File Transfer Using Socket Programming In C++

By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. 2 Sockets!!! • Is it like this ??? • Electrical Sockets, used to transfer Electrical power 2. js file, will use plain Props and States to transfer data. HTTP (HyperText Transfer Protocol) Basics Introduction The WEB. Learn more. TCP File Transfer Socket Programming in Unix Using C Programming. It then binds on a well-known port using bind() and waits for connections from clients using the listen() system call. Setting this to any other size will slow down the transfer. Using select() is great if your application has to accept data from more than one socket at a time since it will block until any one of a number of sockets is ready with data. can you check if you reproduce 2mb/sec using this code? Thank you. Random numbers are a big deal in programming. This section focuses on the requirements of TCP/IP socket based Client/Server applications. We will use the bitwise operator "AND" to perform the desired task. It says that the transfer is complete and the resulting bitmap is the exact same size as the file that was sent. How can I do this. Overview This post will show how you can make a small and easy-to-use port scanner program written in Python. Socket programing is the key API for programming distributed applications on the Internet. Each socket in use has a type and one or more associated processes. I wrote this code to send any binary file from server to client (in our example, I am sending sample_file. On Windows, ‘file’ means a regular file and not, say, an empty directory. it is usually not used for the actual transfer of data. Concurrent Server handling Multiple Clients Code in C in Linux Platform //TCP SERVER Concurrent: multiple clients can be handled by this server //Now second client no need to wait for first client to close by finishing its task. Read RAW Socket in Unix Using C Programming. How to write a client/server program in c++ using sockets and run it on two ms-dos machines? Basically i wan't to write a file transfer program to transfer files between two ms-dos machines. IO's "Hello world" is a chat app in just a few lines of code. Next: Socket Programming in C/C++: Handling multiple clients on server without multi threading This article is contributed by Akshat Sinha. Please help me with sending of multiple image files at once using winsock. SAS/C & C++ Compiler R&D Slide 1 C Socket Programming Tutorial SHARE Session 5958 SAS Institute Inc. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute. This server uses the socket module exclusively. Fi access point. अंतरण - A File Transfer Program implemented in C using UNIX Socket API over Transmission Control Protocol. 2 official solution - TCP Iterative Client for File Transfer with Type-Ahead (developed by Prof. It would be nice to show a File Transfer over Sockets, possibly using ‘sendfile’ ?. Writing Remote Procedural Calls (RPCs) in C. At this point, connection is established between client and server, and they are ready to transfer data. Here is the code for a client and server which communicate using a stream socket in the Unix domain. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. How can I do that? Using read and write whit sockets I have problem with buffer size of both client and server. Every server is a program that runs on a specific system and listens on a specific port. NET Core Web Sockets is implemented as a middleware, so to use WebSockets in ASP. geeksforgeeks. Core, Security, SSH. Basically the client connects to the server, the server sends the message "Hello World", and the client prints the received message. Im trying to send a image using socket but I have to send the file name as well. APIs that use an address expect it to be in a certain format, depending on whether the socket was created with socket. ← Linux c socket,client,server transfer file傳送檔案 從隨身碟安裝作業系統超簡單! 1 關於 “ Linux c socket,client,server transfer file with multi-thread,多執行緒傳送檔案 ” 的評論. All video and text tutorials are free. Socket Programming (cont. Understand TCP socket programming by developing a simplified FTP client that works with any standard FTP server. With its support for third-party libraries and structured documentation, C is an ideal language to write network. socket-- builtin Python module. 3) Inside client package use objects of DatagramSocket class and DatagramPacket class. The same method can be used to program an AtMege328P in a stand-alone circuit (breadboard or PC board) using the programming cable. Java & C Programming Projects for $30 - $250. Advantages of Using Several Files How to Divide a Program between Several Files Organisation of Data in each File The Make Utility Make Programming Creating a makefile Make macros Running Make Program Listings hello. This page contains simple Java example programs for Stack Using Array And Class Java Example Program with sample output. The following example program is a server. The message sent by client is the name of file. A TCP/IP is a connection-oriented communication, send the data packets over the network and ensures that data is delivered to the correct destination. अंतरण - A File Transfer Program implemented in C using UNIX Socket API over Transmission Control