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passive_command.c
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passive_command.c
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/*
** passive_command.c for passive_command in /home/nasrat_v/Dev/rendu/tek2/C/Systeme-Unix/Reseau/PSU_2016_myftp
**
** Made by Valentin Nasraty
** Login <[email protected]>
**
** Started on Tue May 16 23:35:31 2017 Valentin Nasraty
** Last update Sun May 21 22:31:43 2017 Valentin Nasraty
*/
#include "server.h"
char *concat_prefix_pwd_and_arg(char *pwd, char *file)
{
int i;
int n;
char *str;
i = -1;
n = -1;
if ((str = malloc(sizeof(char) * (strlen(pwd) + strlen(file) + 1))) == NULL)
return (NULL);
while (pwd[++i])
str[i] = pwd[i];
str[i++] = '/';
while (file[++n])
str[i++] = file[n];
str[i] = '\0';
return (str);
}
short exec_bin_pass(t_server *srv, int srv_sock,
char **tab_msg, char *bin)
{
int ret_value;
if (tab_msg[1])
{
if (srv->pasv_mode == true)
{
if ((ret_value = exec_binary_with_arg_pass(tab_msg[1], srv_sock,
bin, srv->fd_client)) == 0)
srv->pasv_mode = false;
}
else
if ((ret_value = exec_binary_with_arg_act(tab_msg[1], bin, srv)) == 0)
srv->actv_mode = false;
return (ret_value);
}
if (srv->pasv_mode == true)
{
if ((ret_value = exec_binary_with_arg_pass(getcwd(NULL, 0), srv_sock,
bin, srv->fd_client)) == 0)
srv->pasv_mode = false;
}
else
if ((ret_value = exec_binary_with_arg_act(getcwd(NULL, 0), bin, srv)) == 0)
srv->actv_mode = false;
return (ret_value);
}
short check_list(char **tab_msg, int srv_sock,
bool *bad_arg, t_server *srv)
{
if (strncmp(tab_msg[0], "LIST", 4) == 0)
{
*bad_arg = false;
if (srv->pasv_mode || srv->actv_mode)
{
if (exec_bin_pass(srv, srv_sock, tab_msg, "/bin/ls -l ") == ERROR_FCT)
return (ERROR_FCT);
}
else
putstr_client("425 Use PORT or PASV first.\r\n", srv->fd_client);
}
return (0);
}
short check_retr(char **tab_msg, int srv_sock,
bool *bad_arg, t_server *srv)
{
if (strncmp(tab_msg[0], "RETR", 4) == 0)
{
*bad_arg = false;
if (srv->pasv_mode || srv->actv_mode)
{
if (exec_bin_pass(srv, srv_sock, tab_msg, "/bin/cat ") == ERROR_FCT)
return (ERROR_FCT);
}
else
putstr_client("425 Use PORT or PASV first.\r\n", srv->fd_client);
}
else
check_list(tab_msg, srv_sock, bad_arg, srv);
return (0);
}
short check_stor(char **tab_msg, int srv_sock,
bool *bad_arg, t_server *srv)
{
if (strncmp(tab_msg[0], "STOR", 4) == 0)
{
*bad_arg = false;
if (srv->pasv_mode || srv->actv_mode)
{
if (srv->pasv_mode)
{
if (store_file_pass(tab_msg[1], srv_sock,
srv->fd_client) == ERROR_FCT)
return (ERROR_FCT);
srv->pasv_mode = false;
}
else
{
if (store_file_act(tab_msg[1], srv) == ERROR_FCT)
return (ERROR_FCT);
srv->actv_mode = false;
}
}
else
putstr_client("425 Use PORT or PASV first.\r\n", srv->fd_client);
}
else
check_retr(tab_msg, srv_sock, bad_arg, srv);
return (0);
}