getaddrinfo eai again

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Beej's Guide Network to Programming series serialization 10

upaddress structs with getaddrinfo (): Memset ( hints, 0, sizeof (hints )); Hints. ai_family = AF_UNSPEC; // use IPv4 or IPv6, whichever Hints. ai_socktype = SOCK_STREAM; // TCP Hints. ai_flags = AI_PASSIVE; // fill in myIP for me Getaddrinfo (NULL, "3490", hints, res ); // Make a socket Sockfd = socket (res-> ai_family, res-> ai_socktype, res-> ai_protocol ); // Bind it to theport we passed in to

Laravel-phpdocumentor/reflection-docblock Dowloading failed

via HTTPS, SSH protocols, aborting. -Https://github.com/phpDocumentor/ReflectionDocBlock.git Cloning into '/home/rd/www/laravel-dev/vendor/phpdocumentor/reflection-docblock ' ... Fatal:unable to access ' https://github.com/phpDocumentor/ReflectionDocBlock.git/': Could not resolve Host:github. COM- Git@github.com:phpdocumen

Improper configuration in multiple locations of Youku leads to path leakage and Multiple XSS and repair

Improper configuration at Youku leads to path leakage and Multiple XSS (at least 20)XSS is mainly because the vid parameter is not processed, many web pages use the vid parameter to call video links.Don't underestimate XSSImproper configuration:Http://realplayer.youku.com/list.php? Cls = 104Http://realplayer.youku.com/detail.php? Id = errorWarning: Invalid argument supplied for foreach () in/real/WebSite/htdocs/guide.cn.real.com/newsite/youku/list.php on line 34Warning: simplexml_load_file () [f

High-performance networks in Google Chrome (ii)

designer can embed the following statement in the page to request a browser to pre-parse: A typical example of this requirement is redirection (redirects). Chrome itself has no way of judging this pattern, and in this way it allows the browser to parse it ahead of time.The implementation is also different depending on the version, in general, there are two main implementations of DNS processing in Chrome: 1. Based on historical data (historically), by invoking the platform-independent

Android 4.1 Netd detailed analysis (6) DnsProxyListener

protocol // int DnsProxyListener: GetAddrInfoCmd: runCommand (SocketClient * cli, int argc, char ** argv) {if (DBG) {for (int I = 0; I Then, the data obtained from the Framework command will be parsed and assigned to the GetAddrInfoHandler constructor in the form of an addrinfo struct as the parameter. Then, the start () method will be used. // Start () and threadStart () functions void DnsProxyListener: GetAddrInfoHandler: start () {pthread_create ( mThread, NULL, DnsProxyListener: GetAddrInf

Example of apue2 ruptime and ruptimed Program

This example is a C/SProgramThere are four files: ruptime. c clconn. c ruptimed. c initsrv1.c, where ruptime. C and clconn. C constitutes the client, ruptimed. c initsrv1.c is a server. The client sends a request to the server. After receiving the request, the server runs the uptime command and returns the result to the client. The compilation and running methods are as follows: 1.Edit the/etc/services file and append the file. Ruptime 4000/tcp # example program of apue2 Restart the system

Example of running in chapter 16 of apue16-14

error "); } Int main (INT argc, char * argv []) { Struct addrinfo * AIP, * ailist; Struct addrinfo hint; Int err, sockfd; If (argc! = 2) Err_quit ("Usage: ruptime hostname "); Hint. ai_family = 0; Hint. ai_flags = 0; // ai_canonname; Hint. ai_socktype = sock_stream; Hint. ai_protocol = 0; Hint. ai_addrlen = 0; Hint. ai_canonname = NULL; Hint. ai_addr = NULL; Hint. ai_next = NULL; If (ERR = getaddrinfo (argv [1], "ruptime", hin

Network-based programming of Linux application design

without hostname), Getaddrinfo (Automatic identification of IPV4 address and IPV6 address). GETHOSTBYNAME (hostname conversion to IP) and gethostbyaddr (IP address conversion without hostname) involve a hostent structure:struct Hostent {char *h_name;/* official host name */char **h_aliases;/* host alias */int h_addrtype;/* address type */int h_length;/* address length */char **h_ addr_list;/* an array of address pointers to IPV4 or IPV6 */}; Call thi

Python Network Programming Learning Note (iii)--socket name and DNS

Code listing 4-1 Creating and connecting Sockets using Getaddrinfo ()Importargparse, socket, sysdefconnect_to (hostname_or_ip):Try: Infolist= Socket.getaddrinfo (Hostname_or_ip,'www', 0, socket. Sock_stream, 0, socket. Ai_addrconfig | Socket. ai_v4mapped |socket. Ai_canonname)#getaddrinfo () requests a possible way to connect to the HTTP service provided by HOSTNAME_OR_IP, returning a method that can provid

