mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-08 22:30:07 +00:00
100 lines
2.2 KiB
C
100 lines
2.2 KiB
C
/* Test for SEM_VALUE_MAX overflow detection: BZ #18434.
|
|
Copyright (C) 2015-2017 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/>. */
|
|
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <semaphore.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
sem_t s;
|
|
|
|
if (sem_init (&s, 0, SEM_VALUE_MAX))
|
|
{
|
|
printf ("sem_init: %m\n");
|
|
return 1;
|
|
}
|
|
|
|
int result = 0;
|
|
|
|
int value = 0xdeadbeef;
|
|
if (sem_getvalue (&s, &value))
|
|
{
|
|
printf ("sem_getvalue: %m\n");
|
|
result = 1;
|
|
}
|
|
else
|
|
{
|
|
printf ("sem_getvalue after init: %d\n", value);
|
|
if (value != SEM_VALUE_MAX)
|
|
{
|
|
printf ("\tshould be %d\n", SEM_VALUE_MAX);
|
|
result = 1;
|
|
}
|
|
}
|
|
|
|
errno = 0;
|
|
if (sem_post(&s) == 0)
|
|
{
|
|
puts ("sem_post at SEM_VALUE_MAX succeeded!");
|
|
result = 1;
|
|
}
|
|
else
|
|
{
|
|
printf ("sem_post at SEM_VALUE_MAX: %m (%d)\n", errno);
|
|
if (errno != EOVERFLOW)
|
|
{
|
|
printf ("\tshould be %s (EOVERFLOW = %d)\n",
|
|
strerror (EOVERFLOW), EOVERFLOW);
|
|
result = 1;
|
|
}
|
|
}
|
|
|
|
value = 0xbad1d00d;
|
|
if (sem_getvalue (&s, &value))
|
|
{
|
|
printf ("sem_getvalue: %m\n");
|
|
result = 1;
|
|
}
|
|
else
|
|
{
|
|
printf ("sem_getvalue after post: %d\n", value);
|
|
if (value != SEM_VALUE_MAX)
|
|
{
|
|
printf ("\tshould be %d\n", SEM_VALUE_MAX);
|
|
result = 1;
|
|
}
|
|
}
|
|
|
|
if (sem_destroy (&s))
|
|
{
|
|
printf ("sem_destroy: %m\n");
|
|
result = 1;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|