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

/* Test strcat functions.
   Copyright (C) 1999-2022 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
   <https://www.gnu.org/licenses/>.  */

#define TEST_MAIN
#ifndef WIDE
# define TEST_NAME "strcat"
#else
# define TEST_NAME "wcscat"
#endif /* WIDE */
#include "test-string.h"

#ifndef WIDE
# define STRCAT strcat
# define CHAR char
# define UCHAR unsigned char
# define sfmt "s"
# define SIMPLE_STRCAT simple_strcat
# define STRLEN strlen
# define STRCMP strcmp
# define MEMSET memset
# define MEMCPY memcpy
# define MEMCMP memcmp
# define BIG_CHAR CHAR_MAX
# define SMALL_CHAR 127
#else
# include <wchar.h>
# define STRCAT wcscat
# define CHAR wchar_t
# define UCHAR wchar_t
# define sfmt "ls"
# define SIMPLE_STRCAT simple_wcscat
# define STRLEN wcslen
# define STRCMP wcscmp
# define MEMSET wmemset
# define MEMCPY wmemcpy
# define MEMCMP wmemcmp
# define BIG_CHAR WCHAR_MAX
# define SMALL_CHAR 1273
#endif /* WIDE */

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

IMPL (SIMPLE_STRCAT, 0)
IMPL (STRCAT, 1)

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

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

  if (STRCMP (dst + k, 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 len1, size_t len2, int max_char)
{
  size_t i;
  CHAR *s1, *s2;

  align1 &= 7;
  if ((align1 + len1) * sizeof (CHAR) >= page_size)
    return;

  align2 &= 7;
  if ((align2 + len1 + len2) * sizeof (CHAR) >= page_size)
    return;

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

  for (i = 0; i < len1; ++i)
    s1[i] = 32 + 23 * i % (max_char - 32);
  s1[len1] = '\0';

  for (i = 0; i < len2; i++)
    s2[i] = 32 + 23 * i % (max_char - 32);

  FOR_EACH_IMPL (impl, 0)
    {
      s2[len2] = '\0';
      do_one_test (impl, s2, s1);
    }
}

static void
do_random_tests (void)
{
  size_t i, j, n, align1, align2, len1, len2;
  UCHAR *p1 = (UCHAR *) (buf1 + page_size) - 512;
  UCHAR *p2 = (UCHAR *) (buf2 + page_size) - 512;
  UCHAR *p3 = (UCHAR *) buf1;
  UCHAR *res;

  for (n = 0; n < ITERATIONS; n++)
    {
      align1 = random () & 31;
      if (random () & 1)
	align2 = random () & 31;
      else
	align2 = align1 + (random () & 24);
      len1 = random () & 511;
      if (len1 + align2 > 512)
	len2 = random () & 7;
      else
	len2 = (512 - len1 - align2) * (random () & (1024 * 1024 - 1))
	       / (1024 * 1024);
      j = align1;
      if (align2 + len2 > j)
	j = align2 + len2;
      if (len1 + j >= 511)
	len1 = 510 - j - (random () & 7);
      if (len1 >= 512)
	len1 = 0;
      if (align1 + len1 < 512 - 8)
	{
	  j = 510 - align1 - len1 - (random () & 31);
	  if (j > 0 && j < 512)
	    align1 += j;
	}
      j = len1 + align1 + 64;
      if (j > 512)
	j = 512;
      for (i = 0; i < j; i++)
	{
	  if (i == len1 + align1)
	    p1[i] = 0;
	  else
	    {
	      p1[i] = random () & BIG_CHAR;
	      if (i >= align1 && i < len1 + align1 && !p1[i])
		p1[i] = (random () & SMALL_CHAR) + 3;
	    }
	}
      for (i = 0; i < len2; i++)
	{
	  p3[i] = random () & BIG_CHAR;
	  if (!p3[i])
	    p3[i] = (random () & SMALL_CHAR) + 3;
	}
      p3[len2] = 0;

