debian man page for curl_easy_send

curl_easy_send(3)						  libcurl Manual						 curl_easy_send(3)

NAME
       curl_easy_send - sends raw data over an "easy" connection

SYNOPSIS
       #include <curl/easy.h>

       CURLcode curl_easy_send( CURL *curl, const void *buffer,  size_t buflen, size_t *n);

DESCRIPTION
       This function sends arbitrary data over the established connection. You may use it together with curl_easy_recv(3) to implement custom pro-
       tocols using libcurl. This functionality can be particularly useful if you use proxies and/or SSL encryption: libcurl  will  take  care	of
       proxy negotiation and connection set-up.

       buffer is a pointer to the data of length buflen that you want sent.  The variable n points to will receive the number of sent bytes.

       To establish the connection, set CURLOPT_CONNECT_ONLY option before calling curl_easy_perform(3). Note that curl_easy_send(3) will not work
       on connections that were created without this option.

       You must ensure that the socket is writable before calling curl_easy_send(3), otherwise the call will return CURLE_AGAIN -  the	socket	is
       used  in  non-blocking  mode  internally. Use curl_easy_getinfo(3) with CURLINFO_LASTSOCKET to obtain the socket; use your operating system
       facilities like select(2) to check if it can be written to.

AVAILABILITY
       Added in 7.18.2.

RETURN VALUE
       On success, returns CURLE_OK and stores the number of bytes actually sent into *n. Note that this may very well be less than the amount you
       wanted to send.

       On failure, returns the appropriate error code.

EXAMPLE
       See sendrecv.c in docs/examples directory for usage example.

SEE ALSO
       curl_easy_setopt(3), curl_easy_perform(3), curl_easy_getinfo(3), curl_easy_recv(3)

libcurl 7.18.2							   29 April 2008						 curl_easy_send(3)