Make server-to-server protocol more robust

[ngircd-alex.git] / src / ngircd / irc-login.c

diff --git a/src/ngircd/irc-login.c b/src/ngircd/irc-login.c
index 9fca622ba0ea66422940e2d71dc2dff0d5f2eee4..a7955b14ae3b566b832b4879f445deb2dce21c38 100644 (file)
--- a/src/ngircd/irc-login.c
+++ b/src/ngircd/irc-login.c
@@ -1,6 +1,6 @@
 /*
  * ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2014 Alexander Barton (alex@barton.de) and Contributors.
+ * Copyright (c)2001-2015 Alexander Barton (alex@barton.de) and Contributors.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -196,6 +196,7 @@ IRC_NICK( CLIENT *Client, REQUEST *Req )
 
                /* Search "target" client */
                if (Client_Type(Client) == CLIENT_SERVER) {
+                       _IRC_REQUIRE_PREFIX_OR_RETURN_(Client, Req)
                        target = Client_Search(Req->prefix);
                        if (!target)
                                return IRC_WriteErrClient(Client,
@@ -379,6 +380,8 @@ IRC_SVSNICK(CLIENT *Client, REQUEST *Req)
        assert(Client != NULL);
        assert(Req != NULL);
 
+       _IRC_REQUIRE_PREFIX_OR_RETURN_(Client, Req)
+
        /* Search the originator */
        from = Client_Search(Req->prefix);
        if (!from)
@@ -481,6 +484,7 @@ IRC_USER(CLIENT * Client, REQUEST * Req)
                   Client_Type(Client) == CLIENT_SERVICE) {
                /* Server/service updating an user */
                _IRC_ARGC_EQ_OR_RETURN_(Client, Req, 4)
+               _IRC_REQUIRE_PREFIX_OR_RETURN_(Client, Req)
 
                c = Client_Search(Req->prefix);
                if (!c)
@@ -653,6 +657,8 @@ IRC_QUIT( CLIENT *Client, REQUEST *Req )
 
        if (Client_Type(Client) == CLIENT_SERVER) {
                /* Server */
+               _IRC_REQUIRE_PREFIX_OR_RETURN_(Client, Req)
+
                target = Client_Search(Req->prefix);
                if (!target) {
                        Log(LOG_WARNING,
@@ -741,9 +747,10 @@ IRC_PING(CLIENT *Client, REQUEST *Req)
 
                if (target != Client_ThisServer()) {
                        /* Ok, we have to forward the PING */
-                       if (Client_Type(Client) == CLIENT_SERVER)
+                       if (Client_Type(Client) == CLIENT_SERVER) {
+                               _IRC_REQUIRE_PREFIX_OR_RETURN_(Client, Req)
                                from = Client_Search(Req->prefix);
-                       else
+                       } else
                                from = Client;
                        if (!from)
                                return IRC_WriteErrClient(Client,
@@ -815,6 +822,8 @@ IRC_PONG(CLIENT *Client, REQUEST *Req)
 
        /* Forward? */
        if (Req->argc == 2 && Client_Type(Client) == CLIENT_SERVER) {
+               _IRC_REQUIRE_PREFIX_OR_RETURN_(Client, Req)
+
                target = Client_Search(Req->argv[0]);
                if (!target)
                        return IRC_WriteErrClient(Client, ERR_NOSUCHSERVER_MSG,