struct hostent * ResolveName(char * name);
int Connexion(int * csock,int port, struct struct_client *s_client);
int EnvoiRequeteServeur(struct struct_client *s_client);
int RecvSendRequeteServeur(struct struct_client *s_client);
int RecvSendRequeteServeurHeader(struct struct_client *s_client);
int EnvoiClientErreur(struct struct_client *s_client);
char* itoa(int val, int base);
void BrokenPipe (int signal);
void SignalQuit (int signal);
int recv_s(int s, void *buf, int len, unsigned int flags, struct struct_client *s_client);
int send_s(int s, void *buf, int len, unsigned int flags, struct struct_client *s_client);