      FOR_EACH_IMPL (impl, 1)
	{
	  MEMSET (p2 - 64, '\1', align2 + 64);
	  MEMSET (p2 + align2 + len2 + 1, '\1', 512 - align2 - len2 - 1);
	  MEMCPY (p2 + align2, p3, len2 + 1);
	  res = (UCHAR *) CALL (impl, (CHAR *) (p2 + align2),
				(CHAR *) (p1 + align1));
	  if (res != p2 + align2)
	    {
	      error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd %zd) %p != %p",
		     n, impl->name, align1, align2, len1, len2, res,
		     p2 + align2);
	      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, %zd)",
			 n, impl->name, align1, align2, len1, len2);
		  ret = 1;
		  break;
		}
	    }
	  if (MEMCMP (p2 + align2, p3, len2))
	    {
	      error (0, 0, "Iteration %zd - garbage in string before, %s (%zd, %zd, %zd, %zd)",
		     n, impl->name, align1, align2, len1, len2);
	      ret = 1;
	    }
	  for (j = align2 + len1 + len2 + 1; j < 512; ++j)
	    {
	      if (p2[j] != '\1')
		{
		  error (0, 0, "Iteration %zd - garbage after, %s (%zd, %zd, %zd, %zd)",
			 n, impl->name, align1, align2, len1, len2);
		  ret = 1;
		  break;
		}
	    }
	  if (MEMCMP (p1 + align1, p2 + align2 + len2, len1 + 1))
	    {
	      error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd, %zd)",
		     n, impl->name, align1, align2, len1, len2);
	      ret = 1;
	    }
	}
    }
}

int
test_main (void)
{
  size_t i;

  test_init ();

  printf ("%28s", "");
  FOR_EACH_IMPL (impl, 0)
    printf ("\t%s", impl->name);
  putchar ('\n');

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

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

  for (i = 1; i < 8; ++i)
    {
      do_test (i, 2 * i, 8 << i, 1, SMALL_CHAR);
      do_test (2 * i, i, 8 << i, 1, BIG_CHAR);
      do_test (i, i, 8 << i, 10, SMALL_CHAR);
      do_test (i, i, 8 << i, 10, BIG_CHAR);
    }

