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glibc/rt/tst-mqueue2.c
Siddhesh Poyarekar 30891f35fa Remove "Contributed by" lines 
We stopped adding "Contributed by" or similar lines in sources in 2012
in favour of git logs and keeping the Contributors section of the
glibc manual up to date.  Removing these lines makes the license
header a bit more consistent across files and also removes the
possibility of error in attribution when license blocks or files are
copied across since the contributed-by lines don't actually reflect
reality in those cases.

Move all "Contributed by" and similar lines (Written by, Test by,
etc.) into a new file CONTRIBUTED-BY to retain record of these
contributions.  These contributors are also mentioned in
manual/contrib.texi, so we just maintain this additional record as a
courtesy to the earlier developers.

The following scripts were used to filter a list of files to edit in
place and to clean up the CONTRIBUTED-BY file respectively.  These
were not added to the glibc sources because they're not expected to be
of any use in future given that this is a one time task:

https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc
https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-09-03 22:06:44 +05:30

475 lines
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/* Test message queue passing.
Copyright (C) 2004-2021 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/>. */
#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 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"
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