CURLINFO_ACTIVESOCKET - get the active socket
#include <curl/curl.h> CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_ACTIVESOCKET, curl_socket_t *socket);
CURLINFO_ACTIVESOCKET(3) curl_easy_getinfo options CURLINFO_ACTIVESOCKET(3) NAME CURLINFO_ACTIVESOCKET - get the active socket SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_ACTIVESOCKET, curl_socket_t *socket); DESCRIPTION Pass a pointer to a curl_socket_t to receive the most recently active socket used for the transfer connection by this curl session. If the socket is no longer valid, CURL_SOCKET_BAD is returned. When you are finished working with the socket, you must call curl_easy_cleanup(3) as usual on the easy handle and let libcurl close the socket and cleanup other resources associated with the handle. This option returns the active socket only after the transfer is complete, and is typically used in combination with CURLOPT_CONNECT_ONLY(3), which skips the transfer phase. CURLINFO_ACTIVESOCKET(3) was added as a replacement for CURLINFO_LAST- SOCKET(3) since that one is not working on all platforms. PROTOCOLS All EXAMPLE CURL *curl = curl_easy_init(); if(curl) { curl_socket_t sockfd; 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); /* Extract the socket from the curl handle */ res = curl_easy_getinfo(curl, CURLINFO_ACTIVESOCKET, &sockfd); if(res != CURLE_OK) { printf("Error: %s\n", curl_easy_strerror(res)); return 1; } } AVAILABILITY Added in 7.45.0 RETURN VALUE Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+------------------+ |Availability | web/curl | +---------------+------------------+ |Stability | Uncommitted | +---------------+------------------+ SEE ALSO curl_easy_getinfo(3), curl_easy_setopt(3), CURLINFO_LASTSOCKET(3), NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://curl.se/down- load/curl-7.83.1.tar.bz2. Further information about this software can be found on the open source community website at http://curl.haxx.se/. libcurl 7.83.1 November 26, 2021 CURLINFO_ACTIVESOCKET(3)