Protocol. Therefore, applications using stream sockets should place this call in a loop, calling this function until all data has been received. Finally, a library that simplifies the use of asynchronous sockets is presented. Close the socket connection! socket File Transfer using TCP [Java. 2 using Select - TCP Iterative Client for File Transfer with Type-Ahead; Lab 3. sending file using sockets with C. C program for file Transfer using UDP Data can be transferred between two computers using Socket programming in C. Almost all modern operating systems support socket layer to transfer data using TCP or UDP. How do we build Internet applications? In this lecture, we will discuss the socket API and support for TCP and UDP communications between end hosts. Here we will see how to do multiple client server file transfer using Socket Programming. Library for tcp/ip file transfer protocols like zmodem, xmodem, xmodem-1k, ymodem, ascii, modbus, kermit, telnet mail, protocols modbus. If you get unknown for state, or other errors, check your wiring! You may also need to powercycle or disconnect parts from the chip to get it into a good programming state. The program will only transfer the remainder. Instead, it will instruct the remote server to open a network connection to a host name and port number specified by you, and treat that network connection as if it were the main session. With its support for third-party libraries and structured documentation, C is an ideal language to write network. by Jeff Bezanson Getting to Know RPCs Perhaps you are bored of writing programs that run on only one computer at a time—how limiting! If so, you'll be glad to hear that there's a tool designed to get your programs on the network in a hurry: remote procedure calls (RPCs). Note that this guide is not a C++ tutorial: we assume that the reader is familiar with the language. Close the socket connection! socket File Transfer using TCP [Java. Document collaboration. How to C# Socket programming C# simplifies the network programming through its namespaces like System. How to transfer or copy a file between computers using java RMI Posted by Imed Bouchrika on January 15, 2015 in Java RMI No Comments This is a simple Java project using RMI to show you the basics of how to transfer a file from one computer to another. This is the best example of using udp I have found. If you want to know about socket programming with perl(1) then see below but you should read everything first. Allow users to concurrently edit a document and see each other's changes. This is a very simple powershell script to transfer a file to a list of computes contained in a text file. This article presents an example of using class CSocket. For example, send() is similar to write() but allows to specify some options. I wrote this code to send any binary file from server to client (in our example, I am sending sample_file. Message Queue in Unix Using C Programming. How do we build Internet applications? In this lecture, we will discuss the socket API and support for TCP and UDP communications between end hosts. The message sent by client is the name of file. There are methods Socket. Concurrent Server handling Multiple Clients Code in C in Linux Platform //TCP SERVER Concurrent: multiple clients can be handled by this server //Now second client no need to wait for first client to close by finishing its task. Hello there !!!!! I got some problems trying to transfer a file through sockets. Installing and configure DHCP server and write a program (C++\Python\Java) to install the software on remote machine. Socket Programming In Python 1. String copy without using strcpy in c 15. The analogy of creating a socket is that of requesting a telephone line from the phone company. This tutorial will help you to know about concept of TCP/IP Socket Programming in C and C++ along with client server program example. If you want to read the files out of a zip file or write files into a zip, then that's what you'd use ZipInputStream and ZipOutputStream for. Using established technology and software stacks built by TI's third-party ecosystem, it's now possible to accelerate generic C/C++ programs by automatically creating TI and Intel co-dependent executables, aka "heterogeneous programming" for c66x and x86 cores. Demonstrate TCP 3-way handshake, transfer of a text file, and closing a TCP connection using a client-server architecture. i am using TCP connection. Now the server checks whether there exists this file or not. Random numbers are a big deal in programming. Home » ajava » Create an application which transfer file form server to client using UDP in JAVA Create an application which transfer file form server to client using UDP in JAVA Unknown. That's all. Shared Memory in Unix. Prepare all Socket Programming objective questions and answers, Socket Programming subjective questions, Socket Programming interviews questions and answers, Socket Programming IT interview questions and answers,interview questions on Socket Programming,interview questions and answers on Socket Programming, Socket Programming interview questions and answers for freshers, Socket Programming. Send and Receive (Transfer) integer over socket using C program C Programs , Linux Networking , Linux, OS Concepts and Networking , Programming Languages / Following the simple example which shows how we can send and receive an integer over a socket. Design a File Transfer Protocol (FTP) application for communication over a computer network by means of TCP protocol, with client-server network architecture using socket programming. Before writing a program that communicates with an NTP server, you are going to manually test your knowledge of ntpdate. This post introduces Wangle, a C++ library for building protocols, servers, and clients in an asynchronous, clean, composable, and scalable manner. This is whole list of languages that you can easily handle communication with using…. 