  do_random_tests ();
  return ret;
}

#include <support/test-driver.c>
Commit	Line	Data
d626a24f	1	/* Test strcat functions.
581c785b	2	Copyright (C) 1999-2022 Free Software Foundation, Inc.
58ef9ef7	3	This file is part of the GNU C Library.
58ef9ef7 RM	4
	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
59ba27a6	16	License along with the GNU C Library; if not, see
5a82c748	17	<https://www.gnu.org/licenses/>. */
58ef9ef7 RM	18
58ef9ef7 RM	19	#define TEST_MAIN
d626a24f SL	20	#ifndef WIDE
	21	# define TEST_NAME "strcat"
	22	#else
	23	# define TEST_NAME "wcscat"
	24	#endif /* WIDE */
58ef9ef7 RM	25	#include "test-string.h"
58ef9ef7 RM	26
d626a24f SL	27	#ifndef WIDE
	28	# define STRCAT strcat
	29	# define CHAR char
	30	# define UCHAR unsigned char
	31	# define sfmt "s"
	32	# define SIMPLE_STRCAT simple_strcat
	33	# define STRLEN strlen
	34	# define STRCMP strcmp
	35	# define MEMSET memset
	36	# define MEMCPY memcpy
	37	# define MEMCMP memcmp
	38	# define BIG_CHAR CHAR_MAX
	39	# define SMALL_CHAR 127
	40	#else
	41	# include <wchar.h>
	42	# define STRCAT wcscat
	43	# define CHAR wchar_t
	44	# define UCHAR wchar_t
	45	# define sfmt "ls"
	46	# define SIMPLE_STRCAT simple_wcscat
	47	# define STRLEN wcslen
	48	# define STRCMP wcscmp
	49	# define MEMSET wmemset
	50	# define MEMCPY wmemcpy
	51	# define MEMCMP wmemcmp
	52	# define BIG_CHAR WCHAR_MAX
	53	# define SMALL_CHAR 1273
	54	#endif /* WIDE */
58ef9ef7	55
d626a24f SL	56	typedef CHAR (proto_t) (CHAR , const CHAR );
d626a24f SL	57	CHAR SIMPLE_STRCAT (CHAR , const CHAR *);
58ef9ef7	58
d626a24f SL	59	IMPL (SIMPLE_STRCAT, 0)
	60	IMPL (STRCAT, 1)
	61
	62	CHAR *
	63	SIMPLE_STRCAT (CHAR dst, const CHAR src)
58ef9ef7	64	{
d626a24f	65	CHAR *ret = dst;
58ef9ef7 RM	66	while (*dst++ != '\0');
	67	--dst;
	68	while ((dst++ = src++) != '\0');
	69	return ret;
	70	}
	71
	72	static void
d626a24f	73	do_one_test (impl_t impl, CHAR dst, const CHAR *src)
58ef9ef7	74	{
d626a24f	75	size_t k = STRLEN (dst);
58ef9ef7 RM	76	if (CALL (impl, dst, src) != dst)
	77	{
	78	error (0, 0, "Wrong result in function %s %p %p", impl->name,
	79	CALL (impl, dst, src), dst);
	80	ret = 1;
	81	return;
	82	}
	83
d626a24f	84	if (STRCMP (dst + k, src) != 0)
58ef9ef7	85	{
d626a24f	86	error (0, 0, "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"",
58ef9ef7 RM	87	impl->name, dst, src);
	88	ret = 1;
	89	return;
	90	}
58ef9ef7 RM	91	}
	92
	93	static void
	94	do_test (size_t align1, size_t align2, size_t len1, size_t len2, int max_char)
	95	{
	96	size_t i;
d626a24f	97	CHAR s1, s2;
58ef9ef7 RM	98
58ef9ef7 RM	99	align1 &= 7;
d626a24f	100	if ((align1 + len1) * sizeof (CHAR) >= page_size)
58ef9ef7 RM	101	return;
	102
	103	align2 &= 7;
d626a24f	104	if ((align2 + len1 + len2) * sizeof (CHAR) >= page_size)
58ef9ef7 RM	105	return;
58ef9ef7 RM	106
d626a24f SL	107	s1 = (CHAR *) (buf1) + align1;
d626a24f SL	108	s2 = (CHAR *) (buf2) + align2;
58ef9ef7 RM	109
	110	for (i = 0; i < len1; ++i)
	111	s1[i] = 32 + 23 * i % (max_char - 32);
	112	s1[len1] = '\0';
	113
	114	for (i = 0; i < len2; i++)
	115	s2[i] = 32 + 23 * i % (max_char - 32);
	116
58ef9ef7 RM	117	FOR_EACH_IMPL (impl, 0)
	118	{
	119	s2[len2] = '\0';
	120	do_one_test (impl, s2, s1);
	121	}
58ef9ef7 RM	122	}
	123
	124	static void
	125	do_random_tests (void)
	126	{
	127	size_t i, j, n, align1, align2, len1, len2;
d626a24f SL	128	UCHAR p1 = (UCHAR ) (buf1 + page_size) - 512;
	129	UCHAR p2 = (UCHAR ) (buf2 + page_size) - 512;
	130	UCHAR p3 = (UCHAR ) buf1;
	131	UCHAR *res;
58ef9ef7 RM	132
	133	for (n = 0; n < ITERATIONS; n++)
	134	{
	135	align1 = random () & 31;
	136	if (random () & 1)
	137	align2 = random () & 31;
