first steps for the development of remote: connection on TCP done

remote/Makefile

@@ -0,0 +1,28 @@
+CC=gcc
+CFLAGS=-Wall -g
+LDFLAGS= -pthread
+CFILES=$(wildcard *.c) # CFILES => recompiles everything on a C file change
+EXEC=$(basename $(wildcard *.c))
+SOURCES=$(wildcard ../lib/*.c)
+OBJECTS=$(SOURCES:.c=.o)
+TESTS=$(addsuffix .test, $(EXEC))
+
+all: tcpdserver tcpdclient
+
+$(EXEC): $(OBJECTS) $(CFILES)
+	$(CC) $(CFLAGS) $(LDFLAGS) $(OBJECTS) $@.c -o $@
+
+tcpdserver: tcpdserver.c tcpdserver.h
+	$(CC) $(CFLAGS) $@.c -o $@
+
+tcpdclient: tcpdclient.c tcpdserver.h
+	$(CC) $(CFLAGS) $@.c -o $@
+
+.c.o:
+	$(CC) -c $(CFLAGS) $< -o $@
+
+clean:
+	-rm $(OBJECTS)
+
+mrproper: clean
+	rm $(EXEC)

remote/tcpdclient.c

@@ -0,0 +1,37 @@
+#include "tcpdserver.h"
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+
+
+#define PORT 6000
+
+
+int main(int argc, char ** argv) {
+	int sock = socket(AF_INET, SOCK_STREAM, 0);
+	if(sock == -1)
+	{
+	    perror("socket()");
+	    exit(errno);
+	}
+
+	struct sockaddr_in sin = {0};
+	sin.sin_addr.s_addr = inet_addr("127.0.0.1"); 
+	sin.sin_port = htons(PORT); /* on utilise htons pour le port */
+	sin.sin_family = AF_INET;
+
+	if(connect(sock,(struct sockaddr *) &sin, sizeof(struct sockaddr)) == -1)
+	{
+	    perror("connect()");
+	    exit(errno);
+	}
+
+	close(sock);
+
+	return 0;
+}

remote/tcpdserver.c

@@ -0,0 +1,67 @@
+#include "tcpdserver.h"
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#define PORT 6000
+
+int init_connection(void)
+{
+   int sock = socket(AF_INET, SOCK_STREAM, 0);
+   struct sockaddr_in sin = { 0 };
+
+   if(sock == -1)
+   {
+		perror("socket()");
+		exit(errno);
+   }
+
+   sin.sin_addr.s_addr = htonl(INADDR_ANY);
+   sin.sin_port = htons(PORT);
+   sin.sin_family = AF_INET;
+
+   if(bind(sock,(struct sockaddr *) &sin, sizeof sin) == -1)
+   {
+		perror("bind()");
+		exit(errno);
+   }
+
+   if(listen(sock, 5) == -1)
+   {
+		perror("listen()");
+		exit(errno);
+   }
+
+   return sock;
+}
+
+
+// void printClientAddr(struct sockaddr_in &csin) {
+// 	printf("%s\n", );
+// }
+
+
+int main(int argc, char * argv[], char **env) {
+
+	int sock = init_connection();
+
+	struct sockaddr_in csin = { 0 };
+	socklen_t sinsize = sizeof csin;
+	int csock = accept(sock, (struct sockaddr *)&csin, &sinsize);
+	if(csock == -1)
+	{
+		perror("accept()");
+		exit(errno);
+	}
+
+	printf("new client\n");
+
+	close(sock);
+	close(csock);
+	return 0;
+}

remote/tcpdserver.h

@@ -0,0 +1,9 @@
+#ifndef __TCPDSERVER_H__
+#define __TCPDSERVER_H__
+
+
+int initConnection ();
+void endConnection (int sock, int csock);
+
+
+#endif