test/sockets: add test for shut down stream unix sockets

Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Andrew Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

test/zdtm/static/Makefile

@@ -186,6 +186,7 @@ TST_FILE	=				\
 		cow01				\
 		fdt_shared			\
 		sockets00			\
+		sockets03			\
 		sockets_dgram			\
 		file_locks00			\
 		file_locks01			\

test/zdtm/static/sockets03.c

+#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 <sys/mount.h>
+#include <limits.h>
+#include <fcntl.h>
+
+#include "zdtmtst.h"
+
+const char *test_doc	= "Test unix stream sockets with mismatch in shutdown state\n";
+const char *test_author	= "Andrey Ryabinin <aryabinin@virtuozzo.com>";
+
+#define SK_DATA "packet"
+
+char *filename;
+TEST_OPTION(filename, string, "socket file name", 1);
+
+int main(int argc, char *argv[])
+{
+	int sk[3];
+	struct sockaddr_un addr;
+	unsigned int addrlen;
+	char path[PATH_MAX];
+	char buf[64];
+	char *cwd;
+	int ret;
+
+	test_init(argc, argv);
+
+	cwd = get_current_dir_name();
+	if (!cwd) {
+		fail("getcwd\n");
+		exit(1);
+	}
+
+	snprintf(path, sizeof(path), "%s/%s", cwd, filename);
+	unlink(path);
+
+	addr.sun_family = AF_UNIX;
+	strncpy(addr.sun_path, path, sizeof(addr.sun_path));
+	addrlen = sizeof(addr.sun_family) + strlen(path);
+
+	sk[0] = socket(AF_UNIX, SOCK_STREAM, 0);
+	sk[1] = socket(AF_UNIX, SOCK_STREAM, 0);
+	if (sk[0] < 0 || sk[1] < 0) {
+		fail("socket\n");
+		exit(1);
+	}
+
+	ret = bind(sk[0], &addr, addrlen);
+	if (ret) {
+		fail("bind\n");
+		exit(1);
+	}
+
+	ret = listen(sk[0], 16);
+	if (ret) {
+		fail("listen\n");
+		exit(1);
+	}
+
+	ret = shutdown(sk[1], SHUT_RD);
+	if (ret) {
+		fail("shutdown\n");
+		exit(1);
+	}
+
+	ret = connect(sk[1], &addr, addrlen);
+	if (ret) {
+		fail("connect\n");
+		exit(1);
+	}
+
+	sk[2] = accept(sk[0], NULL, NULL);
+	if (sk[2] < 0) {
+		fail("accept");
+		exit(1);
+	}
+
+	test_daemon();
+	test_waitsig();
+
+	if (write(sk[1], SK_DATA, sizeof(SK_DATA)) < 0) {
+		fail("write\n");
+		exit(1);
+	}
+
+	if (read(sk[2], &buf, sizeof(buf)) < 0) {
+		fail("read\n");
+		exit(1);
+	}
+
+	if (strncmp(buf, SK_DATA, sizeof(SK_DATA))) {
+		fail("data corrupted\n");
+		exit(1);
+	}
+
+	if (write(sk[2], SK_DATA, sizeof(SK_DATA)) >= 0) {
+		fail("successful write to shutdown receiver\n");
+		exit(1);
+	}
+
+	close(sk[0]);
+	close(sk[1]);
+	close(sk[2]);
+
+	pass();
+	return 0;
+}

test/zdtm/static/sockets03.desc

+{'flags': 'suid'}