CURLINFO_LASTSOCKET(3)

1CURLINFO_LASTSOCKET(3)     curl_easy_getinfo options    CURLINFO_LASTSOCKET(3)
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NAME

6       CURLINFO_LASTSOCKET - get the last socket used
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SYNOPSIS

9       #include <curl/curl.h>
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11       CURLcode   curl_easy_getinfo(CURL  *handle,  CURLINFO_LASTSOCKET,  long
12       *socket);
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DESCRIPTION

15       Deprecated since 7.45.0. Use CURLINFO_ACTIVESOCKET(3) instead.
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17       Pass a pointer to a long to receive the last socket used by  this  curl
18       session.  If  the  socket  is no longer valid, -1 is returned. When you
19       finish working with the socket, you must  call  curl_easy_cleanup()  as
20       usual  and  let  libcurl  close  the socket and cleanup other resources
21       associated with the handle. This is typically used in combination  with
22       CURLOPT_CONNECT_ONLY(3).
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24       NOTE: this API is deprecated since it is not working on win64 where the
25       SOCKET type is 64 bits large while its  'long'  is  32  bits.  Use  the
26       CURLINFO_ACTIVESOCKET(3) instead, if possible.
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PROTOCOLS

29       All
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EXAMPLE

32       CURL *curl = curl_easy_init();
33       if(curl) {
34         long sockfd; /* doesn't work on win64! */
35         curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
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37         /* Do not do the transfer - only connect to host */
38         curl_easy_setopt(curl, CURLOPT_CONNECT_ONLY, 1L);
39         res = curl_easy_perform(curl);
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41         /* Extract the socket from the curl handle */
42         res = curl_easy_getinfo(curl, CURLINFO_LASTSOCKET, &sockfd);
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44         if(res != CURLE_OK) {
45           printf("Error: %s\n", curl_easy_strerror(res));
46           return 1;
47         }
48       }
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AVAILABILITY

51       Added in 7.15.2
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RETURN VALUE

54       Returns  CURLE_OK  if the option is supported, and CURLE_UNKNOWN_OPTION
55       if not.
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