--- c: Copyright (C) Daniel Stenberg, , et al. SPDX-License-Identifier: curl Title: CURLINFO_LOCAL_PORT Section: 3 Source: libcurl Protocol: - TCP See-also: - CURLINFO_LOCAL_IP (3) - CURLINFO_PRIMARY_PORT (3) - curl_easy_getinfo (3) - curl_easy_setopt (3) --- # NAME CURLINFO_LOCAL_PORT - get the latest local port number # SYNOPSIS ~~~c #include CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_LOCAL_PORT, long *portp); ~~~ # DESCRIPTION Pass a pointer to a long to receive the local port number of the most recent connection done with this **curl** handle. # EXAMPLE ~~~c int main(void) { CURL *curl; CURLcode res; curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/"); res = curl_easy_perform(curl); if(CURLE_OK == res) { long port; res = curl_easy_getinfo(curl, CURLINFO_LOCAL_PORT, &port); if(CURLE_OK == res) { printf("We used local port: %ld\n", port); } } curl_easy_cleanup(curl); } return 0; } ~~~ # AVAILABILITY Added in 7.21.0 # RETURN VALUE Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.