1 and I am using it in ubuntu. i am using TCP connection. when i use socket. sample c program to send the data from client to server; tcp socket sample; http://forgetcode. There is one horrible problem using socket. Advanced C Programming course will be delivered by our Founder/Director who is an Expert with 20+ years of experience in Linux Kernel and SAN software development. 5) Using object of DatagramPacket class send the byte array to the client system. can you check if you reproduce 2mb/sec using this code? Thank you. Im trying to send a image using socket but I have to send the file name as well. Socket programing is the key API for programming distributed applications on the Internet. Stream sockets are appropriate, for example, for implementations such as the File Transfer Protocol (FTP), which facilitates transferring ASCII or binary files of arbitrary size. thankful for the replies. Then again write reply from server program. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute. You can build over your code of project part 1, by making necessary changes and additions as described in the requirements of this part of the project. I'm not going to talk about it here, except to warn you that you need to use flush on sockets. A file descriptor is just an. Telnet This Protocol uses 23 Port Number. The above code reads in a file and sends it over a network connection. Consider the following scenario: 1) Thread A acquires a Fd from Socket by unsafeFdSocket. Transferring file using UDP Our example has two applications. There isn't anything much to say about sending and receiving data from an open socket because it is just a file and you can use the standard read and write functions that you would use to work with a file. Compile the program using the WinOLPC tools from Roboguide. I connected the dots so that you don't have to :). The certificates to setup this connection can be found on the Avaya Aura Contact Center machine under the location D:\Avaya\Contact Center\Manager Server\iccm\sgm\TLSCertificates\AESCerts. The program works by starting the server with "server " and the client with "client " where is a complete path to either a file or directory. Off hand, I dont know which company would be a great fit to buy Fitbit. connect(hosname, port ) opens a TCP connection to hostname on the port. Java & C Programming Projects for $30 - $250. You have tighter control over what is sent, you can optimize the streams, by buffering, or compressing date. This tutorial will help you to know about concept of TCP/IP Socket Programming in C and C++ along with client server program example. Shared Memory in Unix Using C Programming. Now The bind() call passes the socket file descriptor, the address structure, and the length of the address structure. Setting this to any other size will slow down the transfer. As part of its standard library, Python also has classes that make using these low-level socket functions easier. I want to transfer a file as it is via a socketnot read the file contents and send it. We will use the bitwise operator "AND" to perform the desired task. One thought on " File Server and Client Using Sockets in C++ " Raphael June 12, 2015 at 15:15. Using raw sockets is discussed in the ``Advanced topics'' section in this chapter. String concatenation in c without using strcat 13. Insert a sufficiently charged battery pack into the camera. Read RAW Socket in Unix Using C Programming. Server side :-----my problem : how to receive file from multiple clients and save file on server c:\folder. but I will convert it to winsock tomorow night). Socket programming resembles the file IO as does the Serial Communication. Now I dont have that because I am trying to upgrade to a new compiler : CodeGear C++ Builder 2009. *; class CopyDataFiletoFile {. If your programming games, chat programs, streaming media, file transfer use sockets and read/write bytes. Off hand, I dont know which company would be a great fit to buy Fitbit. You should be able to follow the code if you have experience programming in another language. This project is cross platform file transfer application built in C using socket programming This project is cross platform file. Basically the client connects to the server, the server sends the message "Hello World", and the client prints the received message. Press the lock button to ensure the microcontroller is connected to the board. You may use Python, Java, or C++/C as the programming language. It should work on both the Unix (tested under Linux, RedHat 7. The control implements the standard