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/*
* Part of Very Secure FTPd
* Licence: GPL v2
* Author: Chris Evans
* readwrite.c
*
* Routines to encapsulate the underlying read / write mechanism (OpenSSL vs.
* plain read()/write()).
*/
#include "readwrite.h"
#include "session.h"
#include "netstr.h"
#include "ssl.h"
#include "privsock.h"
#include "defs.h"
#include "sysutil.h"
int
ftp_write_str(const struct vsf_session* p_sess, const struct mystr* p_str,
enum EVSFRWTarget target)
{
if (target == kVSFRWData)
{
if (p_sess->data_use_ssl)
{
return ssl_write_str(p_sess->p_data_ssl, p_str);
}
else
{
return str_netfd_write(p_str, p_sess->data_fd);
}
}
else
{
if (p_sess->control_use_ssl && p_sess->ssl_slave_active)
{
priv_sock_send_cmd(p_sess->ssl_consumer_fd, PRIV_SOCK_WRITE_USER_RESP);
priv_sock_send_str(p_sess->ssl_consumer_fd, p_str);
return priv_sock_get_int(p_sess->ssl_consumer_fd);
}
else if (p_sess->control_use_ssl)
{
return ssl_write_str(p_sess->p_control_ssl, p_str);
}
else
{
return str_netfd_write(p_str, VSFTP_COMMAND_FD);
}
}
}
int
ftp_read_data(const struct vsf_session* p_sess, char* p_buf, unsigned int len)
{
if (p_sess->data_use_ssl)
{
return ssl_read(p_sess->p_data_ssl, p_buf, len);
}
else
{
return vsf_sysutil_read(p_sess->data_fd, p_buf, len);
}
}
int
ftp_write_data(const struct vsf_session* p_sess, const char* p_buf,
unsigned int len)
{
if (p_sess->data_use_ssl)
{
return ssl_write(p_sess->p_data_ssl, p_buf, len);
}
else
{
return vsf_sysutil_write_loop(p_sess->data_fd, p_buf, len);
}
}
void
ftp_getline(const struct vsf_session* p_sess, struct mystr* p_str, char* p_buf)
{
if (p_sess->control_use_ssl && p_sess->ssl_slave_active)
{
priv_sock_send_cmd(p_sess->ssl_consumer_fd, PRIV_SOCK_GET_USER_CMD);
priv_sock_get_str(p_sess->ssl_consumer_fd, p_str);
}
else if (p_sess->control_use_ssl)
{
ssl_getline(p_sess, p_str, '\n', p_buf, VSFTP_MAX_COMMAND_LINE);
}
else
{
str_netfd_alloc(
p_str, VSFTP_COMMAND_FD, '\n', p_buf, VSFTP_MAX_COMMAND_LINE);
}
}
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