// Thread which handle the sending of a file
void* handle_send_file(void* pdata)
{
int sock;
struct sockaddr_in serv_info;
char ip[16];
char port[6];
char filepath[MSG_BUFFER];
int c, i;
FILE* file;
char bufout[RW_BUFFER];
struct info* pinfo = pdata;
ssize_t r,n,t;
regex_get_filere(pinfo->inbuf, ip, port, filepath);
// todo erno
file = fopen(filepath, "rb");
if(file == NULL)
{
printf("\n> Error : file does not exist\n> ");
fflush(stdout);
return NULL;
}
get_addr_info(&serv_info, ip, port);
sock = do_socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
for(i = 0; i < 5; i++) {
c = connect(sock, (struct sockaddr*)&serv_info, sizeof(serv_info));
if(c == 0)
break;
sleep(1);
}
if(c != 0)
{
printf("\n> Cannot connect to client\n> ");
fflush(stdout);
fclose(file);
close(sock);
return NULL;
}
// Send the file
do {
t = fread(bufout, 1, RW_BUFFER, file);
r = t;
do {
n = write(sock, bufout, r);
if (n < 0 ) error("ERROR with write() in do_write()");
r -= n;
} while (r > 0);
} while(t == RW_BUFFER);
printf("\n> File transfered.\n> ");
fflush(stdout);
fclose(file);
close(sock);
}
void Socket::create_and_connect()
{
addrinfo* serverinfo;
int res;
if ((res = get_addr_info(&serverinfo)) != 0)
{
throw std::system_error(errno, std::system_category(),
REPORT_ERROR("getaddrinfo failure: " +
std::string(gai_strerror(res))));
}
try
{
create_socket(serverinfo);
connect_socket(serverinfo);
}
catch (std::system_error const& err)
{
freeaddrinfo(serverinfo);
close(sock);
throw err;
}
freeaddrinfo(serverinfo);
if (!server_info.password.empty())
send_to_socket("PASS " + server_info.password + "\r\n");
send_to_socket("NICK " + server_info.nick + "\r\n");
send_to_socket("USER " + server_info.user + "\r\n");
}
int main(int argc, char** argv) {
int quit = 0;
if (argc != 3) {
fprintf(stderr, "usage: RE216_CLIENT hostname port\n");
return 1;
}
//get address info from the server
//get_addr_info()
struct addrinfo addr;
struct addrinfo * add = &addr;
struct addrinfo ** ad = &add;
ad = get_addr_info(argv[1], argv[2], ad);
add = *ad;
addr = *add;
//get the socket
int s;
s = do_socket();
//connect to remote socket
do_connect(s, addr.ai_addr, addr.ai_addrlen);
char * buffer = malloc(MAXLEN);
memset(buffer, 0, MAXLEN);
for(;;) {
//get user input
readline(0, buffer, MAXLEN);
//send message to the server
handle_client_message(s, buffer);
// Test if log off signal was sent
if (strcmp(buffer, "/quit\n") == 0) {
fprintf(stderr, "Quit signal sent\n");
break;
}
// Receive an echo and display it
memset(buffer, 0, MAXLEN);
read(s, buffer, 256);
fprintf(stderr, "--> %s", buffer);
}
//Clean buffer
free(buffer);
//clean up socket
shutdown(s, SHUT_RDWR);
close(s);
return 0;
}
int main(int argc,char** argv)
{
if (argc != 3)
{
fprintf(stderr,"usage: RE216_CLIENT hostname port\n");
return 1;
}
//get address info from the server
struct addrinfo addr;
struct addrinfo * add = &addr;
struct addrinfo ** res = &add;
int sockfd;
get_addr_info(argv[1], argv[2], res);
add = *res;
addr= *add;
//get the socket
sockfd = do_socket();
//connect to remote socket
do_connect(sockfd,addr.ai_addr, addr.ai_addrlen);
for(;;){
char buffer[256];
memset(&buffer, 0, 256);
fprintf (stdout,"Tapez le message à envoyer (moins de 256 caractères) : \n");
fgets((char *) buffer, 256, stdin);
int ecrit = write(sockfd, buffer, strlen((char *) buffer));
//handle_client_message(sockfd, &buffer, (int) 256);
memset(&buffer, 0, (int) 256);
read(sockfd, buffer, (int) 256);
fprintf(stderr, "SERVER --> %s", buffer);
if(strcmp(buffer, "Connexion terminée\n") == 0)
break;
}
close(sockfd);
return 0;
}
/* Prepare Ipv6 Socket */
bool prepare_sock6(struct sockaddr_in6 * tgt_addr6)
{
struct addrinfo *addr_info;
memset(tgt_addr6, 0, sizeof(*tgt_addr6));
if ((addr_info = get_addr_info(IPV6)) == NULL) {
errlog("Erorr: Unable to get address info\n");
return false;
