69 lines
2 KiB
C
69 lines
2 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* dconn.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/11/08 14:55:15 by jhalford #+# #+# */
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/* Updated: 2017/11/08 17:30:21 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "ftp_server.h"
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static int dconn_open_actv(t_ftp *ftp)
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{
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int sock;
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ftp_ret(ftp, "150 about to open data connection");
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sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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if (connect(sock, (struct sockaddr*)&ftp->dconn.sin,
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sizeof(struct sockaddr_in)) < 0)
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{
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ftp_ret(ftp, "425 can't open data conn");
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return(-1);
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}
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ftp->d_sock = sock;
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return (0);
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}
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static int dconn_open_pasv(t_ftp *ftp)
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{
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int sock;
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ftp_ret(ftp, "150 about to accept");
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if ((sock = accept(ftp->dconn.sock, NULL, NULL)) < 0)
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{
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ftp_ret(ftp, "425 can't open data conn");
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return(-1);
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}
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ftp->d_sock = sock;
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return (0);
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}
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int dconn_open(t_ftp *ftp)
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{
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if (ftp->d_sock)
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{
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ftp_ret(ftp, "125 data connection already open; transfer starting");
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return (0);
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}
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else if (ftp->data_state == DATA_ACTV)
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return (dconn_open_actv(ftp));
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else if (ftp->data_state == DATA_PASV)
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return (dconn_open_pasv(ftp));
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else
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{
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console_msg(1, "dconn_open() called but no dconn available");
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return (-1);
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}
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}
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int dconn_close(t_ftp *ftp)
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{
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ftp_ret(ftp, "226 closing dataconn");
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close(ftp->d_sock);
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ftp->d_sock = 0;
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return (0);
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}
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