/* Test message queue passing.
Copyright (C) 2004-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
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 <fcntl.h>
#include <mqueue.h>
#include <limits.h>
#include <signal.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include "tst-mqueue.h"
#define TIMEOUT 4
#define TEST_FUNCTION do_test ()
static int
do_test (void)
{
int result = 0;
char name[sizeof "/tst-mqueue4-" + sizeof (pid_t) * 3 + NAME_MAX];
char *p;
p = name + snprintf (name, sizeof (name), "/tst-mqueue4-%u", getpid ());
struct mq_attr attr = { .mq_maxmsg = 2, .mq_msgsize = 2 };
mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
if (q == (mqd_t) -1)
{
printf ("mq_open failed with: %m\n");
return result;
}
else
add_temp_mq (name);
*p = '.';
memset (p + 1, 'x', NAME_MAX + 1 - (p - name));
name[NAME_MAX + 1] = '\0';
mqd_t q2 = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
if (q2 == (mqd_t) -1)
{
printf ("mq_open with NAME_MAX long name compoment failed with: %m\n");
result = 1;
}
if (mq_unlink (name) != 0)
{
printf ("mq_unlink failed: %m\n");
result = 1;
}
if (mq_close (q2) != 0)
{
printf ("mq_close failed: %m\n");
result = 1;
}
name[NAME_MAX + 1] = 'x';
name[NAME_MAX + 2] = '\0';
q2 = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
if (q2 != (mqd_t) -1)
{
puts ("mq_open with too long name component unexpectedly succeeded");
mq_unlink (name);
mq_close (q2);
result = 1;
}
else if (errno != ENAMETOOLONG)
{
printf ("mq_open with too long name component did not fail with "
"ENAMETOOLONG: %m\n");
result = 1;
}
if (mq_unlink (name) == 0)
{
puts ("mq_unlink with too long name component unexpectedly succeeded");
result = 1;
}
else if (errno != ENAMETOOLONG)
{
printf ("mq_unlink with too long name component did not fail with "
"ENAMETOOLONG: %m\n");
result = 1;
}
*p = '\0';
attr.mq_maxmsg = 1;
attr.mq_msgsize = 3;
q2 = mq_open (name, O_CREAT | O_RDWR, 0600, &attr);
if (q2 == (mqd_t) -1)
{
printf ("mq_open without O_EXCL failed with %m\n");
result = 1;
}
char buf[3];
strcpy (buf, "jk");
if (mq_send (q, buf, 2, 4) != 0)
{
printf ("mq_send failed: %m\n");
result = 1;
}
if (mq_send (q, buf + 1, 1, 5) != 0)
{
printf ("mq_send failed: %m\n");
result = 1;
}
if (mq_getattr (q2, &attr) != 0)
{
printf ("mq_getattr failed: %m\n");
result = 1;
}
if ((attr.mq_flags & O_NONBLOCK)
|| attr.mq_maxmsg != 2
|| attr.mq_msgsize != 2
|| attr.mq_curmsgs != 2)
{
printf ("mq_getattr returned unexpected { .mq_flags = %jd,\n"
".mq_maxmsg = %jd, .mq_msgsize = %jd, .mq_curmsgs = %jd }\n",
(intmax_t) attr.mq_flags, (intmax_t) attr.mq_maxmsg,
(intmax_t) attr.mq_msgsize, (intmax_t) attr.mq_curmsgs);
result = 1;
}
struct timespec ts;
if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
++ts.tv_sec;
else
{
ts.tv_sec = time (NULL) + 1;
ts.tv_nsec = 0;
}
if (mq_timedsend (q2, buf, 1, 1, &ts) == 0)
{
puts ("mq_timedsend unexpectedly succeeded");
result = 1;
}
else if (errno != ETIMEDOUT)
{
printf ("mq_timedsend did not fail with ETIMEDOUT: %m\n");
result = 1;
}
if (mq_close (q2) != 0)
{
printf ("mq_close failed: %m\n");
result = 1;
}
q2 = mq_open (name, O_RDONLY, 0600);
if (q2 == (mqd_t) -1)
{
printf ("mq_open without O_CREAT failed with %m\n");
result = 1;
}
mqd_t q3 = mq_open (name, O_RDONLY, 0600);
if (q3 == (mqd_t) -1)
{
printf ("mq_open without O_CREAT failed with %m\n");
result = 1;
}
memset (buf, ' ', sizeof (buf));
unsigned int prio;
ssize_t rets = mq_receive (q2, buf, 2, &prio);
if (rets != 1)
{
if (rets == -1)
printf ("mq_receive failed with: %m\n");
else
printf ("mq_receive returned %zd != 1\n", rets);
result = 1;
}
else if (prio != 5 || memcmp (buf, "k ", 3) != 0)
{
printf ("mq_receive returned prio %u (2) buf \"%c%c%c\" (\"k \")\n",
prio, buf[0], buf[1], buf[2]);
result = 1;
}
if (mq_getattr (q3, &attr) != 0)
{
printf ("mq_getattr failed: %m\n");
result = 1;
}
if ((attr.mq_flags & O_NONBLOCK)
|| attr.mq_maxmsg != 2
|| attr.mq_msgsize != 2
|| attr.mq_curmsgs != 1)
{
printf ("mq_getattr returned unexpected { .mq_flags = %jd,\n"
".mq_maxmsg = %jd, .mq_msgsize = %jd, .mq_curmsgs = %jd }\n",
(intmax_t) attr.mq_flags, (intmax_t) attr.mq_maxmsg,
(intmax_t) attr.mq_msgsize, (intmax_t) attr.mq_curmsgs);
result = 1;
}
rets = mq_receive (q3, buf, 2, NULL);
if (rets != 2)
{
if (rets == -1)
printf ("mq_receive failed with: %m\n");
else
printf ("mq_receive returned %zd != 2\n", rets);
result = 1;
}
else if (memcmp (buf, "jk ", 3) != 0)
{
printf ("mq_receive returned buf \"%c%c%c\" != \"jk \"\n",
buf[0], buf[1], buf[2]);
result = 1;
}
if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
++ts.tv_sec;
else
{
ts.tv_sec = time (NULL) + 1;
ts.tv_nsec = 0;
}
if (mq_timedreceive (q2, buf, 2, NULL, &ts) != -1)
{
puts ("mq_timedreceive on empty queue unexpectedly succeeded");
result = 1;
}
else if (errno != ETIMEDOUT)
{
printf ("mq_timedreceive on empty queue did not fail with "
"ETIMEDOUT: %m\n");
result = 1;
}
if (mq_unlink (name) != 0)
{
printf ("mq_unlink failed: %m\n");
result = 1;
}
if (mq_close (q) != 0)
{
printf ("mq_close failed: %m\n");
result = 1;
}
if (mq_close (q2) != 0)
{
printf ("mq_close failed: %m\n");
result = 1;
}
if (mq_close (q3) != 0)
{
printf ("mq_close failed: %m\n");
result = 1;
}
return result;
}
#include "../test-skeleton.c"