After downloading Curl 7.37, there are various versions vs corresponding project files in project, we choose the appropriate open can compile, according to the different project configuration output the desired library, such as can switch a variety of SSL libraries, dll/lib,debug/release and so on.However, these project configurations are not zlib and inconvenient. and the official website of the install document Http://curl.haxx.se/docs/install.html,
A brief introduction to the difference between curl and Libcurl
This article mainly introduces the difference between Curl and libcurl, this article explains Curl Introduction, Libcurl Introduction, curl and libcurl contrast, "curl" different meanings, PHP use curl and libcurl
-5.16.0.1600-MSWin32-x86-295879.msiX64:http://downloads.activestate.com/activeperl/releases/5.16.0.1600/activeperl-5.16.0.1600-mswin32-x64-295879.msi2 Extracting and installing files2.1 ActivePerl installation, double click directly next, the default setting to the end.2.2 zlib OpenSSL Libcurl are decompressed separately, with three of them in the same level directory.For example: D:\User\Dewei\TestCurl\curl-7.26.0, D:\User\Dewei\TestCurl\openssl-1.0.
In the latest version of Cocos2d-x 3.x, the header and library files needed to migrate the Windows Phone 8 Platform Libcurl Library are available. But it's not easy to successfully port the Libcurl library on the Windows Phone 8 platform, and it takes a bit of effort, and I've summed up the following steps:Configure header File Search pathConfiguring the linked environmentAdd a dynamic link library1. Config
Curl Introduction
Curl is an open source file Transfer tool that uses URL syntax to work on a command-line basis.It supports many protocols: DICT, FILE, FTP, FTPS, Gopher, HTTP, HTTPS, IMAP, Imaps, LDAP, LDAPS, POP3, Pop3s, RTMP, RTSP, SCP, SFTP, SMTP, SM TPS, Telnet and TFTP.Curl also supports SSL certificates, HTTP POST, http put,ftp upload, HTTP upload based on form, proxy (proxies), cookies, username/password Authentication (Basic, Digest, NTLM, etc.), download file breakpoints, Upload file
Today, there is a very strange problem: the project used Libcurl, debug can run normally, release every time crashes, broken to curl_easy_perform this line. No useful information is available on the stack, so Google has found that someone has encountered this problem, but has not found an effective solution. It's a bit of a rip-off ...Also found a strange problem, with the IDE running release version of the program, can run normally, out of the IDE do
CurlcodeAlmost all ' easy ' interface functions return a curlcode error code. No matter what, using the curl_easy_setopt option Curlopt_errorbuffer was a good idea as it would give you a human readable Error string that could offer more details about the cause of the error than just the error code. Curl_easy_strerror can is called to get the error string from a given curlcode number.Almost all easy interface functions return an error code of type Curlcode.In any case, use curl_easy_setopt (handl
Preface
Previously shared a Windows on the packaging WinHTTP and WinInet API code, the results of the download page very much praise (hehe), thank you for your welcome. Article Address: Open source A C + + implementation of a simple HTTP protocol processing library, which has code resources to download the address. However, in the actual development process I found that the WinHTTP API is heavily dependent on Microsoft's IE components, the download process will appear some rare anomalies. (for
1. Libcurl and Close_wait
Reproduced from: http://blog.sunshow.net/2010/03/libcurl-and-close-wait/
Call Libcurl download, and then use Netstat to see that a large number of TCP connections remain in the close_wait stateView the documentation description for Libcurl, with an option:
Curlopt_forbid_reuse
Pass a long. S
in the latest version of Cocos2d-x 3.x, the header and library files needed to migrate the Windows Phone 8 Platform Libcurl Library are available. But it's not easy to successfully port the Libcurl library on the Windows Phone 8 platform, and it takes a bit of effort, and I've summed up the following steps:Configure header File Search pathConfiguring the linked environmentAdd a dynamic link library1. Config
= Static,nmake will create and link to the static buildLibcurl but not * static CRT. If you must force NMAKE to link inStatic CRT by passing rtlibcfg = static. Usually you should not use itoption, and NMAKE defaults to the DLL CRT. Rtlibcfg rarely usedSo very little testingThe above is some of the parameters required for compilingEnter the following code at the command line to return tonmake/f makefile.vc mode=static vc=14 with_ssl=static with_devel=
Libcurl Open Source Library in VS2010 environment to compile and install, configuration detailedTransferred from: http://my.oschina.net/u/1420791/blog/198247Curl Open Source Library VS2010 environment compiled installation, configuration detailedA preparation1.1 Curl Official Website: http://curl.haxx.se/download.html1.2 Find the source package, I download here is 7.32.0 version: Http://curl.haxx.se/download/curl-7.32.0.zipTwo steps2.1Open curl-7.32.0
The objective of this learning note is to use libcurl to upload and download FTP files.
