[CRIU] [PATCH]v2 zdtm: test semi-closed unix stream connection for data loss

[Ruslan Kuprieiev]

Hi!

Added test for data loss in semi-closed stream unix connection.
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Signed-off-by: Ruslan Kuprieiev <kupruser at gmail.com>

diff --git a/test/zdtm/live/static/Makefile b/test/zdtm/live/static/Makefile
index f76e61b..68c147e 100644
--- a/test/zdtm/live/static/Makefile
+++ b/test/zdtm/live/static/Makefile
@@ -48,6 +48,7 @@ TST_NOFILE	=				\
 		pstree				\
 		sockets01			\
 		sockets02			\
+		sockets03			\
 		sockets_spair			\
 		socket_queues			\
 		socket_queues02			\
diff --git a/test/zdtm/live/static/sockets03.c b/test/zdtm/live/static/sockets03.c
new file mode 100644
index 0000000..82d67db
--- /dev/null
+++ b/test/zdtm/live/static/sockets03.c
@@ -0,0 +1,52 @@
+#define _GNU_SOURCE
+
+#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 <time.h>
+
+#include "zdtmtst.h"
+
+const char *test_doc	= "Test semi-closed unix stream connection "
+			  "for data loss\n";
+const char *test_author	= "Ruslan Kuprieiev <kupruser at gmail.com>\n";
+
+int main(int argc, char *argv[])
+{
+	int ssk_pair[2], ret;
+	char wdata, rdata;
+
+	srandom(time(NULL));
+	wdata = (char)random();
+
+	test_init(argc, argv);
+
+	if (socketpair(AF_UNIX, SOCK_STREAM, 0, ssk_pair) == -1) {
+		fail("socketpair\n");
+		exit(1);
+	}
+
+	write(ssk_pair[1], &wdata, sizeof(wdata));
+	close(ssk_pair[1]);
+
+	test_daemon();
+	test_waitsig();
+
+	ret = read(ssk_pair[0], &rdata, sizeof(rdata));
+	if (rdata != wdata || ret != sizeof(rdata)) {
+		fail("Data loss (write %d/read %d)", wdata, rdata);
+		return 0;
+	}
+
+	pass();
+	return 0;
+}