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#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <err.h>
#include <errno.h>
#include <netinet/in.h>
#include <event.h>
#include "libglouglou.h"
/* Server - private */
void cb_receive(evutil_socket_t fd, short what, void *arg);
/*
* Server
*/
/*
* start a server
*/
struct gg_server *
gg_server_start(struct event_base *ev_base, char *ip, int port,
int (*handle_conn)(struct gg_server *s, int client_id, struct sockaddr_in *addr),
int (*handle_packet)(struct gg_server *s, struct gg_packet *p))
{
struct sockaddr_in sock_addr;
struct gg_server *srv;
struct event *ev;
int s;
int sock_on = 1;
event_init(); /* XXX needed ? */
srv = xcalloc(1, sizeof(struct gg_server));
s = socket(AF_INET, SOCK_DGRAM, 0);
if (s < 0)
goto err;
srv->sock = s;
setsockopt(s, SOL_SOCKET, SO_REUSEADDR,
&sock_on, sizeof(sock_on));
memset(&sock_addr, 0, sizeof(sock_addr));
sock_addr.sin_family = AF_INET;
sock_addr.sin_addr.s_addr = htonl(INADDR_ANY); /* XXX use ip */
sock_addr.sin_port = htons(port);
if (bind(s, (struct sockaddr *)&sock_addr,
sizeof(sock_addr)) != 0)
goto err;
fd_nonblock(s);
ev = event_new(ev_base, s, EV_READ|EV_PERSIST, cb_receive, srv);
event_add(ev, NULL);
srv->ev = ev;
return srv;
err:
printf("libglouglou: gg_server_start: Error ! %s",
strerror(errno));
gg_server_stop(srv);
return NULL;
}
int
gg_server_send(struct gg_server *s, int client_id, struct gg_packet *p)
{
return -1;
}
void
gg_server_stop(struct gg_server *srv)
{
if (srv->ev)
event_del(srv->ev);
if (srv->sock)
close(srv->sock);
free(srv);
}
/*
* Server - private
*/
void cb_receive(evutil_socket_t fd, short what, void *arg)
{
printf("Incoming data !\n");
}
/*
* Client
*/
/*
* connect to a server
*/
struct gg_client *
gg_client_connect(char *ip, int port,
int (*handle_conn)(struct gg_client *c, int status),
int (*handle_packet)(struct gg_client *c, struct gg_packet *p))
{
struct gg_client *c;
c = xmalloc(sizeof(struct gg_client));
return c;
}
int
gg_client_send(struct gg_client *c, struct gg_packet *p)
{
return -1;
}
void
gg_client_disconnect(struct gg_client *c)
{
free(c);
}
/*
* Utils
*/
void *
xmalloc(size_t size)
{
void *data;
data = malloc(size);
if (!data)
err(1, "could not malloc %d", (int)size);
return data;
}
void *
xcalloc(size_t nmemb, size_t size)
{
void *data;
data = calloc(nmemb, size);
if (!data)
err(1, "could not calloc %d", (int)size);
return data;
}
void
fd_nonblock(int fd)
{
int flags = fcntl(fd, F_GETFL, 0);
int rc = fcntl(fd, F_SETFL, flags | O_NONBLOCK);
if (rc == -1)
printf("failed to set fd %i non-blocking", fd);
}
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