.\" generated by cd2nroff 0.1 from CURLINFO_LOCAL_PORT.md
.TH CURLINFO_LOCAL_PORT 3 "2026-09-02" libcurl
.SH NAME
CURLINFO_LOCAL_PORT \- latest local port number
.SH SYNOPSIS
.nf
#include <curl/curl.h>

CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_LOCAL_PORT, long *portp);
.fi
.SH DESCRIPTION
Pass a pointer to a long to receive the local port number of the most recent
connection done with this \fBcurl\fP handle.

If the connection was done using QUIC, the port number is a UDP port number,
otherwise it is a TCP port number.

If no connection was established or if the protocol does not use ports, \-1
is returned.
.SH PROTOCOLS
This functionality affects quic and tcp
.SH EXAMPLE
.nf
int main(void)
{
  CURL *curl;
  CURLcode result;

  curl = curl_easy_init();
  if(curl) {
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
    result = curl_easy_perform(curl);

    if(result == CURLE_OK) {
      long port;
      result = curl_easy_getinfo(curl, CURLINFO_LOCAL_PORT, &port);

      if(result == CURLE_OK) {
        printf("We used local port: %ld\\n", port);
      }
    }
    curl_easy_cleanup(curl);
  }
  return 0;
}
.fi
.SH AVAILABILITY
Added in curl 7.21.0
.SH RETURN VALUE
\fIcurl_easy_getinfo(3)\fP returns a CURLcode indicating success or error.

CURLE_OK (0) means everything was OK, non\-zero means an error occurred, see
\fIlibcurl\-errors(3)\fP.
.SH SEE ALSO
.BR CURLINFO_LOCAL_IP (3),
.BR CURLINFO_PRIMARY_PORT (3),
.BR curl_easy_getinfo (3),
.BR curl_easy_setopt (3)