Added new define in include/client.h
IsRealChannelService() - client has usermode +k and is on a services server (+s flag)

Function ms_invite did not return an error when the source was a channel service,
that should only be for a real channel service.

diff -r 48ace0dc0261 include/client.h
--- a/include/client.h	Wed Mar 17 14:34:56 2010 +0100
+++ b/include/client.h	Wed Mar 17 14:50:51 2010 +0100
@@ -568,6 +568,8 @@
 #define IsBurstOrBurstAck(x)    (HasFlag(x, FLAG_BURST) || HasFlag(x, FLAG_BURST_ACK))
 /** Return non-zero if the client has set mode +k (channel service). */
 #define IsChannelService(x)     HasFlag(x, FLAG_CHSERV)
+/** Return non-zero if the client has set mode +k (channel service) and is on a service server */
+#define IsRealChannelService(x) (IsChannelService(x) && IsService(cli_user(x)->server))
 /** Return non-zero if the client's socket is disconnected. */
 #define IsDead(x)               HasFlag(x, FLAG_DEADSOCKET)
 /** Return non-zero if the client has set mode +d (deaf). */
diff -r 48ace0dc0261 ircd/channel.c
--- a/ircd/channel.c	Wed Mar 17 14:34:56 2010 +0100
+++ b/ircd/channel.c	Wed Mar 17 14:50:51 2010 +0100
@@ -180,7 +180,7 @@
    * however there are typically no more than 1000 people in a channel
    * at a time.
    */
-  if (IsChannelService(cptr)) {
+  if (IsRealChannelService(cptr)) {
     m = chptr->members;
     while (m) {
       assert(m->channel == chptr);
@@ -3176,7 +3176,7 @@
        * Allow +X'ed users to mess with +k'ed.
        * --Bigfoot
        */
-      if ((IsChannelService(state->cli_change[i].client) && IsService(cli_user(state->cli_change[i].client)->server)) || (IsChannelService(state->cli_change[i].client) && !IsXtraOp(state->sptr))) {
+      if ((IsRealChannelService(state->cli_change[i].client)) || (IsChannelService(state->cli_change[i].client) && !IsXtraOp(state->sptr))) {
 	if (state->flags & MODE_PARSE_FORCE) /* it was forced */
 	  sendto_opmask_butone(0, SNO_HACK4, "Deop of +k user on %H by %s",
 			       state->chptr,
@@ -3184,7 +3184,7 @@
 				cli_name((cli_user(state->sptr))->server)));
 
         else if (MyUser(state->sptr) && state->flags & MODE_PARSE_SET && (state->sptr != state->cli_change[i].client)) {
-          if(IsService(cli_user(state->cli_change[i].client)->server) && IsChannelService(state->cli_change[i].client)){
+          if(IsRealChannelService(state->cli_change[i].client)){
             send_reply(state->sptr, ERR_ISREALSERVICE,
                      cli_name(state->cli_change[i].client),
                      state->chptr->chname);
@@ -3641,7 +3641,7 @@
     if (!(flags & (CHFL_ZOMBIE | CHFL_DELAYED)))
       sendcmdto_channel_butserv_butone(jbuf->jb_source, CMD_PART, chan, NULL, 0,
 		    ((flags & CHFL_BANNED) || ((chan->mode.mode & MODE_NOQUITPARTS)
-		     && !IsChannelService(member->user)) || !jbuf->jb_comment) ?
+		     && !IsRealChannelService(member->user)) || !jbuf->jb_comment) ?
 		    "%H" : "%H :%s", chan, jbuf->jb_comment);
     else if (MyUser(jbuf->jb_source))
       sendcmdto_one(jbuf->jb_source, CMD_PART, jbuf->jb_source,
diff -r 48ace0dc0261 ircd/ircd_relay.c
--- a/ircd/ircd_relay.c	Wed Mar 17 14:34:56 2010 +0100
+++ b/ircd/ircd_relay.c	Wed Mar 17 14:50:51 2010 +0100
@@ -205,7 +205,7 @@
    * This first: Almost never a server/service
    * Servers may have channel services, need to check for it here
    */
-  if (client_can_send_to_channel(sptr, chptr, 1) || IsChannelService(sptr)) {
+  if (client_can_send_to_channel(sptr, chptr, 1) || IsRealChannelService(sptr)) {
     sendcmdto_channel_butone(sptr, CMD_PRIVATE, chptr, cli_from(sptr),
 			     SKIP_DEAF | SKIP_BURST, "%H :%s", chptr, text);
   }
@@ -233,7 +233,7 @@
    * This first: Almost never a server/service
    * Servers may have channel services, need to check for it here
    */
-  if (client_can_send_to_channel(sptr, chptr, 1) || IsChannelService(sptr)) {
+  if (client_can_send_to_channel(sptr, chptr, 1) || IsRealChannelService(sptr)) {
     sendcmdto_channel_butone(sptr, CMD_NOTICE, chptr, cli_from(sptr),
 			     SKIP_DEAF | SKIP_BURST, "%H :%s", chptr, text);
   }
@@ -290,7 +290,7 @@
    */
   if (!(acptr = FindUser(name)) || !MyUser(acptr) ||
       (!EmptyString(host) && 0 != match(host, cli_user(acptr)->host)) ||
-      !IsChannelService(acptr))
+      !IsRealChannelService(acptr))
   {
     /*
      * By this stage we might as well not bother because they will
@@ -385,7 +385,7 @@
     send_reply(sptr, ERR_NOSUCHNICK, name);
     return;
   }
-  if ((!IsChannelService(acptr) &&
+  if ((!IsRealChannelService(acptr) &&
        check_target_limit(sptr, acptr, cli_name(acptr), 0)) ||
       is_silenced(sptr, acptr))
     return;
@@ -431,7 +431,7 @@
 