}
tgt_addr6->sin6_addr = ((struct sockaddr_in6 *)addr_info->ai_addr)->sin6_addr;
tgt_addr6->sin6_port = htons(port);
tgt_addr6->sin6_family = AF_INET6;
return true;
}
/* Prepare Ipv4 Socket */
bool prepare_sock(struct sockaddr_in * tgt_addr)
{
struct addrinfo *addr_info;
memset(tgt_addr, 0, sizeof(*tgt_addr));
if ((addr_info = get_addr_info(IPV4)) == NULL) {
errlog("Error: Unable to get address info\n");
return false;
}
tgt_addr->sin_addr = ((struct sockaddr_in *)addr_info->ai_addr)->sin_addr;
tgt_addr->sin_port = htons(port);
tgt_addr->sin_family = AF_INET;
return true;
}
void proto_connect() {
{
struct addrinfo *info = get_addr_info(bot->host, bot->port);
bot->socket = getsock(info);
fcntl(bot->socket, F_SETFL, O_NONBLOCK);
bot->running = 1;
// we won't need this anymore.
freeaddrinfo(info);
}
printf("[irc\tinfo] registering with the server.\n");
sockprintf(bot->socket, "NICK %s", bot->nick);
sockprintf(bot->socket, "USER apollo * * :hi i'm apollo");
}
int main(int argc,char** argv) {
if (argc != 3) {
fprintf(stderr,"usage: RE216_CLIENT hostname port\n");
return 1;
}
// -----------------------------------------------------------------
// ------------------------ Variables ------------------------------
// Buffer
char *input = NULL; // Taille d'entrée dynamique
char output[TAILLE_MSG];// Taille de réception fixée
// Liste chaînée pour l'envoi de fichiers
struct file fichiers;
memset(&fichiers, 0, sizeof(struct file));
// Récupération de la structure sockaddr_in6 pour l'adresse du serveur
struct sockaddr_in6* server_add = get_addr_info(atoi(argv[2]), argv[1]);
// Création de la socket
int sckt = do_socket();
// Connexion de la socket à l'adresse server_add
int conn = do_connect(sckt, *server_add);
// Initialisation des tableaux pour utliser select ------------------
fd_set fd_set_read; // Ici seront stockés les descripteurs de fichier
int i, select_ret_val;
// Socket du serveur quand elle existe
int socket_fichier = -1;
// Eventuellement : timeout du select
//~ struct timeval tv;
//~ tv.tv_sec = 5;
//~ tv.tv_usec = 0;
init_reg();
// -----------------------------------------------------------------
// -----------------------------------------------------------------
start_line();
// Boucle jusqu'à recevoir le "/quit" final
do {
// ------------------------ R.A.Z ------------------------------
// clean the set before adding file descriptors
FD_ZERO(&fd_set_read);
// add the fd for server connection
FD_SET(sckt, &fd_set_read);
// add the fd for user-input
FD_SET(fileno(stdin), &fd_set_read);
// -------------------------------------------------------------
// we now wait for any file descriptor to be available for reading
select_ret_val = select(sckt + 1, &fd_set_read, NULL, NULL, NULL);//&tv);
if (select_ret_val == -1) {
error("Erreur concernant le select ");
}
//printf("Le retour de la fonction select est : %i", select_ret_val);
for (i = 0; i < (sckt+1) && select_ret_val > 0; i++) {
// Le buffer est nettoyé avec memset directement dans les fonctions
//printf("Bonjour je suis le i n°%i. Retour => %i\n", i, select_ret_val);
// Si le file descripteur i est dans le set mis en écoute, c'est qu'il y a une activité
if (FD_ISSET(i, &fd_set_read)) {
// printf("Descripteur trouvé : %i\n", i);
if (i == fileno(stdin)) // C'est une entrée utilisateur
client_write(&input, sckt, &fichiers);
else // Les données viennent du serveur
if (!client_read(sckt, output, &fichiers, &socket_fichier))
break;
// Select_ret_val est le nombre de descripteurs où il y
// a eu une activité, on diminue donc sa valeur au fur
// et à mesure.
select_ret_val--;
}
}
} while(notquit(input) && notquit(output));
//printf("Extinction.\n");
free(input);
free_file(&fichiers);
free_reg();
// Fermeture de la socket
close_socket(sckt);
printf("Fin du tchat\n");
return 0;
}
/** Creates socket and connects.
