criu/test/zdtm/static/sockets02.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

65 lines
1.3 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <sys/un.h>
#include <sys/stat.h>
#include <limits.h>
#include <fcntl.h>
#include "zdtmtst.h"
const char *test_doc = "Test semi-closed unix stream connection\n";
const char *test_author = "Pavel Emelyanov <xemul@parallels.com>\n";
int main(int argc, char *argv[])
{
int ssk_pair[2], ret;
char aux, data;
test_init(argc, argv);
data = (char)lrand48();
if (socketpair(AF_UNIX, SOCK_STREAM, 0, ssk_pair) == -1) {
fail("socketpair\n");
exit(1);
}
if (write(ssk_pair[1], &data, sizeof(data)) != sizeof(data)) {
fail("write\n");
exit(1);
}
close(ssk_pair[1]);
test_daemon();
test_waitsig();
ret = read(ssk_pair[0], &aux, sizeof(aux));
if (ret != sizeof(data) && aux != data) {
fail("Data loss (write %d, read %d)", data, aux);
return 1;
}
errno = 0;
ret = read(ssk_pair[0], &aux, sizeof(aux));
if (ret != 0 || errno != 0) {
fail("Opened end in wrong state (%d/%d)", ret, errno);
return 0;
}
errno = 0;
ret = read(ssk_pair[1], &aux, sizeof(aux));
if (ret != -1 || errno != EBADF) {
fail("Closed end in wrong state (%d/%d)", ret, errno);
return 0;
}
pass();
return 0;
}