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--- nagios-plugins/plugins/check_smtp.c Thu Jun 13 13:49:38 2002
+++ nagios-plugins.patched/plugins/check_smtp.c Fri Jul 19 14:03:19 2002
@@ -50,8 +50,13 @@
*/
#define SMTP_DUMMYCMD "MAIL\r\n"
#define SMTP_USE_DUMMYCMD 1
+#define SMTP_USE_HELOCMD 1
#define SMTP_QUIT "QUIT\r\n"
+#ifdef SMTP_USE_HELOCMD
+#undef SMTP_USE_DUMMYCMD
+#endif /* SMTP_USE_HELOCMD */
+
int process_arguments (int, char **);
int call_getopt (int, char **);
int validate_arguments (void);
@@ -74,6 +79,10 @@
int sd;
int result;
char buffer[MAX_INPUT_BUFFER] = "";
+#ifdef SMTP_USE_HELOCMD
+ char helocmd[255] = "HELO ";
+ char myhostname[248];
+#endif /* SMTP_USE_HELOCMD */
if (process_arguments (argc, argv) != OK)
usage ("Invalid command arguments supplied\n");
@@ -137,13 +146,22 @@
}
}
- /* close the connection */
+#ifdef SMTP_USE_HELOCMD
+ gethostname(myhostname, sizeof(myhostname));
+ strcat(helocmd,myhostname);
+ strcat(helocmd,"\r\n");
+ send(sd,helocmd,strlen(helocmd),0);
+ /* allow for response to helo command to reach us */
+ recv(sd,buffer,MAX_INPUT_BUFFER-1,0);
+#endif /* SMTP_USE_HELOCMD */
+
#ifdef SMTP_USE_DUMMYCMD
send(sd,SMTP_DUMMYCMD,strlen(SMTP_DUMMYCMD),0);
/* allow for response to DUMMYCMD to reach us */
recv(sd,buffer,MAX_INPUT_BUFFER-1,0);
#endif /* SMTP_USE_DUMMYCMD */
+ /* close the connection */
send (sd, SMTP_QUIT, strlen (SMTP_QUIT), 0);
close (sd);
}
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