/* 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 <signal.h>
#include <stdio.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"
static void
alrm_handler (int sig)
{
}
#define TIMEOUT 10
#define TEST_FUNCTION do_test ()
static int
do_test (void)
{
int result = 0;
char name[sizeof "/tst-mqueue2-" + sizeof (pid_t) * 3];
snprintf (name, sizeof (name), "/tst-mqueue2-%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);
mqd_t q2 = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
if (q2 != (mqd_t) -1)
{
puts ("mq_open with O_EXCL unexpectedly succeeded");
result = 1;
}
else if (errno != EEXIST)
{
printf ("mq_open did not fail with EEXIST: %m\n");
result = 1;
}
char name2[sizeof "/tst-mqueue2-2-" + sizeof (pid_t) * 3];
snprintf (name2, sizeof (name2), "/tst-mqueue2-2-%u", getpid ());
attr.mq_maxmsg = -2;
q2 = mq_open (name2, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
if (q2 != (mqd_t) -1)
{
puts ("mq_open with invalid mq_maxmsg unexpectedly succeeded");
add_temp_mq (name2);
result = 1;
}
else if (errno != EINVAL)
{
printf ("mq_open with invalid mq_maxmsg did not fail with "
"EINVAL: %m\n");
result = 1;
}
attr.mq_maxmsg = 2;
attr.mq_msgsize = -56;
q2 = mq_open (name2, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
if (q2 != (mqd_t) -1)
{
puts ("mq_open with invalid mq_msgsize unexpectedly succeeded");
add_temp_mq (name2);
result = 1;
}
else if (errno != EINVAL)
{
printf ("mq_open with invalid mq_msgsize did not fail with "
"EINVAL: %m\n");
result = 1;
}
char buf[3];
struct timespec ts;
if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
ts.tv_sec += 10;
else
{
ts.tv_sec = time (NULL) + 10;
ts.tv_nsec = 0;
}
if (mq_timedreceive (q, buf, 1, NULL, &ts) == 0)
{
puts ("mq_timedreceive with too small msg_len did not fail");
result = 1;
}
else if (errno != EMSGSIZE)
{
printf ("mq_timedreceive with too small msg_len did not fail with "
"EMSGSIZE: %m\n");
result = 1;
}
ts.tv_nsec = -1;
if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
{
puts ("mq_timedreceive with negative tv_nsec did not fail");
result = 1;
}
else if (errno != EINVAL)
{
printf ("mq_timedreceive with negative tv_nsec did not fail with "
"EINVAL: %m\n");
result = 1;
}
ts.tv_nsec = 1000000000;
if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
{
puts ("mq_timedreceive with tv_nsec >= 1000000000 did not fail");
result = 1;
}
else if (errno != EINVAL)
{
printf ("mq_timedreceive with tv_nsec >= 1000000000 did not fail with "
"EINVAL: %m\n");
result = 1;
}
struct sigaction sa = { .sa_handler = alrm_handler, .sa_flags = 0 };
sigemptyset (&sa.sa_mask);
sigaction (SIGALRM, &sa, NULL);
struct itimerval it = { .it_value = { .tv_sec = 1 } };
setitimer (ITIMER_REAL, &it, NULL);
if (mq_receive (q, buf, 2, NULL) == 0)
{
puts ("mq_receive on empty queue did not block");
result = 1;
}
else if (errno != EINTR)
{
printf ("mq_receive on empty queue did not fail with EINTR: %m\n");
result = 1;
}
setitimer (ITIMER_REAL, &it, NULL);
ts.tv_nsec = 0;
if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
{
puts ("mq_timedreceive on empty queue did not block");