   if (0 == (acptr = FindUser(name)))
     return;
-  if ((!IsChannelService(acptr) && 
+  if ((!IsRealChannelService(acptr) && 
        check_target_limit(sptr, acptr, cli_name(acptr), 0)) ||
       is_silenced(sptr, acptr))
     return;
diff -r 48ace0dc0261 ircd/m_invite.c
--- a/ircd/m_invite.c	Wed Mar 17 14:34:56 2010 +0100
+++ b/ircd/m_invite.c	Wed Mar 17 14:50:51 2010 +0100
@@ -271,7 +271,7 @@
   } else if (IsBurstOrBurstAck(cptr))
     return 0;
 
-  if (!IsChannelService(sptr) && !find_channel_member(sptr, chptr)) {
+  if (!IsRealChannelService(sptr) && !find_channel_member(sptr, chptr)) {
     send_reply(sptr, ERR_NOTONCHANNEL, chptr->chname);
     return 0;
   }
diff -r 48ace0dc0261 ircd/m_kick.c
--- a/ircd/m_kick.c	Wed Mar 17 14:34:56 2010 +0100
+++ b/ircd/m_kick.c	Wed Mar 17 14:50:51 2010 +0100
@@ -136,17 +136,14 @@
    * Allow +X'ed users to kick +k'ed, but not U-lined services.
    * --Bigfoot
    */
-  if (IsChannelService(who)) {
-    if (IsService(cli_user(who)->server))
-      return send_reply(sptr, ERR_ISREALSERVICE, cli_name(who), chptr->chname);
+  if (IsRealChannelService(who))
+    return send_reply(sptr, ERR_ISREALSERVICE, cli_name(who), chptr->chname);
 
-    if (!IsXtraOp(sptr) && (who!=sptr)) {
-      /* the victim is paranoid AND on the channel but not a zombie - wiebe */
-      if (IsParanoid(who) && (member = find_member_link(chptr, who)) && !IsZombie(member)) {
-        sendcmdto_one(&me, CMD_NOTICE, who, "%C :kick: %s tried to /KICK you from %s.", who, cli_name(sptr), chptr->chname);
-      }
-      return send_reply(sptr, ERR_ISCHANSERVICE, cli_name(who), chptr->chname);
-    }
+  if (IsChannelService(who) && !IsXtraOp(sptr) && (who!=sptr)) {
+    /* the victim is paranoid AND on the channel but not a zombie */
+    if (IsParanoid(who) && (member = find_member_link(chptr, who)) && !IsZombie(member))
+      sendcmdto_one(&me, CMD_NOTICE, who, "%C :kick: %s tried to /KICK you from %s.", who, cli_name(sptr), chptr->chname);
+    return send_reply(sptr, ERR_ISCHANSERVICE, cli_name(who), chptr->chname);
   }
 
   /* Prevent kicking opers from local channels -DM- */
diff -r 48ace0dc0261 ircd/m_kill.c
--- a/ircd/m_kill.c	Wed Mar 17 14:34:56 2010 +0100
+++ b/ircd/m_kill.c	Wed Mar 17 14:50:51 2010 +0100
@@ -293,7 +293,7 @@
    * Allow +X'ed users to kill +k'ed, but not U-lined services.
    * --Bigfoot
    */
-  if (IsChannelService(victim) && IsService(cli_user(victim)->server))
+  if (IsRealChannelService(victim))
     return send_reply(sptr, ERR_ISREALSERVICE, "KILL", cli_name(victim));
 
   if (IsChannelService(victim) && !IsXtraOp(sptr) && !(victim==sptr))
diff -r 48ace0dc0261 ircd/m_silence.c
--- a/ircd/m_silence.c	Wed Mar 17 14:34:56 2010 +0100
+++ b/ircd/m_silence.c	Wed Mar 17 14:50:51 2010 +0100
@@ -289,7 +289,7 @@
   /* See if the user is requesting a silence list. */
   acptr = sptr;
   if (parc < 2 || EmptyString(parv[1]) || (acptr = FindUser(parv[1]))) {
-    if (cli_user(acptr) && ((acptr == sptr) || IsChannelService(acptr))) {
+    if (cli_user(acptr) && ((acptr == sptr) || IsRealChannelService(acptr))) {
       for (sile = cli_user(acptr)->silence; sile; sile = sile->next) {
         send_reply(sptr, RPL_SILELIST, cli_name(acptr),
                    (sile->flags & BAN_EXCEPTION ? "~" : ""),  sile->banstr);