sysdis-tp/server.c

#include "server.h"



int main(int argc, char* argv[]){

	/* [1] Initialisation
	=========================================================*/
	/* (1) Socket info */
	// Client
	struct sockaddr_in addr_client;
	char client_ip[20];
	// Socket
	int sock;


	/* (2) Misc. information */
	char* to_send = (char*) malloc( BUFSIZE * sizeof(char) );
	char* to_recv = (char*) malloc( BUFSIZE * sizeof(char) );
	int bytes; // transfer count



	/* [2] Create socket
	=========================================================*/
	/* (1) Create socket */
	sock = xbind(4000);

	/* (1-) Manage error */
	if( sock == -1 ){
		perror("erreur création socket");
		exit(1);
	}


	/* [3] Wait for client message
	=========================================================*/
	/* (1) Listen to data */
	bytes = xlisten(sock, &addr_client, to_recv, BUFSIZE);


	/* (2) Manage error */
	if( bytes == -1 ){
		perror("erreur réception paquet");
		exit(1);
	}

	// Get client ip
	inet_ntop(AF_INET, &(addr_client.sin_addr), client_ip, 20);

	printf("*** received '%s' (%d bytes) from %s:%d\n", to_recv, bytes, client_ip, ntohs(addr_client.sin_port));

	/* [4] Send response
	=========================================================*/
	/* (1) Set response data */
	strcpy(to_send, "server response");
	
	/* (2) Send response */
	bytes = xsend(sock, to_send, &addr_client);

	/* (3) Manage error */
	if( bytes == -1 ){
		perror("erreur envoi réponse");
		exit(1);
	}

	/* [5] Close socket
	=========================================================*/
	close(sock);
}