CURLINFO_LOCAL_IP(3) curl_easy_getinfo options 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-ter-
minated 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 will
be re-used at next request so you need to copy the string if you want
to keep the information.
The ip pointer will be NULL or pointing to private memory you MUST NOT
free - it gets freed when you call curl_easy_cleanup(3) on the corre-
sponding CURL handle.
PROTOCOLS
All
EXAMPLE
{
char *ip;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* Perform the request, res will get the return code */
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 7.21.0
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
if not.
SEE ALSO
curl_easy_getinfo(3), curl_easy_setopt(3), CURLINFO_PRIMARY_IP(3),
libcurl 7.81.0 November 26, 2021 CURLINFO_LOCAL_IP(3)
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