42-archive/ftp/srcs/client/dconn.c

72 lines
2 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* dconn.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2017/11/08 14:55:15 by jhalford #+# #+# */
/* Updated: 2017/11/08 20:09:58 by jhalford ### ########.fr */
/* */
/* ************************************************************************** */
#include "ftp_client.h"
static int dconn_open_pasv(t_ftp *ftp)
{
int sock;
ftp_ret(ftp, "150 about to open data connection");
sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (connect(sock, (struct sockaddr*)&ftp->dconn.sin,
sizeof(struct sockaddr_in)) < 0)
{
ftp_ret(ftp, "425 can't open data conn");
return(-1);
}
ftp->d_sock = sock;
return (0);
}
static int dconn_open_actv(t_ftp *ftp)
{
int sock;
ftp_ret(ftp, "150 about to accept");
if ((sock = accept(ftp->dconn.sock, NULL, NULL)) < 0)
{
ftp_ret(ftp, "425 can't open data conn");
return(-1);
}
ftp->d_sock = sock;
return (0);
}
int dconn_open(t_ftp *ftp)
{
int code;
code = ftp_code(ftp);
if (ftp->code == 125)
{
if (ftp->data_state == DATA_ACTV)
return (dconn_open_actv(ftp));
else if (ftp->data_state == DATA_PASV)
return (dconn_open_pasv(ftp));
}
else if (ftp->code == 150)
return (0);
else
{
console_msg(-1, "expected 125/150 code");
return (-1);
}
}
/* int dconn_close(t_ftp *ftp) */
/* { */
/* ftp_ret(ftp, "226 closing dataconn"); */
/* close(ftp->d_sock); */
/* ftp->d_sock = 0; */
/* return (0); */
/* } */