protocols for sending and receiving files over the Internet and corporate intranets, and can be used in a wide variety of programming languages which can use ActiveX components. The GNU C Library provides two ways to access the contents of files. VC++ had no CInternetSession , CFtpConnection , CAsyncSocket , CSocket , or Socket MFC classes back then, so I wrote in the FTP functionality from scratch, creating custom sockets classes to handle the control and data connections. Socket Programming. The example code uses this approach. Socket is used to communicate between network processes. URL Processing − This would be covered separately. The server app returns a reply. Programming examples are included throughout the text. Wangle is heavily influenced by the JVM-based libraries Netty, a Java network application framework, and Finagle, a Scala RPC system built at Twitter on top of Netty. You can use sockets programming to have two applications communicate with each other. Press J to jump to the feed. Cross-platform C++ programming with wxWidgets; Sockets are used to send and receive data on a network such as the Internet. Stream sockets use TCP (Transmission Control Protocol), which is a reliable, stream oriented protocol, and datagram sockets use UDP (Unix Datagram Protocol), which is unreliable and message oriented. A Server Socket Program ( Server ) and a Client Socket Program ( Client ). This method has two parameters, first is the url of the file you want to download and the second parameter is path to local disk to which you want to save the file. Socket programming using C 1. The client in socket programming must know two information: IP Address of Server, and; Port number. If you get unknown for state, or other errors, check your wiring! You may also need to powercycle or disconnect parts from the chip to get it into a good programming state. 0 VMware Workstation 11 This document supports the version of each product listed and supports all subsequent versions until the document is replaced. 1998 Writing Client/Server Programs in C Using Sockets (A Tutorial). On most Unix platforms ‘file’ includes empty directories, symbolic links, fifos and sockets. thankful for the replies. Write a c program to print the string from given character. And add WebSockets middleware to the configure method and need to handle the web socket requests. 1 Socket Programming with TCP. You are currently viewing LQ as a guest. but I will convert it to winsock tomorow night). Delphi socket components (wrappers for the Winsock) streamline the creation of applications that communicate with other systems using TCP/IP and related protocols. Client side code-----. We get asked about this all the time. - Goto File - Upload Using Programmer - Programmer LEDs will indicate programming status - On completion, the OK LED will again fade on/off. NET Framework. Here i will offer one rpc insteading raw socket programming. Tags for File Transfer Using TCP in C. We hope that this guide will prove useful for anyone with basic C++ and Windows API experience and will help them learn the basics and certain specifics of WinAPI IOCP programming. A Socket is an End-Point of To and From (Bidirectional) communication link between two programs (Server Program and Client Program ) running on the same network. If you want to know about socket programming with perl(1) then see below but you should read everything first. This section focuses on the requirements of TCP/IP socket based Client/Server applications. This mechanism can be overridden by system properties. If you have the OneDrive desktop app for Windows installed on a PC, you can use the Fetch files feature to access all your files on that PC from another computer by going to the OneDrive website. BTW, Kurose/Ross only cover Java socket programming and not C socket programming discussed below. Note: substitute socket. File descriptors can also refer to other objects that do not normally exist in the file system, such as anonymous pipes and network sockets. This will accomplish the bulk of actual data transfer, but we still need to do quite a bit of configuration on our system to match our previous machine. In other respects, using a SecureSocket object is the same as using a Socket object. How to C# Socket programming C# simplifies the network programming through its namespaces like System. It extracts the first connection request on the queue of pending connections for the listening socket, sockfd, creates a new connected socket, and returns a new file descriptor referring to that socket. but i dont want to wait for data. Almost all modern operating systems support socket layer to transfer data using TCP or UDP. Next, add a new project. My server programs runs on the Linux and file is transferred by a web browser installed in windows using HTTP POST over the network. A Server Socket Program ( Server ) and a Client Socket Program ( Client ). Java Code Socket Programming For File Transfer Codes and Scripts Downloads Free. Here is the problem: Each. But if it's. On the server side we write a program with C. This java example program also expain the concepts for clearly. CS 5413: High Performance Systems and Networking. You always have a socket. Client side code-----. Socket pr