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POFailed to send file via socket
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  1. POFailed to send file via socket
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    copied!<p>I'm working with some C++ socket examples. The client run and can connect to the server but can't send the file. I think there's a problem with the <code>send()</code> but I can't fix it.Edit: the error message is "connection reset by peer"</p> <p>Any ideas are welcomed.</p> <p>I use OpenSuSE with QT 4.7.4</p> <p>Here's the send and receive function</p> <pre><code>void str_server(int sock) { char buf[1025]; const char* filename = "//home//romanov//Documents//HelloWorld-build-desktop-Qt_4_7_4_in_PATH__System__Release//ss.png"; FILE *file = fopen(filename, "rb"); if (!file) { cerr&lt;&lt;"Can't open file for reading"; return; } while (!feof(file)) { int rval = fread(buf, 1, sizeof(buf), file);//read value if (rval &lt; 1) { cerr&lt;&lt;"Can't read from file"; fclose(file); return; } int off = 0; do { int sent = send(sock, &amp;buf[off], rval - off, 0); if (sent &lt; 1) { // if the socket is non-blocking, then check // the socket error for WSAEWOULDBLOCK/EAGAIN // (depending on platform) and if true then // use select() to wait for a small period of // time to see if the socket becomes writable // again before failing the transfer... cout&lt;&lt;"Can't write to socket"; fclose(file); return; } off += sent; } while (off &lt; rval); } fclose(file); } </code></pre> <p>//===================</p> <pre><code>void RecvFile(int winsock) { int rval; char buf[1025]; FILE *file = fopen("//home//romanov//Documents//HelloWorld-build-desktop-Qt_4_7_4_in_PATH__System__Release//ss2.png", "wb"); if (!file) { printf("Can't open file for writing"); return; } do { rval = recv(winsock, buf, sizeof(buf), 0); if (rval &lt; 0) { // if the socket is non-blocking, then check // the socket error for WSAEWOULDBLOCK/EAGAIN // (depending on platform) and if true then // use select() to wait for a small period of // time to see if the socket becomes readable // again before failing the transfer... printf("Can't read from socket"); fclose(file); return; } if (rval == 0) break; //line 159 int off = 0; do { int written = fwrite(&amp;buf[off], 1, rval - off, file); if (written &lt; 1) { printf("Can't write to file"); fclose(file); return; } off += written; } while (off &lt; rval); } //line 175 while (1); fclose(file); } </code></pre>
 

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