CURLINFO_LOCAL_IP(3) Library Functions Manual CURLINFO_LOCAL_IP(3)
NAME
CURLINFO_LOCAL_IP - get local IP address of last connection
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_LOCAL_IP, char **ip);
DESCRIPTION
Pass a pointer to a char pointer to receive the pointer to a
null-terminated string holding the IP address of the local end of most
recent connection done with this curl handle. This string may be IPv6
when that is enabled. Note that you get a pointer to a memory area that
is reused at next request so you need to copy the string if you want to
keep the information.
The ip pointer is NULL or points to private memory. You MUST NOT free -
it gets freed when you call curl_easy_cleanup(3) on the corresponding
CURL handle.
PROTOCOLS
This functionality affects all supported protocols
EXAMPLE
int main(void)
{
char *ip;
CURLcode res;
CURL *curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* Perform the transfer */
res = curl_easy_perform(curl);
/* Check for errors */
if((res == CURLE_OK) &&
!curl_easy_getinfo(curl, CURLINFO_LOCAL_IP, &ip) && ip) {
printf("Local IP: %s\n", ip);
}
/* always cleanup */
curl_easy_cleanup(curl);
}
AVAILABILITY
Added in curl 7.21.0
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
if not.
SEE ALSO
CURLINFO_LOCAL_PORT(3), CURLINFO_PRIMARY_IP(3), curl_easy_getinfo(3),
curl_easy_setopt(3)
libcurl 2024-08-05 CURLINFO_LOCAL_IP(3)
curl 8.9.1 - Generated Sun Aug 11 15:36:02 CDT 2024