http://curl.haxx.se/libcurl/c/example.html
Some of the Examples
simple HTTP
simple.c shows how to get a remote web page in only four libcurl function calls.
simple HTTPS
https.c gets a single HTTPS page, while simplessl.c shows how to get a remote https page and a set of various SSL-controlling options.
get HTTP with headers separate
sepheader.c gets a web page and stores the response-headers in a separate file.
simple FTP
ftpget.c proves that getting a FTP file is just as simple.
FTP upload
ftpupload.c uploads a local file to a remote FTP server. It also renames the file after succcessful transfer.
get a remote file in memory only
getinmemory.c describes how you can use the callback system to fetch documents into a ram buffer with no file writing necessary.
HTTP PUT
httpput.c makes PUTs a local file to a HTTP server.
HTTP form POST
postit2.c shows how to build a RFC1867-style form post and send it to a HTTP server.
persistant transfers
persistant.c shows that just getting files in a sequential manner will make it use persistant connections if the remote server supports it.
multithreaded URL fetches
multithread.c starts a number of threads and retrieves one URL in each thread. This requires a working thread library.
URL fetch with GTK progress bar
curlgtk.c uses GTK and the libcurl progress callback to show a GUI progress bar while downloading.
fopen() URL
fopen.c shows how you could write an fopen()-style emulation layer to easily make your program read URLs instead of local files.
nonblocking multipart formpost
multi-post.c makes a multipart formpost using the multi interface, which makes it a non-blocking operation.
debug callback
debug.c shows how you can use the debug callback to get a full trace of all protocol data being sent/received (and more).
HTML parsing
htmltitle.cc shows how to use libxml to parse HTML retrieved with libcurl.
Using CURLOPT_SSL_CTX_FUNCTION
curlx.c uses CURLOPT_SSL_CTX_FUNCTION to set a custom callback to deal with an OpenSSL SSL_CTX * at SSL handshake time.
Doing SOAP with libcurl
SOAP example by vivtek.com
You'll also find these examples in the distribution archive, in the docs/examples directory.
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