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| int SendToServergeo (char* host_distant, char* szBeginSend,
char* szEndSend, char* message, int mode, char *reponse_serveur,
FILE *ftrace_geo)
{
int sock;
struct sockaddr_in servername;
unsigned short int port = 2580;
char hostname[256];
strcpy(hostname, host_distant);
sock = socket (PF_INET, SOCK_STREAM, 0);
if (sock < 0)
{
perror ("socket (client)");
return -1;
}
fcntl(sock,F_SETFL,O_NONBLOCK);
int iAlive = 1;
int iAliveLen = sizeof(iAlive);
int iRetCode = setsockopt( sock, SOL_SOCKET,
SO_KEEPALIVE, &iAlive, iAliveLen);
if( iRetCode < 0 )
{
perror("setsockopt(SO_REUSEADDR)" );
return EXIT_FAILURE;
}
/* Connect to the server. */
struct hostent *hostinfo;
servername.sin_family = AF_INET;
servername.sin_port = htons (port);
hostinfo = gethostbyname (hostname);
if (hostinfo == NULL)
{
fprintf (stdout, "Unknown host %s :
erreur %d\n", hostname,h_errno);
return EXIT_FAILURE;
}
servername.sin_addr = *(struct in_addr *) hostinfo->h_addr;
if (connect (sock,
(struct sockaddr *) &servername,
sizeof (servername))<0)
{
if(errno !=EINPROGRESS)
{
perror ("connect (client)");
return EXIT_FAILURE;
}
}
// on attend maintenant que la socket soit prete
struct timeval timeout;
timeout.tv_sec = 1000;
timeout.tv_usec =0;
fd_set fds;
FD_ZERO(&fds);
FD_SET(sock,&fds);
int rc=0;
rc = select(sizeof(fds)*8,NULL,&fds,NULL,&timeout);
if(rc <=0)
{
fprintf(stdout,"Erreur, impossible d'ouvrir
le port socket : %s\n",strerror(errno));
return -1;
}
fcntl(sock,F_SETFL,!O_NONBLOCK);
char buffer[320000];
strcpy(buffer, message);
int lmess = strlen(buffer);
char *pmessage=buffer;
do
{
int lwri = 4096;
if(lmess < lwri)
lwri=lmess;
int nbw=write(sock, pmessage, lwri);
if(nbw <0)
{
fprintf(stdout,"Erreur, impossible d'Ècrire
le message : %s\n",strerror(errno));
return -1;
}
else
{
lmess-=nbw;
pmessage+=nbw;
}
}
while(lmess > 0);
int nbc=0;
fcntl(sock,F_SETFL,O_NONBLOCK);
int nbessais=10;
do
{
nbc=read(sock,buffer,320000);
if(nbc>0)
{
buffer[nbc]='\0';
fprintf(stdout,"%s",buffer);
fflush(stdout);
}
else if(nbc <0)
{
if(errno == EAGAIN)
{
nbessais--;
//sleep(1);
}
else if(errno !=54)
{
fprintf(stdout,"Erreur, impossible de lire
la rÈponse : %d %s\n",errno,strerror(errno));
return -1;
}
else
{
close (sock);
return EXIT_SUCCESS;
}
}
// quand le retour vaut 0, c'est la fin de fichier
}
while((nbc !=0) && (nbessais>0));
close (sock);
if(nbessais == 0)
{ //on n'a rien lu, on sort avec un code retour ‡ -1
return -1;
}
return 0;
} |
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