Micro-credit Payment api.mch.weixin.qq.com domain name resolution slow down what's the problem

Have friends in the Aliyun host implementation of micro-credit payment logic, found that api.mch.weixin.qq.com parsing is too slow.So there has been manual modification of the/etc/hosts, of course, which day micro-letter payment if a change in the room must be hung. Our room also has similar problems, specifically recorded. The code uses the curl to request the micro-letter, often times out, when using the wget test:[Root@01 tmp]# wget api.mch.weixin.qq.com--2016-06-18 14:51:03--http://api.mch

Enterprise Integrated Architecture Design

through consistent replication between underlying application data sources] [Interface-based data integration: different application systems use adapters to provide application programming interfaces for mutual calls (similar to using policy modes to Control Data Access )] Iv. Application Integration (Pragmatic integration) Application Integration refers to the mutual call and interoperability between two or more application systems based on the needs of business logic. [integration of busines

Introduction to mature RosettaNet Solution software

and on-demand integration, which allows for a few minutes of traditional transaction batching to take several days to complete quickly.RosettaNet is just a set of standard agreements, enterprises have the strength to achieve their own. However, due to its complex standard structure, difficult to achieve, self-realization often low return on investment. There are a lot of mature RosettaNet software solutions in the market, but most of them are provided by foreign software vendors. Almost all of

Parsing: Solving SOA integration problems with Saaj

Service-oriented architectures (SOA) and service-oriented integration (SOI) are widely used, and there is a need to become increasingly visible: business needs to integrate systems and allow consumers to access services using standards-based methods. SOA is an architectural paradigm. In this architecture, reusable business logic manifests itself as a set of services that contain standards-based, well-defined interfaces, and can be accessed in a loosely coupled manner. Because of the support of W

Application Software Technology Evolution

application servers to coordinate operations and achieve communication and integration between different services. Functionally, the ESB provides event-driven and document-oriented processing patterns, as well as a distributed operation management mechanism that supports content-based routing and filtering, has the ability to transmit complex data, and can provide a range of standard interfaces. EAI Enterprise Application integration is a method and

The development of BPM industry in China from the perspective of domestic process management software market share

With the support and guidance of the Internet +, China Manufacturing 2025, Industry 4.0 and other national strategies, enterprises in the digital economy era of information performance is amazing, more and more enterprises realize that for the development of enterprises, information automation is far from enough, enterprise strategy, business and it need to maintain a high degree of consistency, At the same time of hard-working it drilling, strengthen the management of internal strength, can gre

Workflow Management System introduction and Current Situation Research

the document management system. These variables are usually declared in the process definition and then instantiated when the process instance is generated. All mature workflow management systems support custom variable types. Target usage) One of the purposes of using the workflow management system is to serve as a platform for Enterprise Application System Integration (EAI. In most of the current enterprise IT architectures, various heterogeneous (

The past and future generations of soa bpel esb: -- Author: Lu Jianwei

Past and future generations of SOA BPEL ESB I am not selling middleware, so I do not have to advocate the concept and principle of SOA.I am not preparing to write an SOA book, so I don't have to chew on it when I write my blog. This article involves SOA, SCA, SDO, workflow, BPEL, ESB, message middleware, WebService, EAI, analysis and design methods, object-oriented, and many components-oriented technologies, you will still confuse SOA = WebService =

NTP school time program

("Time (null) + diftime + delaytime = % LD \ n", time (null) + diftime + delaytime );Printf ("tv1. TV _ sec is % LD \ n", tv1. TV _ Sec );# Endif}Return 1;} Int main (){ Struct addrinfo * res = NULL, hints; Memset ( hints, 0, sizeof (hints ));Hints. ai_family = af_unspec;Hints. ai_socktype = sock_dgram;Hints. ai_protocol = ipproto_udp; /* Call the getaddrinfo () function to obtain the address information */Int rc =

Winsock Network Programming Fundamentals (2) client

Now let's talk about how to create a TCP/IP model-based client and server with Winsock.TCP can provide reliable data transfer between two computers, and when the application uses TCP communication, a virtual connection is established between the two computers, and the computer can be exchanged for two-way byte streams after the connection.The following is a simple client implementation that sends data.Creating a client connection is simple:1. Create a socket, define the Addrinfo object, and init

Python and Domain Name System (DNS) forward query

The Domain Name System (DNS) is a distributed database used to replace the host name with an IP address. There are two reasons for DNS: (1) It makes it easy for users to remember their names, rather than pure IP addresses; (2) allow the server to change the IP address, but use the original domain name. The most basic query in the system is forward query, which searches for IP addresses based on a host name. For example, if you want to download a web page from www.example.com, you must first

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