]> andersk Git - libfaim.git/blobdiff - aim_rxhandlers.c
- Fri Feb 9 22:31:22 UTC 2001
[libfaim.git] / aim_rxhandlers.c
index 9fa45d9ee1826e2533b769f0ca46aa1d246f6a67..8e5551429236fe7159b3627ee025983b705e1816 100644 (file)
@@ -7,13 +7,14 @@
  *
  */
 
+#define FAIM_INTERNAL
 #include <faim/aim.h>
 
 /*
  * Bleck functions get called when there's no non-bleck functions
  * around to cleanup the mess...
  */
-int bleck(struct aim_session_t *sess,struct command_rx_struct *workingPtr, ...)
+faim_internal int bleck(struct aim_session_t *sess,struct command_rx_struct *workingPtr, ...)
 {
   u_short family;
   u_short subtype;
@@ -181,73 +182,75 @@ int bleck(struct aim_session_t *sess,struct command_rx_struct *workingPtr, ...)
   return 1;
 }
 
-int aim_conn_addhandler(struct aim_session_t *sess,
+faim_export int aim_conn_addhandler(struct aim_session_t *sess,
                        struct aim_conn_t *conn,
                        u_short family,
                        u_short type,
                        rxcallback_t newhandler,
                        u_short flags)
 {
-  struct aim_rxcblist_t *new,*cur;
+  struct aim_rxcblist_t *newcb;
 
   if (!conn)
     return -1;
 
-#if debug > 0
-  printf("aim_conn_addhandler: adding for %04x/%04x\n", family, type);
-#endif
+  faimdprintf(1, "aim_conn_addhandler: adding for %04x/%04x\n", family, type);
 
-  new = (struct aim_rxcblist_t *)calloc(1, sizeof(struct aim_rxcblist_t));
-  new->family = family;
-  new->type = type;
-  new->flags = flags;
+  if (!(newcb = (struct aim_rxcblist_t *)calloc(1, sizeof(struct aim_rxcblist_t))))
+    return -1;
+  newcb->family = family;
+  newcb->type = type;
+  newcb->flags = flags;
   if (!newhandler)
-    new->handler = &bleck;
+    newcb->handler = &bleck;
   else
-    new->handler = newhandler;
-  new->next = NULL;
+    newcb->handler = newhandler;
+  newcb->next = NULL;
   
-  cur = conn->handlerlist;
-  if (!cur)
-    conn->handlerlist = new;
-  else 
-    {
-      while (cur->next)
-       cur = cur->next;
-      cur->next = new;
-    }
+  if (!conn->handlerlist)
+    conn->handlerlist = newcb;
+  else {
+    struct aim_rxcblist_t *cur;
+
+    cur = conn->handlerlist;
+
+    while (cur->next)
+      cur = cur->next;
+    cur->next = newcb;
+  }
 
   return 0;
 }
 
-int aim_clearhandlers(struct aim_conn_t *conn)
+faim_export int aim_clearhandlers(struct aim_conn_t *conn)
 {
- struct aim_rxcblist_t *cur,*tmp;
+ struct aim_rxcblist_t *cur;
+
  if (!conn)
    return -1;
 
- cur = conn->handlerlist;
- while(cur)
-   {
-     tmp = cur->next;
-     free(cur);
-     cur = tmp;
-   }
+ for (cur = conn->handlerlist; cur; ) {
+   struct aim_rxcblist_t *tmp;
+
+   tmp = cur->next;
+   free(cur);
+   cur = tmp;
+ }
+ conn->handlerlist = NULL;
+
  return 0;
 }
 
-rxcallback_t aim_callhandler(struct aim_conn_t *conn,
-                   u_short family,
-                   u_short type)
+faim_internal rxcallback_t aim_callhandler(struct aim_conn_t *conn,
+                                        u_short family,
+                                        u_short type)
 {
   struct aim_rxcblist_t *cur;
 
   if (!conn)
     return NULL;
 
-#if debug > 0
-  printf("aim_callhandler: calling for %04x/%04x\n", family, type);
-#endif
+  faimdprintf(1, "aim_callhandler: calling for %04x/%04x\n", family, type);
   
   cur = conn->handlerlist;
   while(cur)
@@ -259,20 +262,21 @@ rxcallback_t aim_callhandler(struct aim_conn_t *conn,
 
   if (type==0xffff)
     return NULL;
+
   return aim_callhandler(conn, family, 0xffff);
 }
 
-int aim_callhandler_noparam(struct aim_session_t *sess,
-                           struct aim_conn_t *conn,
-                           u_short family,
-                           u_short type,
-                           struct command_rx_struct *ptr)
+faim_internal int aim_callhandler_noparam(struct aim_session_t *sess,
+                                         struct aim_conn_t *conn,
+                                         u_short family,
+                                         u_short type,
+                                         struct command_rx_struct *ptr)
 {
   rxcallback_t userfunc = NULL;
   userfunc = aim_callhandler(conn, family, type);
   if (userfunc)
     return userfunc(sess, ptr);
-  return 0;
+  return 1; /* XXX */
 }
 
 /*
@@ -298,285 +302,475 @@ int aim_callhandler_noparam(struct aim_session_t *sess,
   TODO: Allow for NULL handlers.
   
