**************************************************************************
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* Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
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* This software is licensed as described in the file COPYING, which
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curl_easy_send - sends raw data over an "easy" connection #include <curl/easy.h> "CURLcode curl_easy_send( CURL *" curl ", const void *" buffer "," " size_t " buflen ", size_t *" n ");" This function sends arbitrary data over the established connection. You may use it together with curl_easy_recv(3) to implement custom protocols 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. Added in 7.18.2. 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. See sendrecv.c in docs/examples directory for usage example. curl_easy_setopt "(3), " curl_easy_perform "(3), " curl_easy_getinfo "(3), " curl_easy_recv "(3) "