109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* server.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2017/04/02 15:02:48 by jhalford #+# #+# */
|
|
/* Updated: 2017/10/08 12:25:44 by jhalford ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "ft_p.h"
|
|
|
|
#define FTP_SERVER_USAGE "%s <port>"
|
|
|
|
char **g_av = NULL;
|
|
char g_rootdir[PATH_MAX];
|
|
t_itof g_ftp_cmd[] =
|
|
{
|
|
{REQUEST_FILE, serv_do_get},
|
|
{REQUEST_PUT, serv_do_put},
|
|
{REQUEST_SH, serv_do_sh},
|
|
{REQUEST_CD, serv_do_cd},
|
|
{0, 0},
|
|
};
|
|
|
|
int ftp_cmd(int sock, int req)
|
|
{
|
|
int i;
|
|
int msg_ok;
|
|
|
|
i = -1;
|
|
msg_ok = htons(CMD_SUPPORTED);
|
|
while (g_ftp_cmd[++i].id)
|
|
{
|
|
if (g_ftp_cmd[i].id == req)
|
|
{
|
|
if (!(g_ftp_cmd[i].f))
|
|
break ;
|
|
DG("%i CMD_SUPPORTED", CMD_SUPPORTED);
|
|
write(sock, (char *)&msg_ok, sizeof(msg_ok));
|
|
msg_ok = ntohs((g_ftp_cmd[i].f)(sock));
|
|
write(sock, (char *)&msg_ok, sizeof(msg_ok));
|
|
return (0);
|
|
}
|
|
}
|
|
msg_ok = htons(CMD_NOT_SUPPORTED);
|
|
write(sock, (char *)&msg_ok, sizeof(msg_ok));
|
|
return (1);
|
|
}
|
|
|
|
int ftp_spawn(int sock)
|
|
{
|
|
int req;
|
|
|
|
DG("new connection");
|
|
while ((req = read_req(sock)))
|
|
{
|
|
DG("==== %i NEW REQUEST ====", req);
|
|
ftp_cmd(sock, req);
|
|
DG("==== DONE ====");
|
|
}
|
|
DG("end of connection");
|
|
close(sock);
|
|
return (0);
|
|
}
|
|
|
|
int ftp_daemon(int sock)
|
|
{
|
|
int cs;
|
|
struct sockaddr_in csin;
|
|
socklen_t cslen;
|
|
pid_t pid;
|
|
|
|
while (1)
|
|
{
|
|
cs = accept(sock, (struct sockaddr*)&csin, &cslen);
|
|
if ((pid = fork()) < 0)
|
|
return (-1);
|
|
if (pid == 0)
|
|
{
|
|
close(sock);
|
|
exit(ftp_spawn(cs));
|
|
}
|
|
close(cs);
|
|
}
|
|
close(sock);
|
|
return (0);
|
|
}
|
|
|
|
int main(int ac, char **av)
|
|
{
|
|
int port;
|
|
int sock;
|
|
|
|
g_av = av;
|
|
getcwd(g_rootdir, PATH_MAX);
|
|
if (ac != 2)
|
|
ft_usage(FTP_SERVER_USAGE, av[0]);
|
|
port = ft_atoi(av[1]);
|
|
if ((sock = create_server(port, 3, "tcp")) < 0
|
|
|| ftp_daemon(sock) < 0)
|
|
{
|
|
perror(av[0]);
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|