curl_easy_recv.3: CURLINFO_LASTSOCKET => CURLINFO_ACTIVESOCKET

You must ensure that the socket has data to read before calling

\fIcurl_easy_recv(3)\fP, otherwise the call will return \fBCURLE_AGAIN\fP -

the socket is used in non-blocking mode internally. Use

\fIcurl_easy_getinfo(3)\fP with \fBCURLINFO_LASTSOCKET\fP to obtain the

\fIcurl_easy_getinfo(3)\fP with \fBCURLINFO_ACTIVESOCKET(3)\fP to obtain the

socket; use your operating system facilities like \fIselect(2)\fP to check if

it has any data you can read.

.SH AVAILABILITY