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POWhy this is not working ? libcurl & c++
 

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  1. POWhy this is not working ? libcurl & c++
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    <p>I am new to libcurl and am trying to get filelist from a server using ftp, going through the examples and some other posts here, I have come up with the following code. But when I run it, it returns error message :</p> <blockquote> <p>Failed writing body (4294967295 != 129)</p> </blockquote> <p>in the error string set by CURLOPT_ERRORBUFFER. The <code>curl_easy_strerror( res )</code> returns:</p> <blockquote> <p>Failed writing received data to disk/application</p> </blockquote> <pre><code>struct FtpFile { const char *filename; FILE *stream; }; static size_t fileWrite( void *buffer, size_t size, size_t nmemb, void *stream ) { struct FtpFile *out=(struct FtpFile *)stream; if(out &amp;&amp; !out-&gt;stream) { out-&gt;stream=fopen(out-&gt;filename, "wb"); if(!out-&gt;stream) { cout &lt;&lt; out-&gt;filename &lt;&lt; " open failure [fileWrite] " &lt;&lt; endl; return -1; } } size_t written = fwrite(buffer, size, nmemb, out-&gt;stream); cout &lt;&lt; written &lt;&lt; endl; if(written &lt;= 0) cout &lt;&lt; "Nothing written : " &lt;&lt; written; return written; } void getFileList( const char* url, const char* fname ) { CURL *curl; CURLcode res; FILE *ftpfile; const char *errmsg; ftpfile = fopen(fname, "wb"); if ( ftpfile == NULL ) { cout &lt;&lt; fname &lt;&lt; " open failure [getFileList] " &lt;&lt; endl ; return; } curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, url); curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fileWrite); curl_easy_setopt(curl, CURLOPT_WRITEDATA, ftpfile); curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errmsg); curl_easy_setopt(curl, CURLOPT_USERNAME, "username"); curl_easy_setopt(curl, CURLOPT_PASSWORD, "password"); curl_easy_setopt(curl, CURLOPT_FTPLISTONLY,TRUE); res = curl_easy_perform(curl); if(res != CURLE_OK) { fprintf( stderr, "curl_easy_perform() failed: %s\nError Message: %s\n", curl_easy_strerror( res ), errmsg ); } curl_easy_cleanup(curl); } fclose(ftpfile); } int main(int argc, char *argv[]) { getFileList( "ftp://ftp.example.com/public/somefolder/", "file-list.txt" ); system("PAUSE"); return EXIT_SUCCESS; } </code></pre>
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