ogramming shows how to use socket APIs to establish communication links between r emote and local pr ocesses. Press J to jump to the feed. The following code shows how to download file synchronously. The server is creating a DatagramSocket and waiting to get DatagramPacket. Socket is a mechanism which provides connection between two process or system by using network stacks. September 3, 2014. I am new to socket programming and used a textbook from school. TCP File Transfer Socket Programming in Unix Using C Programming. In socket programming, you can implement this module to transfer python objects between clients and servers. This is a very simple powershell script to transfer a file to a list of computes contained in a text file. geeksforgeeks. On the server side we write a program with C. Sockets are an inter-process network communication implementation using a Internet Protocol (IP) stack on an Ethernet transport. Net Windows. Sockets can be used in many languages like Java, C++ etc but here in this article, we will understand the socket communication in its purest form (i. 0) platforms. To specify, for example, the filename or control authentication and permission. connect(hosname, port ) opens a TCP connection to hostname on the port. Socket is just a OS interprocess communication layer. Android Client-Server Using Sockets - Client Implementation by GuRu · Published November 1, 2016 · Updated February 6, 2017 In this Android Client-Server Using Sockets post we will be focusing on client side implementation. You should not use it in a source file either (bad habit). NET socket application. Re: Transfer Files: using socket programming plz suggest me a good tutorial that gives "TRANSFER A FILE" using sockets. First, let's see how Java Network API is designed to support development of network applications that make use of UDP. As the book progresses, socket programming will be covered, followed by how to design servers and the pros and cons of multithreaded and event-driven architectures. File Transfer Protocol (FTP) using Client-Server socket programming. To be more precise, it's a way to talk to other computers using s. Because the internet has no governing body and does not belong to any government there is no control over what users are selling or buying or whether there is ethical, […]. After that, write something from client program. Shared Memory in Unix Using C Programming. Transferring a text file in Socket Programming in TCP File transfer program in java using TCP made Simple. Selecting this checkbox will use the file copy time for cleanup. ftp, command, file transfer protocol, automate, automation, schedule, task, scheduler, zip, copy; HS FTP Client C Source Library 1. Though that may seem silly, it’s the basis for just about every computer game ever invented. A good introduction to sockets programming in C, is Michael J. com/C/1477. and used in both socket connection and file. Recommend:python - TCP Socket file transfer oblem i don't totally understand. The member iov_len in each case determines the maximum receive length and the actual write length, respectively. It generates random numbers. To read in a file, a stream for this file is created by passing the filename to the OpenRead. How to use the pickle module to transfer python object structures? When you use pickle along with sockets, you can absolutely transfer anything through the network. Socket adalah penghubung (bisa disebut juga dengan media) untuk berkomunikasi antara 2 program. One mathematical function in C programming that’s relatively easy to grasp is the rand() function. So problem was to convet it to a Non-MFC based program. A socket is an endpoint of communication to which a name may be bound. Java Code Socket Programming For File Transfer Codes and Scripts Downloads Free. Net Windows. Press the lock button to ensure the microcontroller is connected to the board. Tic Tac Toe AI [ Minimax Algorithm ] with GUI using JavaFX [Tic Tac Toe][Artificial Intelligence][Minimax][Java][JavaFX]. h - They use /etc/hosts or a name. After you click Append, WinSCP opens another prompt that lets you append source file or resume your transfer. org or mail your article to [email protected] Net Windows Application. FILE is the name of the new file that should be created. My objective is later to see this working in Android before using. Sockets; I Hope you will understand the File Transfer operation in a C#. which type of socket, our application should use, we need. Simple File Transfer to Multiple Computers - Script Center - Spiceworks Home. You always have a socket. c and client. I have a requirement like receive an xml file,do some processing and send back the xml file. This is useful in cases where some families may have more than one protocol to support a given type of service. The netcat client program allows you to open a UDP or TCP socket to a port and transfer data. This is a very simple powershell script to transfer a file to a list of computes contained in a text file. Socket Programming (cont. 3 on IA-32) I can compile a socket. The SharkParseCert tool can either produce the SharkSSL certificate as C code or as a binary file. C++ will let you dig deep and see the insights of what actually is going on at the lower