59 lines
3.0 KiB
Groff
59 lines
3.0 KiB
Groff
|
.\" **************************************************************************
|
||
|
|
.\" * _ _ ____ _
|
||
|
|
.\" * Project ___| | | | _ \| |
|
||
|
|
.\" * / __| | | | |_) | |
|
||
|
|
.\" * | (__| |_| | _ <| |___
|
||
|
|
.\" * \___|\___/|_| \_\_____|
|
||
|
|
.\" *
|
||
|
|
.\" * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
|
||
|
|
.\" *
|
||
|
|
.\" * This software is licensed as described in the file COPYING, which
|
||
|
|
.\" * you should have received as part of this distribution. The terms
|
||
|
|
.\" * are also available at https://curl.haxx.se/docs/copyright.html.
|
||
|
|
.\" *
|
||
|
|
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
||
|
|
.\" * copies of the Software, and permit persons to whom the Software is
|
||
|
|
.\" * furnished to do so, under the terms of the COPYING file.
|
||
|
|
.\" *
|
||
|
|
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||
|
|
.\" * KIND, either express or implied.
|
||
|
|
.\" *
|
||
|
|
.\" **************************************************************************
|
||
|
|
.TH libcurl 3 "19 Sep 2014" "libcurl" "libcurl easy interface"
|
||
|
|
.SH NAME
|
||
|
|
libcurl-easy \- easy interface overview
|
||
|
|
.SH DESCRIPTION
|
||
|
|
When using libcurl's "easy" interface you init your session and get a handle
|
||
|
|
(often referred to as an "easy handle"), which you use as input to the easy
|
||
|
|
interface functions you use. Use \fIcurl_easy_init(3)\fP to get the handle.
|
||
|
|
|
||
|
|
You continue by setting all the options you want in the upcoming transfer, the
|
||
|
|
most important among them is the URL itself (you can't transfer anything
|
||
|
|
without a specified URL as you may have figured out yourself). You might want
|
||
|
|
to set some callbacks as well that will be called from the library when data
|
||
|
|
is available etc. \fIcurl_easy_setopt(3)\fP is used for all this.
|
||
|
|
|
||
|
|
\fICURLOPT_URL(3)\fP is only option you really must set, as otherwise there
|
||
|
|
can be no transfer. Another commonly used option is \fICURLOPT_VERBOSE(3)\fP
|
||
|
|
that will help you see what libcurl is doing under the hood, very useful when
|
||
|
|
debugging for example. The \fIcurl_easy_setopt(3)\fP man page has a full index
|
||
|
|
of the over 200 available options.
|
||
|
|
|
||
|
|
If you at any point would like to blank all previously set options for a
|
||
|
|
single easy handle, you can call \fIcurl_easy_reset(3)\fP and you can also
|
||
|
|
make a clone of an easy handle (with all its set options) using
|
||
|
|
\fIcurl_easy_duphandle(3)\fP.
|
||
|
|
|
||
|
|
When all is setup, you tell libcurl to perform the transfer using
|
||
|
|
\fIcurl_easy_perform(3)\fP. It will then do the entire operation and won't
|
||
|
|
return until it is done (successfully or not).
|
||
|
|
|
||
|
|
After the transfer has been made, you can set new options and make another
|
||
|
|
transfer, or if you're done, cleanup the session by calling
|
||
|
|
\fIcurl_easy_cleanup(3)\fP. If you want persistent connections, you don't
|
||
|
|
cleanup immediately, but instead run ahead and perform other transfers using
|
||
|
|
the same easy handle.
|
||
|
|
.SH "SEE ALSO"
|
||
|
|
.BR curl_easy_init "(3)," curl_easy_cleanup "(3)," curl_easy_setopt "(3), "
|
||
|
|
.BR libcurl-errors "(3), " libcurl-multi "(3), " libcurl "(3) "
|