
}

static void
do_random_tests (void)
{
  size_t i, j, n, align1, align2, len;
  UCHAR *p1 = (UCHAR *) (buf1 + page_size) - 512;
  UCHAR *p2 = (UCHAR *) (buf2 + page_size) - 512;
  UCHAR *res;

  for (n = 0; n < ITERATIONS; n++)
    {
      /* For wcsrchr: align1 and align2 here mean align not in bytes,
	 but in wchar_ts, in bytes it will equal to align * (sizeof
	 (wchar_t)).  For strrchr we need to check all alignments from
	 0 to 63 since some assembly implementations have separate
	 prolog for alignments more 48. */

      align1 = random () & (63 / sizeof(CHAR));
      if (random () & 1)
	align2 = random () & (63 / sizeof(CHAR));
      else
	align2 = align1 + (random () & 24);
      len = random () & 511;
      j = align1;
      if (align2 > j)
	j = align2;
      if (len + j >= 511)
	len = 510 - j - (random () & 7);
      j = len + align1 + 64;
      if (j > 512)
	j = 512;
      for (i = 0; i < j; i++)
	{
	  if (i == len + align1)
	    p1[i] = 0;
	  else
	    {
	      p1[i] = random () & BIG_CHAR;
	      if (i >= align1 && i < len + align1 && !p1[i])
		p1[i] = (random () & SMALL_CHAR) + 3;
	    }
	}

      FOR_EACH_IMPL (impl, 1)
	{
	  MEMSET (p2 - 64, '\1', 512 + 64);
	  res = (UCHAR *) CALL (impl, (CHAR *) (p2 + align2), (CHAR *) (p1 + align1));
	  if (res != STRCPY_RESULT (p2 + align2, len))
	    {
	      error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd) %p != %p",
		     n, impl->name, align1, align2, len, res,
		     STRCPY_RESULT (p2 + align2, len));
	      ret = 1;
	    }
	  for (j = 0; j < align2 + 64; ++j)
	    {
	      if (p2[j - 64] != '\1')
		{
		  error (0, 0, "Iteration %zd - garbage before, %s (%zd, %zd, %zd)",
			 n, impl->name, align1, align2, len);
		  ret = 1;
		  break;
		}
	    }
	  for (j = align2 + len + 1; j < 512; ++j)
	    {
	      if (p2[j] != '\1')
		{
		  error (0, 0, "Iteration %zd - garbage after, %s (%zd, %zd, %zd)",
			 n, impl->name, align1, align2, len);
		  ret = 1;
		  break;
		}
	    }
	  if (MEMCMP (p1 + align1, p2 + align2, len + 1))
	    {
	      error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd)",
		     n, impl->name, align1, align2, len);
	      ret = 1;
	    }
	}
    }
}

int
test_main (void)
{
  size_t i;

  test_init ();

  printf ("%23s", "");
  FOR_EACH_IMPL (impl, 0)
    printf ("\t%s", impl->name);
  putchar ('\n');

  for (i = 0; i < 16; ++i)
    {
      do_test (0, 0, i, SMALL_CHAR);
      do_test (0, 0, i, BIG_CHAR);
      do_test (0, i, i, SMALL_CHAR);
      do_test (i, 0, i, BIG_CHAR);
    }

  for (i = 1; i < 8; ++i)
    {
      do_test (0, 0, 8 << i, SMALL_CHAR);
      do_test (8 - i, 2 * i, 8 << i, SMALL_CHAR);
    }

  for (i = 1; i < 8; ++i)
    {
      do_test (i, 2 * i, 8 << i, SMALL_CHAR);
      do_test (2 * i, i, 8 << i, BIG_CHAR);
      do_test (i, i, 8 << i, SMALL_CHAR);
      do_test (i, i, 8 << i, BIG_CHAR);
    }

