Introduction to linux curl and compilation in linux

Libcurl API official documentation http://curl.haxx.se/libcurl/c/

1. Introduction

Curl is a File Transfer tool that uses the URL syntax to work under the command line. It also provides many interfaces that can be used in programming, with powerful functions.

2. Summary

Easy interface, single-Thread Programming Model

Multi interfaces are multi-threaded analog interfaces used in a single-threaded environment to achieve multi-threaded execution.

The share interface supports multi-thread concurrent operations of some protocols. Currently, only DNS and cookies are supported.

3. Specific Interfaces

Curlcode curl_global_init (long flags); // curl_global_nothing uses curl_global_ssl When SSL is not used

Curlcode curl_global_clean (); // initialize

Reference http://blog.csdn.net/dqvega/article/details/6960772

Curl_easy_init (); // generate a session handle

Curl_easy_setopt (); // sets the curl Option

Curl_easy_perform (); // execute the set curl_easy_setopt Option

When the curlopt_connect_only attribute is set, the function only establishes a socket connection.

Implemented by curl_easy_send and curl_easy_recv

Curl_easy_getinfo ();

Http://www.cppblog.com/qiujian5628/archive/2008/06/28/54873.html

Curl options

Http://hi.baidu.com/pavelliu/blog/item/06709625d974166534a80fbd.html

4. in Linux (centos 6.2)

Install curl and libcur

Yum install curl-devel

Compile

Gcc-l curl-O filename. c