1 files changed, 54 insertions, 22 deletions

diff --git a/plugins/check_smtp.c b/plugins/check_smtp.c
index 8c4f26e..75cd5a8 100644
--- a/plugins/check_smtp.c
+++ b/plugins/check_smtp.c
@@ -40,9 +40,15 @@ void print_usage (void);
 int server_port = SMTP_PORT;
 char *server_address = NULL;
 char *server_expect = NULL;
-int smtp_use_dummycmd = 1;
-char *mail_command;
-char *from_arg;
+int smtp_use_dummycmd = 0;
+char *mail_command = NULL;
+char *from_arg = NULL;
+int ncommands=0;
+int command_size=0;
+int nresponses=0;
+int response_size=0;
+char **commands = NULL;
+char **responses = NULL;
 int warning_time = 0;
 int check_warning_time = FALSE;
 int critical_time = 0;
@@ -58,11 +64,12 @@ int
 main (int argc, char **argv)
 {
         int sd;
+        int n = 0;
         double elapsed_time;
         long microsec;
         int result = STATE_UNKNOWN;
         char buffer[MAX_INPUT_BUFFER];
-        char *from_str = NULL;
+        char *cmd_str = NULL;
         char *helocmd = NULL;
         struct timeval tv;
 
@@ -82,10 +89,10 @@ main (int argc, char **argv)
         asprintf (&helocmd, "%s%s%s", SMTP_HELO, helocmd, "\r\n");
 
         /* initialize the MAIL command with optional FROM command  */
-        asprintf (&from_str, "%sFROM: %s%s", mail_command, from_arg, "\r\n");
+        asprintf (&cmd_str, "%sFROM: %s%s", mail_command, from_arg, "\r\n");
 
-        if (verbose)
-                printf ("FROMCMD: %s\n", from_str);
+        if (verbose && smtp_use_dummycmd)
+                printf ("FROM CMD: %s", cmd_str);
         
         /* initialize alarm signal handling */
         (void) signal (SIGALRM, socket_timeout_alarm_handler);
@@ -99,8 +106,7 @@ main (int argc, char **argv)
         /* try to connect to the host at the given port number */
         result = my_tcp_connect (server_address, server_port, &sd);
 
-        /* we connected, so close connection before exiting */
-        if (result == STATE_OK) {
+        if (result == STATE_OK) { /* we connected */
 
                 /* watch for the SMTP connection string and */
                 /* return a WARNING status if we couldn't read any data */
@@ -109,6 +115,8 @@ main (int argc, char **argv)
                         result = STATE_WARNING;
                 }
                 else {
+                        if (verbose)
+                                printf ("%s", buffer);
                         /* strip the buffer of carriage returns */
                         strip (buffer);
                         /* make sure we find the response we are looking for */
@@ -139,16 +147,25 @@ main (int argc, char **argv)
                  * Use the -f option to provide a FROM address
                  */
                 if (smtp_use_dummycmd) {
-
-                        send(sd, from_str, strlen(from_str), 0);
-
-                        /* allow for response to mail_command to reach us */
+                        send(sd, cmd_str, strlen(cmd_str), 0);
                         recv(sd, buffer, MAX_INPUT_BUFFER-1, 0);
-
                         if (verbose) 
-                                printf(_("DUMMYCMD: %s\n%s\n"),from_str,buffer);
+                                printf("%s", buffer);
+                }
 
-                } /* smtp_use_dummycmd */
+                while (n < ncommands) {
+                        asprintf (&cmd_str, "%s%s", commands[n], "\r\n");
+                        send(sd, cmd_str, strlen(cmd_str), 0);
+                        recv(sd, buffer, MAX_INPUT_BUFFER-1, 0);
+                        if (verbose) 
+                                printf("%s", buffer);
+                        strip (buffer);
+                        if (n < nresponses && strstr(buffer, responses[n])!=buffer) {
+                                result = STATE_WARNING;
+                                printf (_("SMTP %s - Invalid response '%s' to command '%s'\n"), state_text (result), buffer, commands[n]);
+                        }
+                        n++;
+                }
 
                 /* tell the server we're done */
                 send (sd, SMTP_QUIT, strlen (SMTP_QUIT), 0);
@@ -200,6 +217,7 @@ process_arguments (int argc, char **argv)
                 {"port", required_argument, 0, 'p'},
                 {"from", required_argument, 0, 'f'},
                 {"command", required_argument, 0, 'C'},
+                {"response", required_argument, 0, 'R'},
                 {"nocommand", required_argument, 0, 'n'},
                 {"verbose", no_argument, 0, 'v'},
                 {"version", no_argument, 0, 'V'},
@@ -222,7 +240,7 @@ process_arguments (int argc, char **argv)
         }
 
         while (1) {
-                c = getopt_long (argc, argv, "+hVv46t:p:f:e:c:w:H:C:",
+                c = getopt_long (argc, argv, "+hVv46t:p:f:e:c:w:H:C:R:",
                                  longopts, &option);
 
                 if (c == -1 || c == EOF)
@@ -245,16 +263,30 @@ process_arguments (int argc, char **argv)
                         break;
                 case 'f':                                                                       /* from argument */
                         from_arg = optarg;
+                        smtp_use_dummycmd = 1;
                         break;
                 case 'e':                                                                       /* server expect string on 220  */
                         server_expect = optarg;
                         break;
-                case 'C':                                                                       /* server expect string on 220  */
-                        mail_command = optarg;
-                        smtp_use_dummycmd = 1;
+                case 'C':                                                                       /* commands  */
+                        if (ncommands >= command_size) {
+                                commands = realloc (commands, command_size+8);
+                                if (commands == NULL)
+                                        die (STATE_UNKNOWN,
+                                             _("Could not realloc() units [%d]\n"), ncommands);
+                        }
+                        commands[ncommands] = optarg;
+                        ncommands++;
                         break;
-                case 'n':                                                                       /* server expect string on 220  */
-                        smtp_use_dummycmd = 0;
+                case 'R':                                                                       /* server responses */
+                        if (nresponses >= response_size) {
+                                responses = realloc (responses, response_size+8);
+                                if (responses == NULL)
+                                        die (STATE_UNKNOWN,
+                                             _("Could not realloc() units [%d]\n"), nresponses);
+                        }
+                        responses[nresponses] = optarg;
+                        nresponses++;
                         break;
                 case 'c':                                                                       /* critical time threshold */
                         if (is_intnonneg (optarg)) {