	138	else
	139	align2 = align1 + (random () & 24);
	140	len1 = random () & 511;
	141	if (len1 + align2 > 512)
	142	len2 = random () & 7;
	143	else
	144	len2 = (512 - len1 - align2) * (random () & (1024 * 1024 - 1))
	145	/ (1024 * 1024);
	146	j = align1;
	147	if (align2 + len2 > j)
	148	j = align2 + len2;
	149	if (len1 + j >= 511)
	150	len1 = 510 - j - (random () & 7);
	151	if (len1 >= 512)
	152	len1 = 0;
	153	if (align1 + len1 < 512 - 8)
	154	{
	155	j = 510 - align1 - len1 - (random () & 31);
	156	if (j > 0 && j < 512)
	157	align1 += j;
	158	}
	159	j = len1 + align1 + 64;
	160	if (j > 512)
	161	j = 512;
	162	for (i = 0; i < j; i++)
	163	{
	164	if (i == len1 + align1)
	165	p1[i] = 0;
	166	else
	167	{
d626a24f	168	p1[i] = random () & BIG_CHAR;
58ef9ef7	169	if (i >= align1 && i < len1 + align1 && !p1[i])
d626a24f	170	p1[i] = (random () & SMALL_CHAR) + 3;
58ef9ef7 RM	171	}
	172	}
	173	for (i = 0; i < len2; i++)
	174	{
d626a24f SL	175	p3[i] = random () & BIG_CHAR;
	176	if (!p3[i])
	177	p3[i] = (random () & SMALL_CHAR) + 3;
58ef9ef7	178	}
d626a24f	179	p3[len2] = 0;
58ef9ef7 RM	180
	181	FOR_EACH_IMPL (impl, 1)
	182	{
d626a24f SL	183	MEMSET (p2 - 64, '\1', align2 + 64);
	184	MEMSET (p2 + align2 + len2 + 1, '\1', 512 - align2 - len2 - 1);
	185	MEMCPY (p2 + align2, p3, len2 + 1);
	186	res = (UCHAR ) CALL (impl, (CHAR ) (p2 + align2),
	187	(CHAR *) (p1 + align1));
58ef9ef7 RM	188	if (res != p2 + align2)
	189	{
	190	error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd %zd) %p != %p",
	191	n, impl->name, align1, align2, len1, len2, res,
	192	p2 + align2);
	193	ret = 1;
	194	}
	195	for (j = 0; j < align2 + 64; ++j)
	196	{
	197	if (p2[j - 64] != '\1')
	198	{
	199	error (0, 0, "Iteration %zd - garbage before, %s (%zd, %zd, %zd, %zd)",
	200	n, impl->name, align1, align2, len1, len2);
	201	ret = 1;
	202	break;
	203	}
	204	}
d626a24f	205	if (MEMCMP (p2 + align2, p3, len2))
58ef9ef7 RM	206	{
	207	error (0, 0, "Iteration %zd - garbage in string before, %s (%zd, %zd, %zd, %zd)",
	208	n, impl->name, align1, align2, len1, len2);
	209	ret = 1;
	210	}
	211	for (j = align2 + len1 + len2 + 1; j < 512; ++j)
	212	{
	213	if (p2[j] != '\1')
	214	{
	215	error (0, 0, "Iteration %zd - garbage after, %s (%zd, %zd, %zd, %zd)",
	216	n, impl->name, align1, align2, len1, len2);
	217	ret = 1;
	218	break;
	219	}
	220	}
d626a24f	221	if (MEMCMP (p1 + align1, p2 + align2 + len2, len1 + 1))
58ef9ef7 RM	222	{
	223	error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd, %zd)",
	224	n, impl->name, align1, align2, len1, len2);
	225	ret = 1;
	226	}
	227	}
	228	}
	229	}
	230
	231	int
	232	test_main (void)
	233	{
	234	size_t i;
	235
	236	test_init ();
	237
	238	printf ("%28s", "");
	239	FOR_EACH_IMPL (impl, 0)
	240	printf ("\t%s", impl->name);
	241	putchar ('\n');
	242
	243	for (i = 0; i < 16; ++i)
	244	{
d626a24f SL	245	do_test (0, 0, i, i, SMALL_CHAR);
	246	do_test (0, 0, i, i, BIG_CHAR);
	247	do_test (0, i, i, i, SMALL_CHAR);
	248	do_test (i, 0, i, i, BIG_CHAR);
58ef9ef7 RM	249	}
	250
	251	for (i = 1; i < 8; ++i)
	252	{
d626a24f SL	253	do_test (0, 0, 8 << i, 8 << i, SMALL_CHAR);
	254	do_test (8 - i, 2 * i, 8 << i, 8 << i, SMALL_CHAR);
	255	do_test (0, 0, 8 << i, 2 << i, SMALL_CHAR);
	256	do_test (8 - i, 2 * i, 8 << i, 2 << i, SMALL_CHAR);
58ef9ef7 RM	257	}
	258
	259	for (i = 1; i < 8; ++i)
	260	{
d626a24f SL	261	do_test (i, 2 * i, 8 << i, 1, SMALL_CHAR);
	262	do_test (2 * i, i, 8 << i, 1, BIG_CHAR);
	263	do_test (i, i, 8 << i, 10, SMALL_CHAR);
	264	do_test (i, i, 8 << i, 10, BIG_CHAR);
58ef9ef7 RM	265	}
	266
	267	do_random_tests ();
	268	return ret;
	269	}
	270
fb82116f	271	#include <support/test-driver.c>