You continue by setting all the options you want in the upcoming transfer, the
most important among them is the URL itself (you cannot transfer anything
-without a specified URL as you may have figured out yourself). You might want
-to set some callbacks as well that are called from the library when data is
-available etc. curl_easy_setopt(3) is used for all this.
-
-CURLOPT_URL(3) is the only option you really must set, as otherwise
-there can be no transfer. Another commonly used option is
-CURLOPT_VERBOSE(3) that helps you see what libcurl is doing under the
-hood, which is useful when debugging for example. The
-curl_easy_setopt(3) man page has a full index of the almost 300
+without a specified URL). You might want to set some callbacks as well that
+are called from the library when data is available etc. For example
+CURLOPT_WRITEFUNCTION(3). curl_easy_setopt(3) is used for all this.
+
+CURLOPT_URL(3) is the only option you really must set, as otherwise there can
+be no transfer. Another commonly used option is CURLOPT_VERBOSE(3) that helps
+you see what libcurl is doing under the hood, which is useful when debugging
+for example. The curl_easy_setopt(3) man page has a full index of the over 300
available options.
If you at any point would like to blank all previously set options for a
-single easy handle, you can call curl_easy_reset(3) and you can also
-make a clone of an easy handle (with all its set options) using
+single easy handle, you can call curl_easy_reset(3) and you can also make a
+clone of an easy handle (with all its set options) using
curl_easy_duphandle(3).
When all is setup, you tell libcurl to perform the transfer using
-curl_easy_perform(3). It performs the entire transfer operation and does
-not return until it is done (successfully or not).
+curl_easy_perform(3). It performs the entire transfer operation and does not
+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 are done, cleanup the session by calling
-curl_easy_cleanup(3). If you want persistent connections, you do not
-cleanup immediately, but instead run ahead and perform other transfers using
-the same easy handle.
+curl_easy_cleanup(3). If you want persistent connections, you do not cleanup
+immediately, but instead run ahead and perform other transfers using the same
+easy handle.