simple sftp client

Program execution Flow:1. Creating socketssockfd = socket(AF_INET, SOCK_STREAM, 0)2. Zeroing the structure servaddrbzero(servaddr, sizeof(servaddr))3. Place the address cluster asAF_INETservaddr.sin_family = AF_INET4. Port number set to 13IP address and port number in an internetwork socket address structure These 2 members must use a specific formatHtons host to network short integer, to convert binary port numberservaddr.sin_port = htons(13)5. Transform the ASCII dot decimal string (IP address

Always wanted to practice the MVP Model development and application, the study of Rxjava, retrofit and other popular open source libraries, so wrote a news reading software,There are three modules of news, pictures, video, using retrofit and okhttp to achieve no net read cache, a network based on the expiration Time re-request,There are edge or full page side-by-side, Night mode switch and other small functions, but also wrote a few custom small controls, although no egg, but learned a lot of th

In this article we share a simple chat room instance source under Android based on socket clientEstablish an Android client:Import Java.io.BufferedWriter;Import java.io.IOException;Import Java.io.InputStreamReader;Import Java.io.OutputStreamWriter;Import Java.net.Socket;Import java.net.UnknownHostException;Import Java.util.date;Import Android.support.v7.app.ActionBar;Import android.support.v4.app.Fragment;Import Android.os.AsyncTask;Import Android.os.

; Bufferedoutputstream OS = null; try {URL url = new URL (imgurl); This.getservletresponse (). setContentType ("application/x-msdownload;"); This.getservletresponse (). SetHeader ("Content-disposition", "attachment; Filename= "+ New String (Filename.getbytes (" Utf-8 ")," iso8859-1 ")); This.getservletresponse (). SetHeader ("Content-length", String.valueof (Url.openconnection (). GetContentLength ())); is = new Bufferedinputstream (Url.openstream ());