*
* creates socket and initiates tcp connection.
*/
bool socket::connect(const std::string host, const std::string port) {
if (!get_addr_info(host, port)) return false;
if (!ip_endpoint_->results) return false;
bool rc(false);
// find a suitable interface
for (ip_endpoint_->rp = ip_endpoint_->results;
ip_endpoint_->rp != nullptr;
ip_endpoint_->rp = \
ip_endpoint_->rp->ai_next) {
ip_endpoint_->socket_ = ::socket(ip_endpoint_->rp->ai_family,
ip_endpoint_->rp->ai_socktype,
ip_endpoint_->rp->ai_protocol);
if (ip_endpoint_->socket_ == -1)
continue;
// attempt to connect
if (::connect(ip_endpoint_->socket_,
ip_endpoint_->rp->ai_addr,
ip_endpoint_->rp->ai_addrlen) != -1) {
// set options
int option = 1;
setsockopt(ip_endpoint_->socket_,
SOL_SOCKET, SO_REUSEADDR,
(char *) &option, sizeof (option));
rc = true;
syslog(LOG_DEBUG, "connection to %s OK", host.c_str());
// success
break;
}
close(ip_endpoint_->socket_);
}
if (ip_endpoint_->rp == nullptr) {
syslog(LOG_DEBUG, "unable to allocate interface to destination host");
return false;
}
// free results
freeaddrinfo(ip_endpoint_->results);
// open stream for write
if (nullptr == (ip_endpoint_->tx = \
fdopen(ip_endpoint_->socket_, "w"))) {
close(ip_endpoint_->socket_);
syslog(LOG_DEBUG, "unable to open TX stream");
} else rc = true;
// open stream for read
if (nullptr == (ip_endpoint_->rx = \
fdopen(ip_endpoint_->socket_, "r"))) {
close(ip_endpoint_->socket_);
syslog(LOG_DEBUG, "unable to open RX stream");
} else rc = true;
return rc;
}
int get_hostaddr_hostent_af(
int *rc,
char *hostname,
unsigned short *af_family,
char **host_addr,
int *host_addr_len)
{
int addr_rc;
struct sockaddr_in sa;
char log_buf[LOCAL_LOG_BUF_SIZE];
char *tmp_ip = NULL;
#ifdef NUMA_SUPPORT
/* if this is a numa host, just get the parent node's address */
char *dash;
if ((dash = strchr(hostname,'-')) != NULL)
{
char *tmp;
/* make sure to use the last dash */
while ((tmp = strchr(dash+1,'-')))
dash = tmp;
if (isdigit(*(dash+1)))
{
/* terminate string temporarily */
*dash = '\0';
/* check if this resolves to a hostname without the dash */
if ((addr_rc = get_addr_info(hostname, &sa, 3)) != 0)
{
/* not a numa-owned node, act normal */
*dash = '-';
addr_rc = get_addr_info(hostname, &sa, 3);
}
}
/* otherwise proceed with just the parent hostname so
* it can be resolved */
else
addr_rc = get_addr_info(hostname, &sa, 3);
}
else
addr_rc = get_addr_info(hostname, &sa, 3);
#else
addr_rc = get_addr_info(hostname, &sa, 3);
#endif /* NUMA_SUPPORT */
*rc = PBSE_NONE;
if (addr_rc != 0)
{
snprintf(log_buf, sizeof(log_buf),
"cannot resolve IP address for host '%s' herror=%d: %s",
hostname,
h_errno,
hstrerror(h_errno));
/* This is for cases where the client is running this command */
if (log_mutex == NULL)
fprintf(stderr, "%s\n", log_buf);
else
log_event(PBSEVENT_SYSTEM,PBS_EVENTCLASS_SERVER,"get_hostaddr_hostent",log_buf);
if (h_errno == TRY_AGAIN)
*rc = PBS_NET_RC_RETRY;
else
*rc = PBS_NET_RC_FATAL;
return(*rc);
}
if ((tmp_ip = (char *)calloc(1, sizeof(struct in_addr) + 1)) == NULL)
{
*rc = PBS_NET_RC_FATAL;
}
else
{
memcpy(tmp_ip, &sa.sin_addr, sizeof(struct in_addr));
*host_addr = tmp_ip;
*host_addr_len = sizeof(struct in_addr);
*af_family = sa.sin_family;
}
return(*rc);
} /* END get_hostaddr_hostent() */