tests: replace net-yy.test with net-yy-inet.test

Unlike the former test that was based on match_awk,
the new one uses match_diff and does more rigorous testing.

* tests/net-yy-inet.c: New file.
* tests/net-yy-inet.test: New test.
* tests/net-yy.test: Remove.
* tests/net-yy-accept.awk: Remove.
* tests/net-yy-connect.awk: Remove.
* tests/inet-accept-connect-send-recv.c: Remove.
* tests/.gitignore: Replace inet-accept-connect-send-recv
with net-yy-inet.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(TESTS): Replace net-yy.test with net-yy-inet.test.
(EXTRA_DIST): Remove net-yy-accept.awk and net-yy-connect.awk.
diff --git a/tests/net-yy-inet.c b/tests/net-yy-inet.c
new file mode 100644
index 0000000..c6842b4
--- /dev/null
+++ b/tests/net-yy-inet.c
@@ -0,0 +1,173 @@
+/*
+ * This file is part of net-yy-inet strace test.
+ *
+ * Copyright (c) 2014-2016 Dmitry V. Levin <ldv@altlinux.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tests.h"
+#include <assert.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <arpa/inet.h>
+
+int
+main(void)
+{
+	const struct sockaddr_in addr = {
+		.sin_family = AF_INET,
+		.sin_addr.s_addr = htonl(INADDR_LOOPBACK)
+	};
+	struct sockaddr * const listen_sa = tail_memdup(&addr, sizeof(addr));
+	socklen_t * const len = tail_alloc(sizeof(socklen_t));
+	*len = sizeof(addr);
+
+	const int listen_fd = socket(PF_INET, SOCK_STREAM, 0);
+	if (listen_fd < 0)
+		perror_msg_and_skip("socket");
+	const unsigned long listen_inode = inode_of_sockfd(listen_fd);
+	printf("socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = %d<TCP:[%lu]>\n",
+	       listen_fd, listen_inode);
+
+	if (bind(listen_fd, listen_sa, *len))
+		perror_msg_and_skip("bind");
+	printf("bind(%d<TCP:[%lu]>, {sa_family=AF_INET, sin_port=htons(0)"
+	       ", sin_addr=inet_addr(\"127.0.0.1\")}, %u) = 0\n",
+	       listen_fd, listen_inode, (unsigned) *len);
+
+	if (listen(listen_fd, 1))
+		perror_msg_and_skip("listen");
+	printf("listen(%d<TCP:[%lu]>, 1) = 0\n", listen_fd, listen_inode);
+
+	memset(listen_sa, 0, sizeof(addr));
+	*len = sizeof(addr);
+	if (getsockname(listen_fd, listen_sa, len))
+		perror_msg_and_fail("getsockname");
+	const unsigned int listen_port =
+		ntohs(((struct sockaddr_in *) listen_sa) -> sin_port);
+	printf("getsockname(%d<TCP:[127.0.0.1:%u]>, {sa_family=AF_INET"
+	       ", sin_port=htons(%u), sin_addr=inet_addr(\"127.0.0.1\")}"
+	       ", [%u]) = 0\n",
+	       listen_fd, listen_port, listen_port, (unsigned) *len);
+
+	unsigned int * const optval = tail_alloc(sizeof(unsigned int));
+	*len = sizeof(*optval);
+	if (getsockopt(listen_fd, SOL_TCP, TCP_MAXSEG, optval, len))
+		perror_msg_and_fail("getsockopt");
+	printf("getsockopt(%d<TCP:[127.0.0.1:%u]>, SOL_TCP, TCP_MAXSEG"
+	       ", [%u], [%u]) = 0\n",
+	       listen_fd, listen_port, *optval, (unsigned) *len);
+
+	const int connect_fd = socket(PF_INET, SOCK_STREAM, 0);
+	if (connect_fd < 0)
+		perror_msg_and_fail("socket");
+	const unsigned long connect_inode = inode_of_sockfd(connect_fd);
+	printf("socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = %d<TCP:[%lu]>\n",
+	       connect_fd, connect_inode);
+
+	*len = sizeof(addr);
+	if (connect(connect_fd, listen_sa, *len))
+		perror_msg_and_fail("connect");
+	printf("connect(%d<TCP:[%lu]>, {sa_family=AF_INET, sin_port=htons(%u)"
