From: Jean-Marc Pigeon (Delson) <jmp@safe.ca>
Date: Tue, 12 Aug 2025 12:34:52 +0000 (-0400)
Subject: Adding help command
X-Git-Tag: tag-0.15~18
X-Git-Url: https://jmp-git.ovh.safe.ca/?a=commitdiff_plain;h=899fbe0c4dcb6ef58406dde0cff9535c9725794f;p=jmp%2Fmailleur

Adding help command
---

diff --git a/data-feed/feed21.tst b/data-feed/feed21.tst
index 080eb8f..05d2ab1 100644
--- a/data-feed/feed21.tst
+++ b/data-feed/feed21.tst
@@ -3,11 +3,4 @@
 T:(feed20) Testing double connectopm
 R:220 mailleur.example.com, ESMTP (cleartext) mailleur...
 #====================================================
-S:HELO example.com
-R:250 mailleur.example.com, link (cleartext) ready,...
-C:ORGN: 185.242.226.23
-R:220 mailleur.example.com, ESMTP (cleartext) mailleur...
-C:WAIT 5	#wait 5 sec
-S:QUIT
-R:221 2.0.0 Bye, closing connection...
 #-------------------------------------------------------------------------
diff --git a/lib/lvleml.c b/lib/lvleml.c
index 8ebab75..a106251 100644
--- a/lib/lvleml.c
+++ b/lib/lvleml.c
@@ -2464,6 +2464,12 @@ while (proceed==true) {
     case c_ehlo         :       //EHLO SMTP protocol
       proceed=doehlo(contact,line);
       break;
+    case c_help         :       //HELP SMTP protocol
+      (void) eml_transmit(contact,true,"%d-2.0.1 see https://datatracker.ietf.org"
+                                        "/doc/html/rfc5321",
+                                        GOTHELP);
+      (void) sleep(1);          //avoiding abuse
+      break;
     case c_noop         :       //No Operation
       (void) eml_transmit(contact,true,"%d 2.0.0 OK, %s",    
                                        CMDOK,contact->mainsesid);
diff --git a/lib/unieml.c b/lib/unieml.c
index f505c92..2199fcb 100644
--- a/lib/unieml.c
+++ b/lib/unieml.c
@@ -35,6 +35,7 @@ static VOCTYP vocsmtp[]={
                 {c_data,"DATA"},
                 {c_ehlo,"EHLO"},
                 {c_helo,"HELO"},
+                {c_help,"HELP"},
                 {c_mail,"MAIL FROM:"},
                 {c_noop,"NOOP"},
 #if   MODEDEBUG
diff --git a/lib/unieml.h b/lib/unieml.h
index 90604d2..2733766 100644
--- a/lib/unieml.h
+++ b/lib/unieml.h
@@ -17,6 +17,7 @@
 
 #define MXMSIZE "52428800"      //52 Megabytes
 #define CRLF    "\r\n"          //EOL within SMTP protocol
+#define	GOTHELP	214	        //Help message (A response to the HELP command)
 #define	SIGNON	220	        //signon information
 #define	QUITOK	221	        //status on quit
 #define IDOK    235             //Authentication ID OK
@@ -72,6 +73,7 @@ typedef enum    {               //list of SMTP protocol keyword
         c_data,                 //DATA email contents transfer request
         c_ehlo,                 //EHLO command
         c_helo,                 //Basic Helo command
+        c_help,                 //HELP command
         c_mail,                 //'mail from:' sequence detected
         c_noop,                 //No Operation request
 #ifdef  MODEDEBUG