result = 1;
}
else if (errno != EINTR)
{
printf ("mq_timedreceive on empty queue did not fail with EINTR: %m\n");
result = 1;
}
buf[0] = '6';
buf[1] = '7';
if (mq_send (q, buf, 2, 3) != 0
|| (buf[0] = '8', mq_send (q, buf, 1, 4) != 0))
{
printf ("mq_send failed: %m\n");
result = 1;
}
memset (buf, ' ', sizeof (buf));
unsigned int prio;
ssize_t rets = mq_receive (q, buf, 3, &prio);
if (rets != 1)
{
if (rets == -1)
printf ("mq_receive failed: %m\n");
else
printf ("mq_receive returned %zd != 1\n", rets);
result = 1;
}
else if (prio != 4 || memcmp (buf, "8 ", 3) != 0)
{
printf ("mq_receive prio %u (4) buf \"%c%c%c\" (\"8 \")\n",
prio, buf[0], buf[1], buf[2]);
result = 1;
}
rets = mq_receive (q, buf, 2, NULL);
if (rets != 2)
{
if (rets == -1)
printf ("mq_receive failed: %m\n");
else
printf ("mq_receive returned %zd != 2\n", rets);
result = 1;
}
else if (memcmp (buf, "67 ", 3) != 0)
{
printf ("mq_receive buf \"%c%c%c\" != \"67 \"\n",
buf[0], buf[1], buf[2]);
result = 1;
}
buf[0] = '2';
buf[1] = '1';
if (clock_gettime (CLOCK_REALTIME, &ts) != 0)
ts.tv_sec = time (NULL);
ts.tv_nsec = -1000000001;
if ((mq_timedsend (q, buf, 2, 5, &ts) != 0
&& (errno != EINVAL || mq_send (q, buf, 2, 5) != 0))
|| (buf[0] = '3', ts.tv_nsec = -ts.tv_nsec,
(mq_timedsend (q, buf, 1, 4, &ts) != 0
&& (errno != EINVAL || mq_send (q, buf, 1, 4) != 0))))
{
printf ("mq_timedsend failed: %m\n");
result = 1;
}
buf[0] = '-';
ts.tv_nsec = 1000000001;
if (mq_timedsend (q, buf, 1, 6, &ts) == 0)
{
puts ("mq_timedsend with tv_nsec >= 1000000000 did not fail");
result = 1;
}
else if (errno != EINVAL)
{
printf ("mq_timedsend with tv_nsec >= 1000000000 did not fail with "
"EINVAL: %m\n");
result = 1;
}
ts.tv_nsec = -2;
if (mq_timedsend (q, buf, 1, 6, &ts) == 0)
{
puts ("mq_timedsend with negative tv_nsec did not fail");
result = 1;
}
else if (errno != EINVAL)
{
printf ("mq_timedsend with megatove tv_nsec did not fail with "
"EINVAL: %m\n");
result = 1;
}
setitimer (ITIMER_REAL, &it, NULL);
if (mq_send (q, buf, 2, 8) == 0)
{
puts ("mq_send on full queue did not block");
result = 1;
}
else if (errno != EINTR)
{
printf ("mq_send on full queue did not fail with EINTR: %m\n");
result = 1;
}
setitimer (ITIMER_REAL, &it, NULL);
ts.tv_sec += 10;
ts.tv_nsec = 0;
if (mq_timedsend (q, buf, 2, 7, &ts) == 0)
{
puts ("mq_timedsend on full queue did not block");
result = 1;
}
else if (errno != EINTR)
{
printf ("mq_timedsend on full queue did not fail with EINTR: %m\n");
result = 1;
}
memset (buf, ' ', sizeof (buf));
if (clock_gettime (CLOCK_REALTIME, &ts) != 0)
ts.tv_sec = time (NULL);
ts.tv_nsec = -1000000001;
rets = mq_timedreceive (q, buf, 2, &prio, &ts);
if (rets == -1 && errno == EINVAL)
rets = mq_receive (q, buf, 2, &prio);
if (rets != 2)
{
if (rets == -1)
printf ("mq_timedreceive failed: %m\n");
else
printf ("mq_timedreceive returned %zd != 2\n", rets);
result = 1;
}
else if (prio != 5 || memcmp (buf, "21 ", 3) != 0)
{
printf ("mq_timedreceive prio %u (5) buf \"%c%c%c\" (\"21 \")\n",
prio, buf[0], buf[1], buf[2]);
result = 1;
}
