[thirdparty/glibc.git] / malloc / tst-mcheck.c

/* Copyright (C) 2005-2017 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Jakub Jelinek <jakub@redhat.com>, 2005.

   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 <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <libc-diag.h>

static int errors = 0;

static void
merror (const char *msg)
{
  ++errors;
  printf ("Error: %s\n", msg);
}

static int
do_test (void)
{
  void *p, *q;

  errno = 0;

  DIAG_PUSH_NEEDS_COMMENT;
#if __GNUC_PREREQ (7, 0)
  /* GCC 7 warns about too-large allocations; here we want to test
     that they fail.  */
  DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
#endif
  p = malloc (-1);
  DIAG_POP_NEEDS_COMMENT;

  if (p != NULL)
    merror ("malloc (-1) succeeded.");
  else if (errno != ENOMEM)
    merror ("errno is not set correctly.");

  p = malloc (10);
  if (p == NULL)
    merror ("malloc (10) failed.");

  p = realloc (p, 0);
  if (p != NULL)
    merror ("realloc (p, 0) failed.");

  p = malloc (0);
  if (p == NULL)
    merror ("malloc (0) failed.");

  p = realloc (p, 0);
  if (p != NULL)
    merror ("realloc (p, 0) failed.");

  q = malloc (256);
  if (q == NULL)
    merror ("malloc (256) failed.");

  p = malloc (512);
  if (p == NULL)
    merror ("malloc (512) failed.");

  DIAG_PUSH_NEEDS_COMMENT;
#if __GNUC_PREREQ (7, 0)
  /* GCC 7 warns about too-large allocations; here we want to test
     that they fail.  */
  DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
#endif
  if (realloc (p, -256) != NULL)
    merror ("realloc (p, -256) succeeded.");
  else if (errno != ENOMEM)
    merror ("errno is not set correctly.");
  DIAG_POP_NEEDS_COMMENT;

  free (p);

  p = malloc (512);
  if (p == NULL)
    merror ("malloc (512) failed.");

  DIAG_PUSH_NEEDS_COMMENT;
#if __GNUC_PREREQ (7, 0)
  /* GCC 7 warns about too-large allocations; here we want to test
     that they fail.  */
  DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
#endif
  if (realloc (p, -1) != NULL)
    merror ("realloc (p, -1) succeeded.");
  else if (errno != ENOMEM)
    merror ("errno is not set correctly.");
  DIAG_POP_NEEDS_COMMENT;

  free (p);
  free (q);

  return errors != 0;
}

#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
Commit	Line	Data
bfff8b1b	1	/* Copyright (C) 2005-2017 Free Software Foundation, Inc.
bfc832cc UD	2	This file is part of the GNU C Library.
	3	Contributed by Jakub Jelinek <jakub@redhat.com>, 2005.
	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 PE	16	License along with the GNU C Library; if not, see
59ba27a6 PE	17	<http://www.gnu.org/licenses/>. */
bfc832cc UD	18
	19	#include <errno.h>
	20	#include <stdio.h>
	21	#include <stdlib.h>
e15f7de6	22	#include <libc-diag.h>
bfc832cc UD	23
	24	static int errors = 0;
	25
	26	static void
	27	merror (const char *msg)
	28	{
	29	++errors;
	30	printf ("Error: %s\n", msg);
	31	}
	32
29955b5d AS	33	static int
29955b5d AS	34	do_test (void)
bfc832cc UD	35	{
	36	void p, q;
	37
	38	errno = 0;
	39
3d7229c2 JM	40	DIAG_PUSH_NEEDS_COMMENT;
	41	#if __GNUC_PREREQ (7, 0)
	42	/* GCC 7 warns about too-large allocations; here we want to test
	43	that they fail. */
	44	DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
	45	#endif
bfc832cc	46	p = malloc (-1);
3d7229c2	47	DIAG_POP_NEEDS_COMMENT;
bfc832cc UD	48
	49	if (p != NULL)
	50	merror ("malloc (-1) succeeded.");
	51	else if (errno != ENOMEM)
	52	merror ("errno is not set correctly.");
	53
	54	p = malloc (10);
	55	if (p == NULL)
	56	merror ("malloc (10) failed.");
	57
	58	p = realloc (p, 0);
	59	if (p != NULL)
	60	merror ("realloc (p, 0) failed.");
	61
	62	p = malloc (0);
	63	if (p == NULL)
	64	merror ("malloc (0) failed.");
	65
	66	p = realloc (p, 0);
	67	if (p != NULL)
	68	merror ("realloc (p, 0) failed.");
	69
	70	q = malloc (256);
	71	if (q == NULL)
	72	merror ("malloc (256) failed.");
	73
	74	p = malloc (512);
	75	if (p == NULL)
	76	merror ("malloc (512) failed.");
	77
3d7229c2 JM	78	DIAG_PUSH_NEEDS_COMMENT;
	79	#if __GNUC_PREREQ (7, 0)
	80	/* GCC 7 warns about too-large allocations; here we want to test
	81	that they fail. */
	82	DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
	83	#endif
bfc832cc UD	84	if (realloc (p, -256) != NULL)
	85	merror ("realloc (p, -256) succeeded.");
	86	else if (errno != ENOMEM)
	87	merror ("errno is not set correctly.");
3d7229c2	88	DIAG_POP_NEEDS_COMMENT;
bfc832cc UD	89
	90	free (p);
	91
	92	p = malloc (512);
	93	if (p == NULL)
	94	merror ("malloc (512) failed.");
	95
3d7229c2 JM	96	DIAG_PUSH_NEEDS_COMMENT;
	97	#if __GNUC_PREREQ (7, 0)
	98	/* GCC 7 warns about too-large allocations; here we want to test
	99	that they fail. */
	100	DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
	101	#endif
bfc832cc UD	102	if (realloc (p, -1) != NULL)
	103	merror ("realloc (p, -1) succeeded.");
	104	else if (errno != ENOMEM)
	105	merror ("errno is not set correctly.");
3d7229c2	106	DIAG_POP_NEEDS_COMMENT;
bfc832cc UD	107
	108	free (p);
	109	free (q);
	110
	111	return errors != 0;
	112	}
29955b5d AS	113
	114	#define TEST_FUNCTION do_test ()
	115	#include "../test-skeleton.c"