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POWinsock problems sending data C++
 

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  1. POWinsock problems sending data C++
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    <p>I'm trying to code a simple FTP client with Winsock. </p> <p>I have the following code:</p> <pre><code>using namespace std; #include &lt;iostream&gt; #include &lt;cstring&gt; #include &lt;cstdio&gt; #include &lt;winsock.h&gt; #include &lt;windows.h&gt; int main() { const int MAX_TRIES = 10; char * host = "localhost"; int port = 21; char * userName = "b8_8780454"; char * pass = "test"; char * testFileSource = "C:\\Windows\\notepad.exe"; WSADATA WSAData; SOCKADDR_IN server; SOCKET sock; WSAStartup(MAKEWORD(2,2), &amp;WSAData); sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); if (sock == INVALID_SOCKET) { cout&lt;&lt;"fail"; return -1; } server.sin_family = PF_INET; server.sin_port = htons(port); server.sin_addr = *((struct in_addr *)gethostbyname(host)-&gt;h_addr); memset(server.sin_zero,0,8); int errorCode = connect(sock, (LPSOCKADDR)&amp;server, sizeof(struct sockaddr)); int tries = 0; while (errorCode == SOCKET_ERROR) { if (tries &gt;= MAX_TRIES) { cout&lt;&lt;"fail 2"; return -1; } errorCode = connect(sock, (LPSOCKADDR)&amp;server, sizeof(struct sockaddr)); tries++; } char serverMsg[2048]; Sleep(1000); cout&lt;&lt;"Waiting for server response..."&lt;&lt;endl; int r = recv(sock,serverMsg,2048,0); serverMsg[r] = '\0'; cout&lt;&lt;endl&lt;&lt;endl&lt;&lt;"Server said: "&lt;&lt;endl&lt;&lt;serverMsg&lt;&lt;endl&lt;&lt;endl; char userB[1024] = "USER "; strcat(userB,userName); cout&lt;&lt;"Sending... "&lt;&lt;userB&lt;&lt;endl; cout&lt;&lt;"sended: "&lt;&lt;send(sock, userB, strlen(userB), 0)&lt;&lt;" bytes"&lt;&lt;endl; Sleep(1000); cout&lt;&lt;"Waiting for server response..."&lt;&lt;endl; serverMsg[0] = '\0'; recv(sock,serverMsg,2048,0); // &lt;-- program keeps lock here cout&lt;&lt;endl&lt;&lt;endl&lt;&lt;"Server said: "&lt;&lt;endl&lt;&lt;serverMsg&lt;&lt;endl&lt;&lt;endl; getchar(); return 0; } </code></pre> <p>I think the send is not working properly, nevertheless it is returning >0 but on the server side i can't see this client sending any data. I think i maybe a problem with the conection setup, but i have been checking some sites and I am not able to catch the error</p> <p>This is what the program prints:</p> <p>Waiting for server response...</p> <pre><code>Server said: 220-FileZilla Server version 0.9.31 beta 220-written by Tim Kosse (Tim.Kosse@gmx.de) 220 Please visit http://sourceforge.net/projects/filezilla/ Sending... USER b8_8780454 sended: 15 bytes Waiting for server response... Server said: 421 Login time exceeded. Closing control connection. by Tim Kosse (Tim.Kosse@gmx.de) 220 Please visit http://sourceforge.net/projects/filezilla/ </code></pre> <p>In my FTP server I can't see this client sending any data to the server. Any clue?</p>
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