+	       ", sin_addr=inet_addr(\"127.0.0.1\")}, %u) = 0\n",
+	       connect_fd, connect_inode, listen_port, (unsigned) *len);
+
+	struct sockaddr * const accept_sa = tail_alloc(sizeof(addr));
+	memset(accept_sa, 0, sizeof(addr));
+	*len = sizeof(addr);
+	const int accept_fd = accept(listen_fd, accept_sa, len);
+	if (accept_fd < 0)
+		perror_msg_and_fail("accept");
+	const unsigned int connect_port =
+		ntohs(((struct sockaddr_in *) accept_sa) -> sin_port);
+	printf("accept(%d<TCP:[127.0.0.1:%u]>, {sa_family=AF_INET"
+	       ", sin_port=htons(%u), sin_addr=inet_addr(\"127.0.0.1\")}"
+	       ", [%u]) = %d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>\n",
+	       listen_fd, listen_port, connect_port, (unsigned) *len,
+	       accept_fd, listen_port, connect_port);
+
+	memset(accept_sa, 0, sizeof(addr));
+	*len = sizeof(addr);
+	if (getpeername(accept_fd, accept_sa, len))
+		perror_msg_and_fail("getpeername");
+	printf("getpeername(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>"
+	       ", {sa_family=AF_INET, sin_port=htons(%u)"
+	       ", sin_addr=inet_addr(\"127.0.0.1\")}, [%u]) = 0\n",
+	       accept_fd, listen_port, connect_port, connect_port,
+	       (unsigned) *len);
+
+	memset(listen_sa, 0, sizeof(addr));
+	*len = sizeof(addr);
+	if (getpeername(connect_fd, listen_sa, len))
+		perror_msg_and_fail("getpeername");
+	printf("getpeername(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>"
+	       ", {sa_family=AF_INET, sin_port=htons(%u)"
+	       ", sin_addr=inet_addr(\"127.0.0.1\")}, [%u]) = 0\n",
+	       connect_fd, connect_port, listen_port, listen_port,
+	       (unsigned) *len);
+
+	*len = sizeof(*optval);
+	if (setsockopt(connect_fd, SOL_TCP, TCP_MAXSEG, optval, *len))
+		perror_msg_and_fail("setsockopt");
+	printf("setsockopt(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>"
+	       ", SOL_TCP, TCP_MAXSEG, [%u], %u) = 0\n",
+	       connect_fd, connect_port, listen_port, *optval,
+	       (unsigned) *len);
+
+	char text[] = "text";
+	assert(sendto(connect_fd, text, sizeof(text) - 1,
+	       MSG_DONTROUTE | MSG_DONTWAIT, NULL, 0) == sizeof(text) - 1);
+	printf("sendto(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>, \"%s\", %u"
+	       ", MSG_DONTROUTE|MSG_DONTWAIT, NULL, 0) = %u\n",
+	       connect_fd, connect_port, listen_port, text,
+	       (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1);
+
+	assert(close(connect_fd) == 0);
+	printf("close(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>) = 0\n",
+	       connect_fd, connect_port, listen_port);
+
+	assert(recvfrom(accept_fd, text, sizeof(text) - 1, MSG_WAITALL,
+			NULL, NULL) == sizeof(text) - 1);
+	printf("recvfrom(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>, \"%s\", %u"
+	       ", MSG_WAITALL, NULL, NULL) = %u\n",
+	       accept_fd, listen_port, connect_port, text,
+	       (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1);
+
+	assert(close(accept_fd) == 0);
+	printf("close(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>) = 0\n",
+	       accept_fd, listen_port, connect_port);
+
+	assert(close(listen_fd) == 0);
+	printf("close(%d<TCP:[127.0.0.1:%u]>) = 0\n",
+	       listen_fd, listen_port);
+
+	puts("+++ exited with 0 +++");
+	return 0;
+}