criu/test/zdtm/static/msgque.c
Dmitry Safonov 3bdaf5a9d8 zdtm: rely on -D_GNU_SOURCE passed from Makefiles
After the commit
  02c763939c10 ("test/zdtm: unify common code")

CFLAGS with -D_GNU_SOURCE defined in the top Makefile
are being passed to tests Makefiles.
As _GNU_SOURCE is also defined by tests, that resulted in
zdtm tests build failures:

  make[2]: Entering directory `/home/criu/test/zdtm/lib'
   CC        test.o
  test.c:1:0: error: "_GNU_SOURCE" redefined [-Werror]
   #define _GNU_SOURCE
   ^
  <command-line>:0:0: note: this is the location of the previous definition
  cc1: all warnings being treated as errors
  make[2]: *** [test.o] Error 1

However, we didn't catch this in time by Travis-CI, as zdtm.py doesn't
do `make zdtm`, rather it does `make -C test/zdtm/{lib,static,transition}`.
By calling middle makefile this way, it doesn't have _GNU_SOURCE in
CFLAGS from top-Makefile.

I think the right thing to do here - is following CRIU's way:
rely on definition of _GNU_SOURCE by Makefiles.

This patch is almost fully generated with
  find test/zdtm/ -name '*.c' -type f					\
     -exec sed -i '/define _GNU_SOURCE/{n;/^$/d;}' '{}' \;		\
     -exec sed -i '/define _GNU_SOURCE/d' '{}' \;

With an exception for adding -D_GNU_SOURCE in tests Makefile.inc for
keeping the same behaviour for zdtm.py.
Also changed utsname.c to use utsname::domainname, rather private
utsname::__domainname, as now it's uncovered (from sys/utsname.h):
> struct utsname
>  {
...
> # ifdef __USE_GNU
>     char domainname[_UTSNAME_DOMAIN_LENGTH];
> # else
>     char __domainname[_UTSNAME_DOMAIN_LENGTH];
> # endif

Reported-by: Adrian Reber <areber@redhat.com>
Cc: Kir Kolyshkin <kir@openvz.org>
Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
2017-04-11 09:01:08 +03:00

137 lines
3 KiB
C

#include <sched.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/sem.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <signal.h>
#include <errno.h>
#include "zdtmtst.h"
const char *test_doc="Tests sysv5 msg queues supporting by checkpointing";
const char *test_author="Stanislav Kinsbursky <skinsbursky@openvz.org>";
struct msg1 {
long mtype;
char mtext[30];
};
#define TEST_STRING "Test sysv5 msg"
#define MSG_TYPE 1
#define ANOTHER_TEST_STRING "Yet another test sysv5 msg"
#define ANOTHER_MSG_TYPE 26538
int main(int argc, char **argv)
{
key_t key;
int msg, pid;
struct msg1 msgbuf;
int chret;
test_init(argc, argv);
key = ftok(argv[0], 822155650);
if (key == -1) {
pr_perror("Can't make key");
exit(1);
}
pid = test_fork();
if (pid < 0) {
pr_perror("Can't fork");
exit(1);
}
msg = msgget(key, IPC_CREAT | IPC_EXCL | 0666);
if (msg == -1) {
msg = msgget(key, 0666);
if (msg == -1) {
pr_perror("Can't get queue");
goto err_kill;
}
}
if (pid == 0) {
test_waitsig();
if (msgrcv(msg, &msgbuf, sizeof(TEST_STRING), MSG_TYPE, IPC_NOWAIT) == -1) {
fail("Child: msgrcv failed (%m)");
return -errno;
}
if (strncmp(TEST_STRING, msgbuf.mtext, sizeof(TEST_STRING))) {
fail("Child: the source and received strings aren't equal");
return -errno;
}
test_msg("Child: received %s\n", msgbuf.mtext);
msgbuf.mtype = ANOTHER_MSG_TYPE;
memcpy(msgbuf.mtext, ANOTHER_TEST_STRING, sizeof(ANOTHER_TEST_STRING));
if (msgsnd(msg, &msgbuf, sizeof(ANOTHER_TEST_STRING), IPC_NOWAIT) != 0) {
fail("Child: msgsnd failed (%m)");
return -errno;
};
pass();
return 0;
} else {
msgbuf.mtype = MSG_TYPE;
memcpy(msgbuf.mtext, TEST_STRING, sizeof(TEST_STRING));
if (msgsnd(msg, &msgbuf, sizeof(TEST_STRING), IPC_NOWAIT) != 0) {
fail("Parent: msgsnd failed (%m)");
goto err_kill;
};
msgbuf.mtype = ANOTHER_MSG_TYPE;
memcpy(msgbuf.mtext, ANOTHER_TEST_STRING, sizeof(ANOTHER_TEST_STRING));
if (msgsnd(msg, &msgbuf, sizeof(ANOTHER_TEST_STRING), IPC_NOWAIT) != 0) {
fail("child: msgsnd (2) failed (%m)");
return -errno;
};
test_daemon();
test_waitsig();
kill(pid, SIGTERM);
wait(&chret);
chret = WEXITSTATUS(chret);
if (chret) {
fail("Parent: child exited with non-zero code %d (%s)\n",
chret, strerror(chret));
goto out;
}
if (msgrcv(msg, &msgbuf, sizeof(ANOTHER_TEST_STRING), ANOTHER_MSG_TYPE, IPC_NOWAIT) == -1) {
fail("Parent: msgrcv failed (%m)");
goto err;
}
if (strncmp(ANOTHER_TEST_STRING, msgbuf.mtext, sizeof(ANOTHER_TEST_STRING))) {
fail("Parent: the source and received strings aren't equal");
goto err;
}
test_msg("Parent: received %s\n", msgbuf.mtext);
pass();
}
out:
if (msgctl(msg, IPC_RMID, 0)) {
fail("Failed to destroy message queue: %d\n", -errno);
return -errno;
}
return chret;
err_kill:
kill(pid, SIGKILL);
wait(NULL);
err:
chret = -errno;
goto out;
}