  do_random_tests ();
  return ret;
}

#include "../test-skeleton.c"
Commit	Line	Data
58ef9ef7	1	/* Test and measure strcpy functions.
bfff8b1b	2	Copyright (C) 1999-2017 Free Software Foundation, Inc.
58ef9ef7 RM	3	This file is part of the GNU C Library.
58ef9ef7 RM	4	Written by Jakub Jelinek <jakub@redhat.com>, 1999.
5b330a2d	5	Added wcscpy support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011
58ef9ef7 RM	6
	7	The GNU C Library is free software; you can redistribute it and/or
	8	modify it under the terms of the GNU Lesser General Public
	9	License as published by the Free Software Foundation; either
	10	version 2.1 of the License, or (at your option) any later version.
	11
	12	The GNU C Library is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	Lesser General Public License for more details.
	16
	17	You should have received a copy of the GNU Lesser General Public
59ba27a6 PE	18	License along with the GNU C Library; if not, see
59ba27a6 PE	19	<http://www.gnu.org/licenses/>. */
58ef9ef7	20
5b330a2d UD	21	#ifdef WIDE
	22	# include <wchar.h>
	23	# define CHAR wchar_t
	24	# define UCHAR wchar_t
df78418a	25	# define sfmt "ls"
5b330a2d UD	26	# define BIG_CHAR WCHAR_MAX
	27	# define SMALL_CHAR 1273
	28	# define STRCMP wcscmp
	29	# define MEMCMP wmemcmp
	30	# define MEMSET wmemset
	31	#else
	32	# define CHAR char
	33	# define UCHAR unsigned char
df78418a	34	# define sfmt "s"
5b330a2d UD	35	# define BIG_CHAR CHAR_MAX
	36	# define SMALL_CHAR 127
	37	# define STRCMP strcmp
	38	# define MEMCMP memcmp
	39	# define MEMSET memset
	40	#endif
	41
58ef9ef7 RM	42	#ifndef STRCPY_RESULT
	43	# define STRCPY_RESULT(dst, len) dst
	44	# define TEST_MAIN
69f07e5f L	45	# ifndef WIDE
	46	# define TEST_NAME "strcpy"
	47	# else
	48	# define TEST_NAME "wcscpy"
	49	# endif
58ef9ef7	50	# include "test-string.h"
5b330a2d UD	51	# ifndef WIDE
	52	# define SIMPLE_STRCPY simple_strcpy
	53	# define STRCPY strcpy
	54	# else
	55	# define SIMPLE_STRCPY simple_wcscpy
	56	# define STRCPY wcscpy
	57	# endif
58ef9ef7	58
5b330a2d	59	CHAR SIMPLE_STRCPY (CHAR , const CHAR *);
58ef9ef7	60
5b330a2d UD	61	IMPL (SIMPLE_STRCPY, 0)
5b330a2d UD	62	IMPL (STRCPY, 1)
58ef9ef7	63
5b330a2d UD	64	CHAR *
5b330a2d UD	65	SIMPLE_STRCPY (CHAR dst, const CHAR src)
58ef9ef7	66	{
5b330a2d	67	CHAR *ret = dst;
58ef9ef7 RM	68	while ((dst++ = src++) != '\0');
	69	return ret;
	70	}
	71	#endif
	72
5b330a2d	73	typedef CHAR (proto_t) (CHAR , const CHAR );
58ef9ef7 RM	74
58ef9ef7 RM	75	static void
5b330a2d	76	do_one_test (impl_t impl, CHAR dst, const CHAR *src,
58ef9ef7 RM	77	size_t len __attribute__((unused)))
	78	{
	79	if (CALL (impl, dst, src) != STRCPY_RESULT (dst, len))
	80	{
	81	error (0, 0, "Wrong result in function %s %p %p", impl->name,
	82	CALL (impl, dst, src), STRCPY_RESULT (dst, len));
	83	ret = 1;
	84	return;
	85	}
	86
5b330a2d	87	if (STRCMP (dst, src) != 0)
58ef9ef7	88	{
df78418a UD	89	error (0, 0,
df78418a UD	90	"Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"",
58ef9ef7 RM	91	impl->name, dst, src);
	92	ret = 1;
	93	return;
	94	}
58ef9ef7 RM	95	}
	96
	97	static void
	98	do_test (size_t align1, size_t align2, size_t len, int max_char)
	99	{
	100	size_t i;
5b330a2d UD	101	CHAR s1, s2;
	102	/* For wcscpy: align1 and align2 here mean alignment not in bytes,
	103	but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t))
	104	len for wcschr here isn't in bytes but it's number of wchar_t symbols. */
58ef9ef7	105	align1 &= 7;
5b330a2d	106	if ((align1 + len) * sizeof(CHAR) >= page_size)
58ef9ef7 RM	107	return;
	108
	109	align2 &= 7;
5b330a2d	110	if ((align2 + len) * sizeof(CHAR) >= page_size)
58ef9ef7 RM	111	return;
58ef9ef7 RM	112
