void command_rget(int sfd_client, struct packet* chp)
{
char temp[LENBUFFER];
clear_packet(chp);
chp->type = REQU;
chp->comid = RGET;
send_packet(sfd_client, chp);
recv_packet(sfd_client, chp);
//printpacket(chp, HP);
while(chp->type == REQU)
{
if(chp->comid == LMKDIR)
{
strcpy(temp, chp->buffer);
command_lmkdir(temp);
}
else if(chp->comid == LCD)
{
strcpy(temp, chp->buffer);
command_lcd(temp);
}
else if(chp->comid == GET)
{
strcpy(temp, chp->buffer);
command_get(sfd_client, chp, temp);
}
recv_packet(sfd_client, chp);
//printpacket(chp, HP);
}
if(chp->type == EOT)
printf("\tTransmission successfully ended.\n");
else
fprintf(stderr, "There was a problem completing the request.\n");
}
int main(int argc, char* argv[])
{
//BEGIN: initialization
struct sockaddr_in sin_server;
int sfd_client, x;
size_t size_sockaddr = sizeof(struct sockaddr), size_packet = sizeof(struct packet);
short int connection_id;
struct packet* chp = (struct packet*) malloc(size_packet); // client host packet
set0(chp);
struct packet* data; // network packet
if((x = sfd_client = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
er("socket()", x);
memset((char*) &sin_server, 0, sizeof(struct sockaddr_in));
sin_server.sin_family = AF_INET;
sin_server.sin_addr.s_addr = inet_addr(IPSERVER);
sin_server.sin_port = htons(PORTSERVER);
if((x = connect(sfd_client, (struct sockaddr*) &sin_server, size_sockaddr)) < 0)
er("connect()", x);
printf(ID "FTP Client started up. Attempting communication with server @ %s:%d...\n\n", IPSERVER, PORTSERVER);
//END: initialization
struct command* cmd;
char lpwd[LENBUFFER], pwd[LENBUFFER]; //用作本地和FTP server端的当前工作区间名的缓冲区
char userinput[LENUSERINPUT];
while(1)
{
printf("\t> ");
fgets(userinput, LENUSERINPUT, stdin);
/* in order to give a filename with spaces, put ':'
instead of ' '. If a command needs x paths, and y (y > x) paths are
provided, y - x paths will be ignored.
*/
cmd = userinputtocommand(userinput);
if(!cmd)
continue;
//printcommand(cmd);
switch(cmd->id)
{
case GET:
if(cmd->npaths)
command_get(chp, data, sfd_client, *cmd->paths);
else
fprintf(stderr, "No path to file given.\n");
break;
case PUT:
if(cmd->npaths)
command_put(chp, data, sfd_client, *cmd->paths);
else
fprintf(stderr, "No path to file given.\n");
break;
case MGET:
if(cmd->npaths)
command_mget(chp, data, sfd_client, cmd->npaths, cmd->paths);
else
fprintf(stderr, "No path to file given.\n");
break;
case MPUT:
if(cmd->npaths)
command_mput(chp, data, sfd_client, cmd->npaths, cmd->paths);
else
fprintf(stderr, "No path to file given.\n");
break;
case MGETWILD:
command_mgetwild(chp, data, sfd_client);
break;
case MPUTWILD:
if(!getcwd(lpwd, sizeof lpwd))
er("getcwd()", 0);
command_mputwild(chp, data, sfd_client, lpwd);
break;
case CD:
if(cmd->npaths)
command_cd(chp, data, sfd_client, *cmd->paths);
else
fprintf(stderr, "No path given.\n");
break;
case LCD: // 改变local 工作区间
if(cmd->npaths)
command_lcd(*cmd->paths);
else
fprintf(stderr, "No path given.\n");
break;
case PWD:
command_pwd(chp, data, sfd_client);
break;
case LPWD: // local pwd
if(!getcwd(lpwd, sizeof lpwd))
er("getcwd()", 0);
printf("\t%s\n", lpwd);
break;
case DIR_:
case LS:
command_ls(chp, data, sfd_client);
break;
case LDIR:
case LLS:
if(!getcwd(lpwd, sizeof lpwd))
er("getcwd()", 0);
command_lls(lpwd);
break;
case MKDIR:
if(cmd->npaths)
command_mkdir(chp, data, sfd_client, *cmd->paths);
else
fprintf(stderr, "No path to directory given.\n");
break;
case LMKDIR:
if(cmd->npaths)
command_lmkdir(*cmd->paths);
else
fprintf(stderr, "No path to directory given.\n");
break;
case RGET:
if(!getcwd(lpwd, sizeof lpwd))
er("getcwd()", 0);
command_rget(chp, data, sfd_client);
if((x = chdir(lpwd)) == -1)
fprintf(stderr, "Wrong path.\n");
break;
case RPUT:
if(!getcwd(lpwd, sizeof lpwd))
er("getcwd()", 0);
command_rput(chp, data, sfd_client);
if((x = chdir(lpwd)) == -1)
fprintf(stderr, "Wrong path.\n");
break;
case EXIT:
goto outside_client_command_loop;
default:
// display error
break;
}
}
outside_client_command_loop:
/*
chp->type = REQU;
chp->conid = -1;
strcpy(path, argv[1]);
strcpy(chp->buffer, argv[1]);
//printpacket(chp, HP);
data = htonp(chp);
if((x = send(sfd_client, data, size_packet, 0)) != size_packet)
er("send()", x);
set0(data);
do
{
if((x = recv(sfd_client, data, size_packet, 0)) <= 0)
er("recv()", x);
chp = htonp(data);
if(chp->type == INFO)
printf(ID "Server says: %s\n", chp->buffer);
else if(chp->type == DATA)
{
//printpacket(chp, HP);
receive_file(extract_filename(path), sfd_client, chp);
}
}
while(chp->type != TERM);
fprintf(stderr, "TERM received; exiting...\n");
*/
close(sfd_client);
printf(ID "Done.\n");
fflush(stdout);
return 0;
}