1. Introduction to libcurlde
Libcurl is a free and easy-to-use library that uses URLs for file transfer ., Libcurl currently supports dict, file, FTP, ftps, Gopher, HTTP, https, IMAP, IMAPs, LDAP, LDAPS, POP3, pop3s, rtmp, RTSP, SCP, SFTP, SMTP, smtps, telnet and TFTP protocol
Cross-compiling libcurl,openssl,zlib with MinGWExtract three libraries into the same directory, such as the directory named "source" pre-installation Active-perl configuration MinGW and Msys environment otherwise compile error-source+ curl-xxx+ openssl-1.0.xx+ zlib-xxx1 first step (performed in Msys environment)compile OpenSSL to enter four instructions sequentially./config-t./config Threads Shared No-capiengMake depend Make will generate LIBCRYPTO.A
1, the problem source, multi-threaded use Libcurl cause the program to run a period of time after their own exit, no obvious exception. The appropriate bug could not be found.
Finally, by looking at the material and some articles on the Internet, we find that the problem of signal processing is:
curlopt_nosignal
Pass a long. If It is 1, Libcurl would not use any functions this install signal handlers or
Build libcurl and oslibcurl in Mac OS X
Reprinted please indicate the source
In the source code compilation of libcurl, the compilation always fails according to the official documentation and google search. Simply find out the cause step by step based on the prompted failure and make it clear, OS x lacks several gnu tools and requires config initialization. libcurl
The goal of this learning note is to use Libcurl to implement FTP file upload and download functions.A brief introduction of LibcurldeLibcurl is a free and easy-to-use library that uses URLs for file transfers., Libcurl currently supports Dict, FILE, FTP, FTPS, Gopher, HTTP, HTTPS, IMAP, IMAPS, Ldap,ldaps, POP3, Pop3s, RTMP, RTSP, SCP, SFTP, SMTP , SMTPS, Telnet and TFTP protocol.
Some time ago, when I used libcurl To Write multi-thread downloads, I encountered an inexplicable segment error.
The problem occurs when you use libcurl to open multiple threads to download files from the task queue. Because the download queue is empty, all download threads are locked in pthread_mutex_lock. At this time,
Program After idle for a few seconds, the system will exit due to segmentation fault.
Libcurl a lot of parameters, accidentally easy to encounter problems. Once encountered a very egg pain problem: Libcurl Breakpoint Download >> Here the main summary, Libcurl upload two ways: 1, directly upload the file, similar form form 2, upload binary stream; As for setting a custom header, use the same method structCurl_slist *headers=null;headers = curl_s
From http://www.cnblogs.com/kex1n/p/4135263.html(1), timeout (timeout)Libcurl is a very good library, supporting HTTP,FTP and many other protocols. The biggest thing about using a library is that it's dangerous to just look at the document and write a program without looking at it. My program crashes, I suspect it is my own code to write the problem, and later found that the library is useless. Do not look closely at the document (sometimes the docume
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