5b330a2d UD	113	s1 = (CHAR *) (buf1) + align1;
5b330a2d UD	114	s2 = (CHAR *) (buf2) + align2;
58ef9ef7 RM	115
	116	for (i = 0; i < len; i++)
	117	s1[i] = 32 + 23 * i % (max_char - 32);
	118	s1[len] = 0;
	119
58ef9ef7 RM	120	FOR_EACH_IMPL (impl, 0)
58ef9ef7 RM	121	do_one_test (impl, s2, s1, len);
58ef9ef7 RM	122	}
	123
	124	static void
	125	do_random_tests (void)
	126	{
	127	size_t i, j, n, align1, align2, len;
5b330a2d UD	128	UCHAR p1 = (UCHAR ) (buf1 + page_size) - 512;
	129	UCHAR p2 = (UCHAR ) (buf2 + page_size) - 512;
	130	UCHAR *res;
58ef9ef7 RM	131
	132	for (n = 0; n < ITERATIONS; n++)
	133	{
a2d18b64 UD	134	/* For wcsrchr: align1 and align2 here mean align not in bytes,
	135	but in wchar_ts, in bytes it will equal to align * (sizeof
	136	(wchar_t)). For strrchr we need to check all alignments from
	137	0 to 63 since some assembly implementations have separate
	138	prolog for alignments more 48. */
5b330a2d UD	139
5b330a2d UD	140	align1 = random () & (63 / sizeof(CHAR));
58ef9ef7	141	if (random () & 1)
5b330a2d	142	align2 = random () & (63 / sizeof(CHAR));
58ef9ef7 RM	143	else
	144	align2 = align1 + (random () & 24);
	145	len = random () & 511;
	146	j = align1;
	147	if (align2 > j)
	148	j = align2;
	149	if (len + j >= 511)
	150	len = 510 - j - (random () & 7);
	151	j = len + align1 + 64;
	152	if (j > 512)
	153	j = 512;
	154	for (i = 0; i < j; i++)
	155	{
	156	if (i == len + align1)
	157	p1[i] = 0;
	158	else
	159	{
5b330a2d	160	p1[i] = random () & BIG_CHAR;
58ef9ef7	161	if (i >= align1 && i < len + align1 && !p1[i])
5b330a2d	162	p1[i] = (random () & SMALL_CHAR) + 3;
58ef9ef7 RM	163	}
	164	}
	165
	166	FOR_EACH_IMPL (impl, 1)
	167	{
5b330a2d UD	168	MEMSET (p2 - 64, '\1', 512 + 64);
5b330a2d UD	169	res = (UCHAR ) CALL (impl, (CHAR ) (p2 + align2), (CHAR *) (p1 + align1));
58ef9ef7 RM	170	if (res != STRCPY_RESULT (p2 + align2, len))
	171	{
	172	error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd) %p != %p",
	173	n, impl->name, align1, align2, len, res,
	174	STRCPY_RESULT (p2 + align2, len));
	175	ret = 1;
	176	}
	177	for (j = 0; j < align2 + 64; ++j)
	178	{
	179	if (p2[j - 64] != '\1')
	180	{
	181	error (0, 0, "Iteration %zd - garbage before, %s (%zd, %zd, %zd)",
	182	n, impl->name, align1, align2, len);
	183	ret = 1;
	184	break;
	185	}
	186	}
	187	for (j = align2 + len + 1; j < 512; ++j)
	188	{
	189	if (p2[j] != '\1')
	190	{
	191	error (0, 0, "Iteration %zd - garbage after, %s (%zd, %zd, %zd)",
	192	n, impl->name, align1, align2, len);
	193	ret = 1;
	194	break;
	195	}
	196	}
5b330a2d	197	if (MEMCMP (p1 + align1, p2 + align2, len + 1))
58ef9ef7 RM	198	{
	199	error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd)",
	200	n, impl->name, align1, align2, len);
	201	ret = 1;
	202	}
	203	}
	204	}
	205	}
	206
	207	int
	208	test_main (void)
	209	{
	210	size_t i;
	211
	212	test_init ();
	213
	214	printf ("%23s", "");
	215	FOR_EACH_IMPL (impl, 0)
	216	printf ("\t%s", impl->name);
	217	putchar ('\n');
	218
	219	for (i = 0; i < 16; ++i)
	220	{
5b330a2d UD	221	do_test (0, 0, i, SMALL_CHAR);
	222	do_test (0, 0, i, BIG_CHAR);
	223	do_test (0, i, i, SMALL_CHAR);
	224	do_test (i, 0, i, BIG_CHAR);
58ef9ef7 RM	225	}
	226
	227	for (i = 1; i < 8; ++i)
	228	{
5b330a2d UD	229	do_test (0, 0, 8 << i, SMALL_CHAR);
5b330a2d UD	230	do_test (8 - i, 2 * i, 8 << i, SMALL_CHAR);
58ef9ef7 RM	231	}
	232
	233	for (i = 1; i < 8; ++i)
	234	{
5b330a2d UD	235	do_test (i, 2 * i, 8 << i, SMALL_CHAR);
	236	do_test (2 * i, i, 8 << i, BIG_CHAR);
	237	do_test (i, i, 8 << i, SMALL_CHAR);
	238	do_test (i, i, 8 << i, BIG_CHAR);
58ef9ef7 RM	239	}
	240
	241	do_random_tests ();
	242	return ret;
	243	}
	244
	245	#include "../test-skeleton.c"