1 files changed, 29 insertions, 33 deletions

diff --git a/plugins/check_tcp.c b/plugins/check_tcp.c
index af31885..c13ac76 100644
--- a/plugins/check_tcp.c
+++ b/plugins/check_tcp.c
@@ -51,8 +51,8 @@ static int days_till_exp_warn, days_till_exp_crit;
 #endif
 
 /* int my_recv(char *, size_t); */
-static int process_arguments(int, char **);
-void print_help(void);
+static int process_arguments(int /*argc*/, char ** /*argv*/);
+static void print_help(void);
 void print_usage(void);
 
 #define EXPECT server_expect[0]
@@ -99,15 +99,6 @@ static bool sni_specified = false;
 static size_t flags;
 
 int main(int argc, char **argv) {
-        int result = STATE_UNKNOWN;
-        char *status = NULL;
-        struct timeval tv;
-        struct timeval timeout;
-        int match = -1;
-        fd_set rfds;
-
-        FD_ZERO(&rfds);
-
         setlocale(LC_ALL, "");
         bindtextdomain(PACKAGE, LOCALEDIR);
         textdomain(PACKAGE);
@@ -202,7 +193,7 @@ int main(int argc, char **argv) {
         server_port = PORT;
         server_send = SEND;
         server_quit = QUIT;
-        status = NULL;
+        char *status = NULL;
 
         /* Parse extra opts if any */
         argv = np_extra_opts(&argc, argv, progname);
@@ -228,8 +219,10 @@ int main(int argc, char **argv) {
         alarm(socket_timeout);
 
         /* try to connect to the host at the given port number */
+        struct timeval tv;
         gettimeofday(&tv, NULL);
 
+        int result = STATE_UNKNOWN;
         result = np_net_connect(server_address, server_port, &sd, PROTOCOL);
         if (result == STATE_CRITICAL)
                 return econn_refuse_state;
@@ -273,6 +266,10 @@ int main(int argc, char **argv) {
         /* if(len) later on, we know we have a non-NULL response */
         ssize_t len = 0;
 
+        int match = -1;
+        struct timeval timeout;
+        fd_set rfds;
+        FD_ZERO(&rfds);
         if (server_expect_count) {
                 ssize_t received = 0;
 
@@ -377,15 +374,10 @@ int main(int argc, char **argv) {
 
 /* process command-line arguments */
 static int process_arguments(int argc, char **argv) {
-        int c;
-        bool escape = false;
-        char *temp;
-
         enum {
                 SNI_OPTION = CHAR_MAX + 1
         };
 
-        int option = 0;
         static struct option longopts[] = {{"hostname", required_argument, 0, 'H'},
                                                                            {"critical", required_argument, 0, 'c'},
                                                                            {"warning", required_argument, 0, 'w'},
@@ -418,13 +410,13 @@ static int process_arguments(int argc, char **argv) {
                 usage4(_("No arguments found"));
 
         /* backwards compatibility */
-        for (c = 1; c < argc; c++) {
-                if (strcmp("-to", argv[c]) == 0)
-                        strcpy(argv[c], "-t");
-                else if (strcmp("-wt", argv[c]) == 0)
-                        strcpy(argv[c], "-w");
-                else if (strcmp("-ct", argv[c]) == 0)
-                        strcpy(argv[c], "-c");
+        for (int i = 1; i < argc; i++) {
+                if (strcmp("-to", argv[i]) == 0)
+                        strcpy(argv[i], "-t");
+                else if (strcmp("-wt", argv[i]) == 0)
+                        strcpy(argv[i], "-w");
+                else if (strcmp("-ct", argv[i]) == 0)
+                        strcpy(argv[i], "-c");
         }
 
         if (!is_option(argv[1])) {
@@ -434,13 +426,16 @@ static int process_arguments(int argc, char **argv) {
                 argc--;
         }
 
-        while (1) {
-                c = getopt_long(argc, argv, "+hVv46EAH:s:e:q:m:c:w:t:p:C:W:d:Sr:jD:M:", longopts, &option);
+        int option_char;
+        bool escape = false;
+        while (true) {
+                int option = 0;
+                option_char = getopt_long(argc, argv, "+hVv46EAH:s:e:q:m:c:w:t:p:C:W:d:Sr:jD:M:", longopts, &option);
 
-                if (c == -1 || c == EOF || c == 1)
+                if (option_char == -1 || option_char == EOF || option_char == 1)
                         break;
 
-                switch (c) {
+                switch (option_char) {
                 case '?': /* print short usage statement if args not parsable */
                         usage5();
                 case 'h': /* help */
@@ -553,9 +548,10 @@ static int process_arguments(int argc, char **argv) {
                         else
                                 usage4(_("Delay must be a positive integer"));
                         break;
-                case 'D': /* Check SSL cert validity - days 'til certificate expiration */
+                case 'D': { /* Check SSL cert validity - days 'til certificate expiration */
 #ifdef HAVE_SSL
 #       ifdef USE_OPENSSL /* XXX */
+                        char *temp;
                         if ((temp = strchr(optarg, ',')) != NULL) {
                                 *temp = '\0';
                                 if (!is_intnonneg(optarg))
@@ -574,7 +570,7 @@ static int process_arguments(int argc, char **argv) {
                         }
                         check_cert = true;
                         flags |= FLAG_SSL;
-                        break;
+                } break;
 #       endif /* USE_OPENSSL */
 #endif
                         /* fallthrough if we don't have ssl */
@@ -600,9 +596,9 @@ static int process_arguments(int argc, char **argv) {
                 }
         }
 
-        c = optind;
-        if (!host_specified && c < argc)
-                server_address = strdup(argv[c++]);
+        option_char = optind;
+        if (!host_specified && option_char < argc)
+                server_address = strdup(argv[option_char++]);
 
         if (server_address == NULL)
                 usage4(_("You must provide a server address"));