level although good concept and knowledge in computer networks is not debatable. FILE * For C File I/O you need to use a FILE pointer, which will let the program keep track of the file being accessed. A particular protocol may also be requested. All of this information can be gleaned from the results of the getaddrinfo() call, which rocks. Sockets allow communication between two different processes on the same or different machines. A Simple Stream Client Program Example. Send and Receive a file in socket programming in Linux with C/C++ (GCC/G++) - Stack OverflowThis application allows you to transfer files from one device to other within wireless network. Tutorial No 8 in Socket Programming : Transferring a text file. I wrote this code to send any binary file from server to client (in our example, I am sending sample_file. Fi access point. The difference with sockets programming in a language like Python is in the helper classes and methods that can simplify sockets programming. file transfer program in c using tcp; file transfer using socket programming in c; program for file transfer using tcp in c. Note, we do not cover the UDP API in the course. A study was also conducted on client server programming approach. Reading and writing strings to a file 6. The message sent by client is the name of file. Now comes the major part :- 1. CSCE 313: Introduction to Computer Systems Networking Programming 16 What is a socket? • All I/O in Unix is through file descriptors, including communication with a computer across Internet. char name[100],fileread[100],fname[100],ch,file[100],rcv[100];. as opening a le in the le system, creating a socket connection with another process, creating a linked-list of objects, etc. Even though sockets and files share. You may find the socket is labelled Aux In instead. But if you plan to reuse your socket for further transfers, you need to realize that there is no EOT on a socket. This often breaks things when one wants to use non-standard devices, like USB-to-serial converters. You're now ready to use the EchoServer. You may also need to change the programming frequency. Prepare all Socket Programming objective questions and answers, Socket Programming subjective questions, Socket Programming interviews questions and answers, Socket Programming IT interview questions and answers,interview questions on Socket Programming,interview questions and answers on Socket Programming, Socket Programming interview questions and answers for freshers, Socket Programming. Java Code Socket Programming For File Transfer Codes and Scripts Downloads Free. I just want to save an audio file and want to get to other computer thats all. To be sure, this is no substitute for Apache or Zope. How to transfer or copy a file between computers using java RMI Posted by Imed Bouchrika on January 15, 2015 in Java RMI No Comments This is a simple Java project using RMI to show you the basics of how to transfer a file from one computer to another. Perform a case study about the different routing algorithms to select the network path with its optimum and economical during data transfer. JDK Tutorials - Herong's Tutorial Examples ∟ HTTPS (Hypertext Transfer Protocol Secure) ∟ Using SO_LINGER Socket Option A tutorial example is provided to show how to use the SO_LINGER socket option to prevent the server closing the socket too soon after writing the response to the socket. The GNU C Library provides two ways to access the contents of files. URLs that discuss this topic and lists of functions that are useful are appreciated, and some sample source code are highly appreciated. 2 Sockets!!! • Is it like this ??? • Electrical Sockets, used to transfer Electrical power 2. TCP Sender/client Program Example. BMP file over sockets and am having an issue with the received file. 137 thoughts on “ Socket programming in C on Linux – The Ultimate Guide for Beginners ” Michael. I have to make a server-client file transfer using UDP. getElementsByTagName(s)[0],p=/^http:/. Files that do not support seeking-for example, terminals-always read from the current position. In this Java Network programming tutorial, you will learn how to code a client/server application based on UDP protocol. Because the internet has no governing body and does not belong to any government there is no control over what users are selling or buying or whether there is ethical, […]. Microsoft provides very useful guides on how to go about creating a client and a server using their Winsock library but I just wanted to add clarification and guide those who are using it for game programming and explain how I used it. 3) Inside client package use objects of DatagramSocket class and DatagramPacket class. August 6, 2019 at 5:05 pm. Im trying to send a image using socket but I have to send the file name as well. Hello there !!!!! I got some problems trying to transfer a file through sockets. There is a caveat that the source file descriptor must support mmap (as in, be an actual file, not a socket), and the destination must be a socket (so you can't use it to copy files, or send data directly from one socket to another); it is designed to support the usage you describe, of sending a file to a socket. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: