Connect to server

src/control.c

@@ -1,5 +1,49 @@
 #include "control.h"
 
+
+#include <sys/socket.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+
+static int opensocket(const char *hostname, const char *port) {
+	struct addrinfo *res = NULL, pref;
+	int ret;
+	int s;
+	
+	pref.ai_flags = 0;
+	pref.ai_family = PF_UNSPEC;
+	pref.ai_socktype = SOCK_STREAM;
+	pref.ai_protocol = 0;
+	pref.ai_addrlen = 0;
+	pref.ai_addr = NULL;
+	pref.ai_canonname = NULL;
+	pref.ai_next = NULL;
+	
+	if (0 != (ret = getaddrinfo(hostname, port, &pref, &res)) || !res) {
+		fprintf(stderr, "Couldn't find host/port '%s:%s': %s\n", hostname, port, strerror(errno));
+		return -1;
+	}
+
+	if (-1 == (s = socket(res->ai_family, res->ai_socktype, res->ai_protocol))) {
+		fprintf(stderr, "Couldn't create socket: %s\n", strerror(errno));
+		freeaddrinfo(res);
+		return -1;
+	}
+	
+	if (0 != connect(s, res->ai_addr, res->ai_addrlen)) {
+		fprintf(stderr, "Couldn't connect socket to '%s:%s': %s\n", hostname, port, strerror(errno));
+		freeaddrinfo(res);
+		return -1;
+	}
+
+	freeaddrinfo(res);
+	return s;
+}
+
+
+
 static void telemetry_free(gpointer _te, gpointer x) {
 	telemetry *te = (telemetry*) _te;
 	UNUSED(x);
@@ -13,8 +57,14 @@ static telemetry* telemetry_new() {
 	return te;
 }
 
-trial *trial_new() {
-	trial *t = g_slice_new0(trial);
+trial *trial_new(const char *hostname, const char *port) {
+	trial *t;
+	int sock;
+	
+	if (-1 == (sock = opensocket(hostname, port))) return NULL;
+	
+	t = g_slice_new0(trial);
+	t->socket = sock;
 	g_queue_init(&t->telemetry);
 	t->map.solid_objects = g_array_new(FALSE, FALSE, sizeof(object));
 	return t;
@@ -27,6 +77,9 @@ void trial_reset_run(trial *t) {
 }
 
 void trial_wait_for_start(trial *t) {
+	while (0 == t->telemetry.length) {
+		trial_wait_for_input(t);
+	}
 }
 
 void trial_check_input(trial *t) {
@@ -36,6 +89,8 @@ void trial_wait_for_input(trial *t) {
 }
 
 void trial_free(trial *t) {
+	shutdown(t->socket, SHUT_RDWR);
+	close(t->socket);
 	g_queue_foreach(&t->telemetry, telemetry_free, NULL);
 	g_queue_clear(&t->telemetry);
 	g_array_free(t->map.solid_objects, TRUE);

src/control.h

@@ -70,7 +70,7 @@ struct trial {
 };
 
 /* trial */
-trial *trial_new();
+trial *trial_new(const char *hostname, const char *port);
 void trial_reset_run(trial *t);
 void trial_wait_for_start(trial *t);
 void trial_check_input(trial *t);

src/main.c

@@ -1,4 +1,21 @@
 
+#include "control.h"
+
+#include <stdio.h>
+
 int main(int argc, char **argv) {
+	trial *t;
+	
+	if (argc <= 2) {
+		fprintf(stderr, "Syntax: %s hostname port\n", argv[0]);
+		return 1;
+	}
+	
+	if (NULL == (t = trial_new(argv[1], argv[2]))) {
+		return 2;
+	}
+	
+	trial_free(t);
+	
 	return 0;
 }