From 49efbf2e64ca3cebe1153130c87891a70c986a20 Mon Sep 17 00:00:00 2001
From: Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
Date: Thu, 5 Jun 2014 09:35:02 +0000
Subject: [PATCH] added new tools to send/receive data to/from stdin/out

git-svn-id: https://zerberus.eonerc.rwth-aachen.de:8443/svn/s2ss/trunk@33 8ec27952-4edc-4aab-86aa-e87bb2611832
---
 .gitignore    |  2 ++
 src/receive.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++
 src/send.c    | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 154 insertions(+)
 create mode 100644 src/receive.c
 create mode 100644 src/send.c

diff --git a/.gitignore b/.gitignore
index ab874738e..049f69477 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,5 @@ doc/latex/
 server
 test
 random
+send
+receive
diff --git a/src/receive.c b/src/receive.c
new file mode 100644
index 000000000..f8c96060a
--- /dev/null
+++ b/src/receive.c
@@ -0,0 +1,73 @@
+/**
+ * Receive messages from server snd print them on stdout
+ *
+ * @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
+ * @copyright 2014, Institute for Automation of Complex Power Systems, EONERC
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "config.h"
+#include "utils.h"
+#include "msg.h"
+
+int sd;
+
+void quit(int sig, siginfo_t *si, void *ptr)
+{
+	close(sd);
+	exit(EXIT_SUCCESS);
+}
+
+int main(int argc, char *argv[])
+{
+ 	struct sockaddr_in sa;
+
+	if (argc != 2) {
+		printf("Usage: %s IP:PORT\n", argv[0]);
+		printf("  IP is the destination ip of our packets\n");
+		printf("  PORT is the port to receive from\n\n");
+		printf("s2ss Simulator2Simulator Server v%s\n", VERSION);
+		printf("Copyright 2014, Institute for Automation of Complex Power Systems, EONERC\n");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Setup signals */
+	struct sigaction sa_quit = {
+		.sa_flags = SA_SIGINFO,
+		.sa_sigaction = quit
+	};
+
+	sigemptyset(&sa_quit.sa_mask);
+	sigaction(SIGINT, &sa_quit, NULL);
+
+	/* Resolve address */
+	if (resolve(argv[1], &sa, 0))
+		error("Failed to resolve: %s", argv[1]);
+
+	/* Create socket */
+	sd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (sd < 0)
+		error("Failed to create socket: %s", strerror(errno));
+
+	/* Bind socket */
+	if (bind(sd, (struct sockaddr *) &sa, sizeof(struct sockaddr_in)))
+		error("Failed to bind socket: %s", strerror(errno));
+
+	struct msg m;
+	while (1) {
+		recv(sd, &m, sizeof(struct msg), 0);
+		msg_fprint(stdout, &m);
+	}
+
+	return 0;
+}
diff --git a/src/send.c b/src/send.c
new file mode 100644
index 000000000..db8ea3de4
--- /dev/null
+++ b/src/send.c
@@ -0,0 +1,79 @@
+/**
+ * Send messages from stdin to server
+ *
+ * @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
+ * @copyright 2014, Institute for Automation of Complex Power Systems, EONERC
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "config.h"
+#include "utils.h"
+#include "msg.h"
+
+int sd;
+
+void quit(int sig, siginfo_t *si, void *ptr)
+{
+	close(sd);
+	exit(EXIT_SUCCESS);
+}
+
+int main(int argc, char *argv[])
+{
+ 	struct sockaddr_in sa;
+
+	if (argc != 2) {
+		printf("Usage: %s IP:PORT\n", argv[0]);
+		printf("  IP is the destination ip of our packets\n");
+		printf("  PORT is the port to send to\n\n");
+		printf("s2ss Simulator2Simulator Server v%s\n", VERSION);
+		printf("Copyright 2014, Institute for Automation of Complex Power Systems, EONERC\n");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Setup signals */
+	struct sigaction sa_quit = {
+		.sa_flags = SA_SIGINFO,
+		.sa_sigaction = quit
+	};
+
+	sigemptyset(&sa_quit.sa_mask);
+	sigaction(SIGINT, &sa_quit, NULL);
+
+	/* Resolve address */
+	if (resolve(argv[1], &sa, 0))
+		error("Failed to resolve: %s", argv[1]);
+
+	/* Create socket */
+	sd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (sd < 0)
+		error("Failed to create socket: %s", strerror(errno));
+
+	// TODO: remove workaround
+	struct msg msg = {
+		.length = 5 * sizeof(double)
+	};
+
+	/* Connect socket */
+	if (connect(sd, (struct sockaddr *) &sa, sizeof(struct sockaddr_in))) {
+		error("Failed to connect socket: %s", strerror(errno));
+	}
+
+	while (!feof(stdin)) {
+		msg_fscan(stdin, &msg);
+		msg_fprint(stdout, &msg);
+		send(sd, &msg, 8 + msg.length, 0);
+	}
+
+	return 0;
+}