Only enable os_noop on IRCDs that actually have a SendSVSNOOP impl.

data/operserv.example.conf

@@ -503,7 +503,7 @@ command { service = "OperServ"; name = "RANDOMNEWS"; command = "operserv/randomn
  *
  * Used to NOOP a server, which prevents users from opering on that server.
  */
-module { name = "os_noop" }
+#module { name = "os_noop" }
 command { service = "OperServ"; name = "NOOP"; command = "operserv/noop"; permission = "operserv/noop"; }
 
 /*

include/protocol.h

@@ -74,6 +74,9 @@ public:
 	/* Can we force join or part users? */
 	bool CanSVSJoin = false;
 
+	/** Can we force servers to remove opers? */
+	bool CanSVSNOOP = false;
+
 	/* Can we set vhosts on users? */
 	bool CanSetVHost = false;
 

modules/operserv/os_noop.cpp

@@ -82,7 +82,8 @@ public:
 	OSNOOP(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, VENDOR),
 		commandosnoop(this), noop(this, "noop")
 	{
-
+		if (!IRCD || !IRCD->CanSVSNOOP)
+			throw ModuleException("Your IRCd does not support SVSNOOP.");
 	}
 
 	void OnUserModeSet(const MessageSource &, User *u, const Anope::string &mname) override

modules/protocol/bahamut.cpp

@@ -39,6 +39,7 @@ public:
 	{
 		DefaultPseudoclientModes = "+";
 		CanSVSNick = true;
+		CanSVSNOOP = true;
 		CanSNLine = true;
 		CanSQLine = true;
 		CanSQLineChannel = true;

modules/protocol/plexus.cpp

@@ -25,6 +25,7 @@ public:
 		DefaultPseudoclientModes = "+iU";
 		CanSVSNick = true;
 		CanSVSJoin = true;
+		CanSVSNOOP = true;
 		CanSetVHost = true;
 		CanSetVIdent = true;
 		CanSNLine = true;

modules/protocol/unrealircd.cpp

@@ -28,6 +28,7 @@ public:
 		DefaultPseudoclientModes = "+BioqS";
 		CanSVSNick = true;
 		CanSVSJoin = true;
+		CanSVSNOOP = true;
 		CanSetVHost = true;
 		CanSetVIdent = true;
 		CanSNLine = true;