From 00d58ad187dc9ac57461ec73336b0ee1ec98a5d9 Mon Sep 17 00:00:00 2001
From: RincewindsHat <12514511+RincewindsHat@users.noreply.github.com>
Date: Wed, 18 Oct 2023 20:29:31 +0200
Subject: check_tcp: Use C99 booleans


diff --git a/plugins/check_tcp.c b/plugins/check_tcp.c
index 1d307cf..a1a14b4 100644
--- a/plugins/check_tcp.c
+++ b/plugins/check_tcp.c
@@ -41,7 +41,7 @@ const char *email = "devel@monitoring-plugins.org";
 #include <sys/select.h>
 
 #ifdef HAVE_SSL
-static int check_cert = FALSE;
+static bool check_cert = false;
 static int days_till_exp_warn, days_till_exp_crit;
 # define my_recv(buf, len) ((flags & FLAG_SSL) ? np_net_ssl_read(buf, len) : read(sd, buf, len))
 # define my_send(buf, len) ((flags & FLAG_SSL) ? np_net_ssl_write(buf, len) : send(sd, buf, len, 0))
@@ -65,7 +65,7 @@ static int READ_TIMEOUT = 2;
 
 static int server_port = 0;
 static char *server_address = NULL;
-static int host_specified = FALSE;
+static bool host_specified = false;
 static char *server_send = NULL;
 static char *server_quit = NULL;
 static char **server_expect;
@@ -88,7 +88,7 @@ static int match_flags = NP_MATCH_EXACT;
 
 #ifdef HAVE_SSL
 static char *sni = NULL;
-static int sni_specified = FALSE;
+static bool sni_specified = false;
 #endif
 
 #define FLAG_SSL 0x01
@@ -247,7 +247,7 @@ main (int argc, char **argv)
 #ifdef HAVE_SSL
 	if (flags & FLAG_SSL){
 		result = np_net_ssl_init_with_hostname(sd, (sni_specified ? sni : NULL));
-		if (result == STATE_OK && check_cert == TRUE) {
+		if (result == STATE_OK && check_cert) {
 			result = np_net_ssl_check_cert(days_till_exp_warn, days_till_exp_crit);
 		}
 	}
@@ -378,18 +378,18 @@ main (int argc, char **argv)
 	if(match == NP_MATCH_FAILURE)
 		printf ("|%s",
 				fperfdata ("time", elapsed_time, "s",
-				(flags & FLAG_TIME_WARN ? TRUE : FALSE), 0,
-				(flags & FLAG_TIME_CRIT ? TRUE : FALSE), 0,
-				TRUE, 0,
-				TRUE, socket_timeout)
+				(flags & FLAG_TIME_WARN ? true : false), 0,
+				(flags & FLAG_TIME_CRIT ? true : false), 0,
+				true, 0,
+				true, socket_timeout)
 			);
 	else
 		printf("|%s",
 				fperfdata ("time", elapsed_time, "s",
-				(flags & FLAG_TIME_WARN ? TRUE : FALSE), warning_time,
-				(flags & FLAG_TIME_CRIT ? TRUE : FALSE), critical_time,
-				TRUE, 0,
-				TRUE, socket_timeout)
+				(flags & FLAG_TIME_WARN ? true : false), warning_time,
+				(flags & FLAG_TIME_CRIT ? true : false), critical_time,
+				true, 0,
+				true, socket_timeout)
 			);
 
 	putchar('\n');
@@ -399,11 +399,9 @@ main (int argc, char **argv)
 
 
 /* process command-line arguments */
-static int
-process_arguments (int argc, char **argv)
-{
+static int process_arguments (int argc, char **argv) {
 	int c;
-	int escape = 0;
+	bool escape = false;
 	char *temp;
 
 	enum {
@@ -492,7 +490,7 @@ process_arguments (int argc, char **argv)
 #endif
 			break;
 		case 'H':                 /* hostname */
-			host_specified = TRUE;
+			host_specified = true;
 			server_address = optarg;
 			break;
 		case 'c':                 /* critical */
@@ -527,7 +525,7 @@ process_arguments (int argc, char **argv)
 				server_port = atoi (optarg);
 			break;
 		case 'E':
-			escape = 1;
+			escape = true;
 			break;
 		case 's':
 			if (escape)
@@ -601,7 +599,7 @@ process_arguments (int argc, char **argv)
 				usage2 (_("Invalid certificate expiration period"), optarg);
 			    days_till_exp_warn = atoi (optarg);
 			}
-			check_cert = TRUE;
+			check_cert = true;
 			flags |= FLAG_SSL;
 			break;
 #  endif /* USE_OPENSSL */
@@ -617,7 +615,7 @@ process_arguments (int argc, char **argv)
 		case SNI_OPTION:
 #ifdef HAVE_SSL
 			flags |= FLAG_SSL;
-			sni_specified = TRUE;
+			sni_specified = true;
 			sni = optarg;
 #else
 			die (STATE_UNKNOWN, _("Invalid option - SSL is not available"));
@@ -630,15 +628,15 @@ process_arguments (int argc, char **argv)
 	}
 
 	c = optind;
-	if(host_specified == FALSE && c < argc)
+	if(!host_specified && c < argc)
 		server_address = strdup (argv[c++]);
 
 	if (server_address == NULL)
 		usage4 (_("You must provide a server address"));
-	else if (server_address[0] != '/' && is_host (server_address) == FALSE)
+	else if (server_address[0] != '/' && !is_host(server_address))
 		die (STATE_CRITICAL, "%s %s - %s: %s\n", SERVICE, state_text(STATE_CRITICAL), _("Invalid hostname, address or socket"), server_address);
 
-	return TRUE;
+	return OK;
 }
 
 
-- 
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