[CRIU] [PATCH 3/4] test: poll -- Use gettimeofday syscall directly

[Cyrill Gorcunov]

The gettimeofday uses /etc/localtime (thanks avagin@
for the hint) which is not present in namespace tests.
So lets use syscall directly and make test pass in
namespace environment as well.

Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>
---
 test/zdtm/live/static/poll.c | 24 +++++++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

diff --git a/test/zdtm/live/static/poll.c b/test/zdtm/live/static/poll.c
index 85f545593b6e..db4b427ce3e2 100644
--- a/test/zdtm/live/static/poll.c
+++ b/test/zdtm/live/static/poll.c
@@ -19,6 +19,24 @@
 const char *test_doc	= "Check poll() timeouts";
 const char *test_author	= "Cyrill Gorcunov <gorcunov at parallels.com>";
 
+#ifdef __x86_64__
+#define __NR_gettimeofday 96
+#else
+#define __NR_gettimeofday 78
+#endif
+
+static int sys_gettimeofday(struct timeval *tv, struct timezone *tz)
+{
+	int ret;
+
+	ret = syscall(__NR_gettimeofday, tv, tz);
+	if (ret) {
+		errno = -ret;
+		ret = -1;
+	}
+	return ret;
+}
+
 static void show_timestamp(char *prefix, unsigned long tv_sec, unsigned long tv_usec)
 {
 	test_msg("%8s: sec %20lu nsec %20lu\n", prefix, tv_sec, tv_usec);
@@ -61,7 +79,7 @@ int main(int argc, char *argv[])
 
 	show_pollfd(ufds, 2);
 
-	if (gettimeofday(&time1, NULL)) {
+	if (sys_gettimeofday(&time1, NULL)) {
 		err("Can't get first delta");
 		exit(1);
 	}
@@ -72,7 +90,7 @@ int main(int argc, char *argv[])
 		err("Fork failed");
 		exit(1);
 	} else if (pid == 0) {
-		if (gettimeofday(&time1, NULL)) {
+		if (sys_gettimeofday(&time1, NULL)) {
 			err("Can't get from times");
 			exit(1);
 		}
@@ -89,7 +107,7 @@ int main(int argc, char *argv[])
 				exit(1);
 			}
 
-			if (gettimeofday(&time2, NULL)) {
+			if (sys_gettimeofday(&time2, NULL)) {
 				err("Can't get from times");
 				exit(1);
 			}
-- 
1.9.3