metadata
c: Copyright (C) Daniel Stenberg, <[email protected]>, et al.
SPDX-License-Identifier: curl
Title: CURLINFO_LOCAL_PORT
Section: 3
Source: libcurl
Protocol:
- TCP
- QUIC
See-also:
- CURLINFO_LOCAL_IP (3)
- CURLINFO_PRIMARY_PORT (3)
- curl_easy_getinfo (3)
- curl_easy_setopt (3)
Added-in: 7.21.0
NAME
CURLINFO_LOCAL_PORT - get the latest local port number
SYNOPSIS
#include <curl/curl.h>
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.
If the connection was done using QUIC, the port number is a UDP port number, otherwise it is a TCP port number.
%PROTOCOLS%
EXAMPLE
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%
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.