개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

curl_easy_send(3)

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 proto‐
       cols 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 setup.

       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(3) option before
       calling  curl_easy_perform(3)  or  curl_multi_perform(3).   Note   that
       curl_easy_send(3)  will not work on connections that were created with‐
       out this option.

       The call will return CURLE_AGAIN if it's  not  possible  to  send  data
       right  now  -  the socket is used in non-blocking mode internally. When
       CURLE_AGAIN is returned, use your operating system facilities like  se‐
       lect(2)  to  wait  until  the socket is writable. The socket may be ob‐
       tained using curl_easy_getinfo(3) with CURLINFO_ACTIVESOCKET(3).

       Furthermore if you wait on the socket and it tells you  it's  writable,
       curl_easy_send(3) may return CURLE_AGAIN if the only data that was sent
       was for internal SSL processing, and no other data could be sent.

EXAMPLE
        curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
        /* Do not do the transfer - only connect to host */
        curl_easy_setopt(curl, CURLOPT_CONNECT_ONLY, 1L);
        res = curl_easy_perform(curl);

        if(res == CURLE_OK) {
          /* Extract the socket from the curl handle -
             we will need it for waiting. */
          res = curl_easy_getinfo(curl, CURLINFO_ACTIVESOCKET, &sockfd);

          /* send data */
          res = curl_easy_send(curl, "hello", 5, &sent);
        }

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 be less than the amount you wanted  to
       send.

       On failure, returns the appropriate error code.

       This  function may return CURLE_AGAIN. In this case, use your operating
       system facilities to wait until the socket is writable, and retry.

       If there's no socket available to use from the previous transfer,  this
       function returns CURLE_UNSUPPORTED_PROTOCOL.

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

libcurl 7.86.0                   May 17, 2022                curl_easy_send(3)