129 lines
2.9 KiB
C
129 lines
2.9 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* server.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/04/02 15:02:48 by jhalford #+# #+# */
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/* Updated: 2017/11/15 12:47:20 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "ftp_server.h"
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#define FTP_SERVER_USAGE "%s <port>"
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char **g_av = NULL;
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char g_rootdir[PATH_MAX];
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t_ftp_cmd g_ftp_cmd[] =
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{
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{"USER", cmd_user, 0},
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{"QUIT", cmd_quit, LOG_YES},
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{"RETR", cmd_retr, LOG_YES},
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{"STOR", cmd_stor, LOG_YES},
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{"CWD", cmd_cwd, LOG_YES},
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{"PASV", cmd_pasv, LOG_YES},
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{"EPSV", cmd_epsv, LOG_YES},
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{"PORT", cmd_port, LOG_YES},
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{"PWD", cmd_pwd, LOG_YES},
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{"TYPE", cmd_type, LOG_YES},
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{"LIST", cmd_list, LOG_YES},
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{"MKD", cmd_mkd, LOG_YES},
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{"RMD", cmd_rmd, LOG_YES},
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{"DELE", cmd_dele, LOG_YES},
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{0, 0, 0},
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};
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int g_debug = 10;
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int ftp_cmd(t_ftp *ftp, char *msg)
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{
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int i;
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char **av;
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i = -1;
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while (g_ftp_cmd[++i].name)
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{
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if (ft_strncmp(msg, g_ftp_cmd[i].name,
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ft_strlen(g_ftp_cmd[i].name)) == 0)
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{
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if (ftp->log_state < g_ftp_cmd[i].statelock)
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return (FTP_RET(ftp, "530 not logged in"));
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if (!(g_ftp_cmd[i].f))
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break ;
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else
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{
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av = ft_strsplit(msg, ' ');
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return (g_ftp_cmd[i].f(ftp, av));
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ft_sstrfree(av);
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}
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return (0);
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}
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}
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FTP_RET(ftp, "502 command not implemented");
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return (1);
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}
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int ftp_spawn(int sock)
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{
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t_ftp ftp;
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char *msg;
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ftp.cmd_sock = sock;
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ftp.log_state = LOG_NONE;
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ftp.d_sock = 0;
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ftp.data_state = DATA_NONE;
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FTP_RET(&ftp, "220 ready for user");
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while (ftp.cmd_sock)
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{
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ftp_recv(ftp.cmd_sock, &msg);
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ftp_cmd(&ftp, msg);
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ft_strdel(&msg);
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}
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close(ftp.cmd_sock);
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return (0);
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}
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int ftp_daemon(int sock)
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{
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int cs;
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struct sockaddr_in csin;
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socklen_t cslen;
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pid_t pid;
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while (1)
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{
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cslen = sizeof(csin);
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cs = accept(sock, (struct sockaddr*)&csin, &cslen);
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if ((pid = fork()) < 0)
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return (-1);
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if (pid == 0)
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{
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close(sock);
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exit(ftp_spawn(cs));
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}
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close(cs);
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}
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close(sock);
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return (0);
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}
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int main(int ac, char **av)
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{
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int port;
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int sock;
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g_av = av;
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getcwd(g_rootdir, PATH_MAX);
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if (ac != 2)
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ft_usage(FTP_SERVER_USAGE, av[0]);
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port = ft_atoi(av[1]);
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if ((sock = create_server(port, 3, "tcp")) < 0
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|| ftp_daemon(sock) < 0)
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{
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perror(av[0]);
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return (1);
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}
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return (0);
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}
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