DOKK / manpages / debian 12 / libcurl4-doc / CURLINFO_LOCAL_PORT.3.en
CURLINFO_LOCAL_PORT(3) curl_easy_getinfo options CURLINFO_LOCAL_PORT(3)

CURLINFO_LOCAL_PORT - get the latest local port number

#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_LOCAL_PORT, long *portp);

Pass a pointer to a long to receive the local port number of the most recent connection done with this curl handle.

All

{

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; }

Added in 7.21.0

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

curl_easy_getinfo(3), curl_easy_setopt(3), CURLINFO_PRIMARY_PORT(3), CURLINFO_LOCAL_IP(3),

January 2, 2023 libcurl 7.88.1