<p>I need to ftp files to a mainframe and it keeps truncating the files and need this option in order to prevent the truncation. Anyone know a go library that supports this or a way to prevent truncating the file without deleting the files on mainframe but maybe clearing it or something? </p>
<hr/>**评论：**<br/><br/>kjk: <pre><p>The most popular ftp library for Go is <a href="https://github.com/jlaffaye/ftp" rel="nofollow">https://github.com/jlaffaye/ftp</a></p>
<p>It doesn't seem to implement LRECL but you can implement it yourself. Looking at the code, it's literally few lines of code to implement a simple command. See e.g. implementation of "REIN" command <a href="https://github.com/jlaffaye/ftp/blob/master/ftp.go#L557" rel="nofollow">https://github.com/jlaffaye/ftp/blob/master/ftp.go#L557</a></p></pre>
