#include?
#include?
#include?
#include?
#include?
#include?

#include?“client_process.h“


int?handle_server_ack（sockfd）
{
????int?ret;
????uint32_t??body_len;
????uint32_t??total_len;
????msg_head_ctrl_t?*msg;

????ret?=?recv（?sockfd?&body_len??sizeof（body_len）?MSG_PEEK）;
????if?（?ret<=0?）{
????????printf（“connectionn?lost?...?\n“）;
????????exit（-1）;
????}

????body_len?=?ntohl（body_len）;
????total_len?=?body_len?+?sizeof（msg_head_ctrl_t）;

????msg?=?malloc（?total_len?+?1?）;
????if?（?NULL?==?msg?）{
????????perror（“out?of?memeory\n“）;
????????return?;
????}
????memset（?msg?0?total_len?+?1）;

????ret?=?recv（?sockfd?msg??total_len?MSG_WAITALL）;
????if?（?ret<=0?）{
????????printf（“connectionn?lost?...?\n“）;
????????exit（-1）;
????}

????msg->body_len?=?ntohl（msg->body_len）;
????msg->command??=?ntohl（msg->command）;
????if?（?（COMMAND_LS==msg->command）?||?（COMMAND_PWD==msg->command）?）{
???????printf（“\n%s\n“msg->msg_body）;
????}
????else?if?（?COMMAND_GET?==?msg->command?）{
????????save_file_to_disk（msg->msg_body）;
????}

????free（msg）;
}

int?send_command_to_server（?int?sockfd?char?*user_input?command_type_t?type）
{
????ssize_t?ret;
????msg_head_ctrl_t?*msg;
????int?body_len;
????int?total_len;

????body_len?=?strlen（user_input）;
????total_len?=?body_len?+?sizeof（msg_head_ctrl_t）;
????msg?=?malloc（total_len）;
????if?（?NULL?==?msg?）{
????????printf（“out?of?memeory!\n“）;
????????return?FAILED;
????}

????msg->command?=?htonl（type）;
????msg->body_len?=?htonl（body_len）;

????memcpy（msg->msg_body?user_input?body_len）;
????ret?=?send（sockfd?msg?total_len?0）;
????if?（?ret?????????printf（“connection?lost?...\n“）;
????????free（msg）;
????????return?SOCK_ERROR;
????}???????

????free（msg）;
????return?SUCCESSFUL;
}


int?get_file_from_server（int?sockfd?char?*user_input?command_type_t?type）
{
????int?ret;
????int?fd=-1;
????uint32_t?len;
????fd_set??fs_client;
????struct?timeval?timeout;

????msg_head_ctrl_t?*msg;


????ret?=?send_command_to_server（sockfd?user_input?type）;
????if?（?ret?!=?SUCCESSFUL）{
???????return?ret;
????}


????msg?=?malloc（sizeof（msg_head_ctrl_t）?+?MAX_READ_BYTES?+?1）;
????if?（?NULL?==?msg?）{
????????printf（“out?of?memory!\n“）;
????????return?FAILED;
????}


????while（true）{
???????FD_ZERO（&fs_client）;
???????FD_SET（?sockfd?&fs_client）;

???????timeout.tv_sec?=?DEFAULT_CLIENT_TIME_OUT;
???????timeout.tv_usec?=?0;

???????ret?=?select（sockfd+1?&fs_client?NULL?NULL?NULL）;
???????if?（?0?==?ret?）{
???????//time?out
???????????printf（“time?out....\n“）;
???????????ret?=?SOCK_ERROR;
???????????break;
???????}
???????if?（?-1?==?ret?）{
???????????continue;
???????}
??????
???????memset（msg?0?sizeof（msg_head_ctrl_t）?+?MAX_READ_BYTES?+?1）;
???????ret?=?recv（sockfd?&len?sizeof（msg->body_len）?MSG_PEEK）;
???????if?（ret?<=?0）{
???????????printf（“sock?error!\n“）;
???????????ret?=?SOCK_ERROR;
???????????goto?Exit;
???????}
???????
???????len?=?ntohl（len）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2010-01-23?11:08??tcp\
?????文件????????6764??2010-01-07?19:34??tcp\client_process.c
?????文件?????????355??2010-01-07?19:34??tcp\client_process.h
?????文件????????1843??2010-01-07?19:34??tcp\common.c
?????文件????????1401??2010-01-07?19:34??tcp\common.h
?????文件????????1279??2010-01-07?19:34??tcp\ftpclient.c
?????文件????????1769??2010-01-07?19:34??tcp\ftpserver.c
?????文件?????????340??2010-01-07?19:34??tcp\Makefile
?????文件????????5825??2010-01-07?19:34??tcp\serv_client.c
?????文件?????????157??2010-01-07?19:34??tcp\serv_client.h