To figure out if an installed libcurl has been built with SSL support enabled, use 'curl-config' like this:Īnd if SSL is supported, the keyword SSL will be written to stdout, possibly together with a few other features that could be either on or off on for different libcurls. If a supported SSL library was detected properly at build-time, libcurl will be built with SSL support. One of the things that varies from different libraries and builds is the support for SSL-based transfers, like HTTPS and FTPS. Libcurl can be built and customized in many ways. To figure out which flags to use, once again the 'curl-config' tool comes to the rescue: Like the OpenSSL libraries, but even some standard OS libraries may be needed on the command line. For that to succeed, you need to link with libcurl and possibly also with other libraries that libcurl itself depends on. When having compiled the program, you need to link your object files to create a single executable. The 'curl-config' tool can be used to get this information: Therefore you must set your compiler's include path to point to the directory where you installed them. Your compiler needs to know where the libcurl headers are located. If you use a different build system, you can still read this to get general information that may apply to your environment as well. This chapter will assume a Unix style build process. There are many different ways to build C programs. To get more details on all options and functions described herein, please refer to their respective man pages. The program is outside libcurl and libcurl is outside of the program.
#C program for stop and wait protocol code#
What will be generally referred to as 'the program' will be the collected source code that you write that is using libcurl for transfers. That would probably be you or someone in your position. This document will refer to 'the user' as the person writing the source code that uses libcurl. The text will focus mainly on the C interface but might apply fairly well on other interfaces as well as they usually follow the C one pretty closely. This document attempts to describe the general principles and some basic approaches to consider when programming with libcurl. Libcurl-tutorial - libcurl programming tutorial Objective
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