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59 lines
1.8 KiB
Groff
59 lines
1.8 KiB
Groff
.\" generated by cd2nroff 0.1 from CURLINFO_LASTSOCKET.md
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.TH CURLINFO_LASTSOCKET 3 "March 15 2024" libcurl
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.SH NAME
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CURLINFO_LASTSOCKET \- get the last socket used
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_LASTSOCKET, long *socket);
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.fi
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.SH DESCRIPTION
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Deprecated since 7.45.0. Use \fICURLINFO_ACTIVESOCKET(3)\fP instead.
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Pass a pointer to a long to receive the last socket used by this curl
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session. If the socket is no longer valid, \-1 is returned. When you finish
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working with the socket, you must call \fIcurl_easy_cleanup(3)\fP as usual and
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let libcurl close the socket and cleanup other resources associated with the
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handle. This is typically used in combination with
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\fICURLOPT_CONNECT_ONLY(3)\fP.
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NOTE: this API is deprecated since it is not working on win64 where the SOCKET
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type is 64 bits large while its \(aqlong\(aq is 32 bits. Use the
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\fICURLINFO_ACTIVESOCKET(3)\fP instead, if possible.
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.SH PROTOCOLS
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All
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.SH EXAMPLE
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.nf
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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long sockfd; /* does not work on win64! */
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* Do not do the transfer - only connect to host */
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curl_easy_setopt(curl, CURLOPT_CONNECT_ONLY, 1L);
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res = curl_easy_perform(curl);
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/* Extract the socket from the curl handle */
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res = curl_easy_getinfo(curl, CURLINFO_LASTSOCKET, &sockfd);
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if(res != CURLE_OK) {
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printf("Error: %s\\n", curl_easy_strerror(res));
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return 1;
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}
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}
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}
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.fi
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.SH AVAILABILITY
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Added in 7.15.2
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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.SH SEE ALSO
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.BR CURLINFO_ACTIVESOCKET (3),
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.BR CURLOPT_CONNECT_ONLY (3),
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.BR curl_easy_getinfo (3),
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.BR curl_easy_setopt (3)
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