1--- 2c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 3SPDX-License-Identifier: curl 4Title: CURLINFO_PRIMARY_IP 5Section: 3 6Source: libcurl 7See-also: 8 - CURLINFO_LOCAL_IP (3) 9 - CURLINFO_LOCAL_PORT (3) 10 - CURLINFO_PRIMARY_PORT (3) 11 - curl_easy_getinfo (3) 12 - curl_easy_setopt (3) 13Protocol: 14 - All 15--- 16 17# NAME 18 19CURLINFO_PRIMARY_IP - get IP address of last connection 20 21# SYNOPSIS 22 23~~~c 24#include <curl/curl.h> 25 26CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PRIMARY_IP, char **ip); 27~~~ 28 29# DESCRIPTION 30 31Pass a pointer to a char pointer to receive the pointer to a null-terminated 32string holding the IP address of the most recent connection done with this 33**curl** handle. This string may be IPv6 when that is enabled. Note that you 34get a pointer to a memory area that is reused at next request so you need to 35copy the string if you want to keep the information. 36 37The **ip** pointer is NULL or points to private memory. You MUST NOT free - 38it gets freed when you call curl_easy_cleanup(3) on the corresponding 39CURL handle. 40 41# EXAMPLE 42 43~~~c 44int main(void) 45{ 46 char *ip; 47 CURLcode res; 48 CURL *curl = curl_easy_init(); 49 50 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); 51 52 /* Perform the transfer */ 53 res = curl_easy_perform(curl); 54 /* Check for errors */ 55 if((res == CURLE_OK) && 56 !curl_easy_getinfo(curl, CURLINFO_PRIMARY_IP, &ip) && ip) { 57 printf("IP: %s\n", ip); 58 } 59 60 /* always cleanup */ 61 curl_easy_cleanup(curl); 62} 63~~~ 64 65# AVAILABILITY 66 67Added in 7.19.0 68 69# RETURN VALUE 70 71Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. 72