if (mq_receive (q, buf, 1, NULL) == 0)
{
puts ("mq_receive with too small msg_len did not fail");
result = 1;
}
else if (errno != EMSGSIZE)
{
printf ("mq_receive with too small msg_len did not fail with "
"EMSGSIZE: %m\n");
result = 1;
}
ts.tv_nsec = -ts.tv_nsec;
rets = mq_timedreceive (q, buf, 2, NULL, &ts);
if (rets == -1 && errno == EINVAL)
rets = mq_receive (q, buf, 2, NULL);
if (rets != 1)
{
if (rets == -1)
printf ("mq_timedreceive failed: %m\n");
else
printf ("mq_timedreceive returned %zd != 1\n", rets);
result = 1;
}
else if (memcmp (buf, "31 ", 3) != 0)
{
printf ("mq_timedreceive buf \"%c%c%c\" != \"31 \"\n",
buf[0], buf[1], buf[2]);
result = 1;
}
if (mq_send (q, "", 0, 2) != 0)
{
printf ("mq_send with msg_len 0 failed: %m\n");
result = 1;
}
rets = mq_receive (q, buf, 2, &prio);
if (rets)
{
if (rets == -1)
printf ("mq_receive failed: %m\n");
else
printf ("mq_receive returned %zd != 0\n", rets);
result = 1;
}
long mq_prio_max = sysconf (_SC_MQ_PRIO_MAX);
if (mq_prio_max > 0 && (unsigned int) mq_prio_max == mq_prio_max)
{
if (mq_send (q, buf, 1, mq_prio_max) == 0)
{
puts ("mq_send with MQ_PRIO_MAX priority unpexpectedly succeeded");
result = 1;
}
else if (errno != EINVAL)
{
printf ("mq_send with MQ_PRIO_MAX priority did not fail with "
"EINVAL: %m\n");
result = 1;
}
if (mq_send (q, buf, 1, mq_prio_max - 1) != 0)
{
printf ("mq_send with MQ_PRIO_MAX-1 priority failed: %m\n");
result = 1;
}
}
if (mq_unlink (name) != 0)
{
printf ("mq_unlink failed: %m\n");
result = 1;
}
q2 = mq_open (name, O_RDWR);
if (q2 != (mqd_t) -1)
{
printf ("mq_open of unlinked %s without O_CREAT unexpectedly"
"succeeded\n", name);
result = 1;
}
else if (errno != ENOENT)
{
printf ("mq_open of unlinked %s without O_CREAT did not fail with "
"ENOENT: %m\n", name);
result = 1;
}
if (mq_close (q) != 0)
{
printf ("mq_close in parent failed: %m\n");
result = 1;
}
if (mq_receive (q, buf, 2, NULL) == 0)
{
puts ("mq_receive on invalid mqd_t did not fail");
result = 1;
}
else if (errno != EBADF)
{
printf ("mq_receive on invalid mqd_t did not fail with EBADF: %m\n");
result = 1;
}
if (mq_send (q, buf, 1, 2) == 0)
{
puts ("mq_send on invalid mqd_t did not fail");
result = 1;
}
else if (errno != EBADF)
{
printf ("mq_send on invalid mqd_t did not fail with EBADF: %m\n");
result = 1;
}
if (mq_getattr (q, &attr) == 0)
{
puts ("mq_getattr on invalid mqd_t did not fail");
result = 1;
}
else if (errno != EBADF)
{
printf ("mq_getattr on invalid mqd_t did not fail with EBADF: %m\n");
result = 1;
}
memset (&attr, 0, sizeof (attr));
if (mq_setattr (q, &attr, NULL) == 0)
{
puts ("mq_setattr on invalid mqd_t did not fail");
result = 1;
}
else if (errno != EBADF)
{
printf ("mq_setattr on invalid mqd_t did not fail with EBADF: %m\n");
result = 1;
}
if (mq_unlink ("/tst-mqueue2-which-should-never-exist") != -1)
{
puts ("mq_unlink of non-existant message queue unexpectedly succeeded");
result = 1;
}
else if (errno != ENOENT)
{
printf ("mq_unlink of non-existant message queue did not fail with "
"ENOENT: %m\n");
result = 1;
}
return result;
}
#include "../test-skeleton.c"