[monitoring-plugins] Do not print on failed network connections

[Lorenz Kästle]

 Module: monitoring-plugins
 Branch: master
 Commit: 44e4e467c678d481dfc74ade1beb47e199ea67dd
 Author: Lorenz Kästle <12514511+rincewinds...@users.noreply.github.com>
   Date: Thu Mar 13 00:43:46 2025 +0100
    URL: 
https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=44e4e467

Do not print on failed network connections

---

 plugins/netutils.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/plugins/netutils.c b/plugins/netutils.c
index ee81912a..5f118a9e 100644
--- a/plugins/netutils.c
+++ b/plugins/netutils.c
@@ -177,7 +177,7 @@ int np_net_connect(const char *host_name, int port, int 
*sd, int proto) {
                result = getaddrinfo(host, port_str, &hints, &res);
 
                if (result != 0) {
-                       printf("%s\n", gai_strerror(result));
+                       // printf("%s\n", gai_strerror(result));
                        return STATE_UNKNOWN;
                }
 
@@ -187,7 +187,7 @@ int np_net_connect(const char *host_name, int port, int 
*sd, int proto) {
                        *sd = socket(r->ai_family, socktype, r->ai_protocol);
 
                        if (*sd < 0) {
-                               printf("%s\n", _("Socket creation failed"));
+                               // printf("%s\n", _("Socket creation failed"));
                                freeaddrinfo(r);
                                return STATE_UNKNOWN;
                        }
@@ -237,10 +237,11 @@ int np_net_connect(const char *host_name, int port, int 
*sd, int proto) {
                case STATE_OK:
                case STATE_WARNING:  /* user wants WARN or OK on refusal, or... 
*/
                case STATE_CRITICAL: /* user did not set econn_refuse_state, or 
wanted critical */
-                       if (is_socket)
-                               printf("connect to file socket %s: %s\n", 
host_name, strerror(errno));
-                       else
-                               printf("connect to address %s and port %d: 
%s\n", host_name, port, strerror(errno));
+                       if (is_socket) {
+                               // printf("connect to file socket %s: %s\n", 
host_name, strerror(errno));
+                       } else {
+                               // printf("connect to address %s and port %d: 
%s\n", host_name, port, strerror(errno));
+                       }
                        return STATE_CRITICAL;
                        break;
                default: /* it's a logic error if we do not end up in 
STATE_(OK|WARNING|CRITICAL) */
@@ -248,10 +249,11 @@ int np_net_connect(const char *host_name, int port, int 
*sd, int proto) {
                        break;
                }
        } else {
-               if (is_socket)
-                       printf("connect to file socket %s: %s\n", host_name, 
strerror(errno));
-               else
-                       printf("connect to address %s and port %d: %s\n", 
host_name, port, strerror(errno));
+               if (is_socket) {
+                       // printf("connect to file socket %s: %s\n", host_name, 
strerror(errno));
+               } else {
+                       // printf("connect to address %s and port %d: %s\n", 
host_name, port, strerror(errno));
+               }
                return STATE_CRITICAL;
        }
 }