upstream/monitoring-plugins
1
0
Fork 0
mirror of https://github.com/monitoring-plugins/monitoring-plugins.git synced 2026-06-09 00:32:05 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions 6

check_curl: use CURLOPT_RESOLVE to fix connecting to the right ip

Browse source 
when using ssl, the composed url contains the hostname instead of the specified
ip. So use CURLOPT_RESOLVE to make curl still connect to the ip.
This commit is contained in:
Sven Nierlein 2020-05-18 13:43:17 +02:00
parent 8a64e47083
commit 84fd9ae893
1 changed files with 11 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
plugins/check_curl.c
View file

@ -366,6 +366,17 @@ check_http (void)
handle_curl_option_return_code (curl_easy_setopt (curl, CURLOPT_CONNECTTIMEOUT, socket_timeout), "CURLOPT_CONNECTTIMEOUT");
handle_curl_option_return_code (curl_easy_setopt (curl, CURLOPT_TIMEOUT, socket_timeout), "CURLOPT_TIMEOUT");
// fill dns resolve cache to make curl connect to the given server_address instead of the host_name, only required for ssl, because we use the host_name later on to make SNI happy
if(use_ssl) {
struct curl_slist *host = NULL;
char dnscache[DEFAULT_BUFFER_SIZE];
snprintf (dnscache, DEFAULT_BUFFER_SIZE, "%s:%d:%s", host_name, server_port, server_address);
host = curl_slist_append(NULL, dnscache);
curl_easy_setopt(curl, CURLOPT_RESOLVE, host);
if (verbose>=1)
printf ("* curl CURLOPT_RESOLVE: %s\n", dnscache);
}
/* compose URL: use the address we want to connect to, set Host: header later */
snprintf (url, DEFAULT_BUFFER_SIZE, "%s://%s:%d%s",
use_ssl ? "https" : "http",