  */
-int aim_rxdispatch(struct aim_session_t *sess)
+faim_export int aim_rxdispatch(struct aim_session_t *sess)
 {
   int i = 0;
   struct command_rx_struct *workingPtr = NULL;
   
-  if (sess->queue_incoming == NULL)
-    /* this shouldn't really happen, unless the main loop's select is broke  */
-    printf("parse_generic: incoming packet queue empty.\n");
-  else
-    {
-      workingPtr = sess->queue_incoming;
-      for (i = 0; workingPtr != NULL; i++)
-       {
-         switch(workingPtr->conn->type)
-           {
-           case AIM_CONN_TYPE_AUTH:
-             {
-               u_long head;
-
-               head = aimutil_get32(workingPtr->data);
-               if (head == 0x00000001)
-                 {
-#if debug > 0
-                   printf("got connection ack on auth line\n");
-#endif
-                   workingPtr->handled = 1;
-                 }
-               else
-                 {
-                   u_short family,subtype;
-
-                   family = aimutil_get16(workingPtr->data);
-                   subtype = aimutil_get16(workingPtr->data+2);
-                   
-                   switch (family)
-                     {
-                       /* New login protocol */
-#ifdef SNACLOGIN
-                     case 0x0017:
-                       if (subtype == 0x0001)
-                         workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0x0001, workingPtr);
-                       else if (subtype == 0x0003)
-                         workingPtr->handled = aim_authparse(sess, workingPtr);
-                       else if (subtype == 0x0007)
-                         workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0x0007, workingPtr);
-                       else
-                         workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0xffff, workingPtr);
-                       break;
-#else
-                       /* XXX: this isnt foolproof */
-                     case 0x0001:
-                       if (subtype == 0x0003)
-                         workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_GEN, AIM_CB_GEN_SERVERREADY, workingPtr);
-                       else
-                         workingPtr->handled = aim_authparse(sess, workingPtr);
-                       break;
-                     case 0x0007:
-                       if (subtype == 0x0005)
-                         workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_ADM, AIM_CB_ADM_INFOCHANGE_REPLY, workingPtr);
-                       break;
-                     default:
-                       /* Old login protocol */
-                       /* any user callbacks will be called from here */
-                       workingPtr->handled = aim_authparse(sess, workingPtr);
-#endif
-                     }
-                 }
-             }
-             break;
-           case AIM_CONN_TYPE_BOS:
-             {
-               u_short family;
-               u_short subtype;
-
-               family = aimutil_get16(workingPtr->data);
-               subtype = aimutil_get16(workingPtr->data+2);
-
-               switch (family)
-                 {
-                 case 0x0000: /* not really a family, but it works */
-                   if (subtype == 0x0001)
-                     workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0000, 0x0001, workingPtr);
-                   else
-                     workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr);
-                   break;
-                 case 0x0001: /* Family: General */
-                   switch (subtype)
-                     {
-                     case 0x0001:
-                       workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
-                       break;
-                     case 0x0003:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0003, workingPtr);
-                       break;
-                     case 0x0005:
-                       workingPtr->handled = aim_handleredirect_middle(sess, workingPtr);
-                       break;
-                     case 0x0007:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0007, workingPtr);
-                       break;
-                     case 0x000a:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x000a, workingPtr);
-                       break;
-                     case 0x000f:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x000f, workingPtr);
-                       break;
-                     case 0x0013:
-                       workingPtr->handled = aim_parsemotd_middle(sess, workingPtr);
-                       break;
-                     default:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_GEN, AIM_CB_GEN_DEFAULT, workingPtr);
-                     }
-                   break;
-                 case 0x0002: /* Family: Location */
-                   switch (subtype)
-                     {
-                     case 0x0001:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0002, 0x0001, workingPtr);
-                       break;
-                     case 0x0003:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0002, 0x0003, workingPtr);
-                       break;
-                     case 0x0006:
-                       workingPtr->handled = aim_parse_userinfo_middle(sess, workingPtr);
-                       break;
-                     default:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_LOC, AIM_CB_LOC_DEFAULT, workingPtr);
-                     }
-                   break;
-                 case 0x0003: /* Family: Buddy List */
-                   switch (subtype)
-                     {
-                     case 0x0001:
-                       workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
-                       break;
-                     case 0x0003:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0003, 0x0003, workingPtr);
-                       break;
-                     case 0x000b: /* oncoming buddy */
-                       workingPtr->handled = aim_parse_oncoming_middle(sess, workingPtr);
-                       break;
-                     case 0x000c: /* offgoing buddy */
-                       workingPtr->handled = aim_parse_offgoing_middle(sess, workingPtr);
-                       break;
-                     default:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_BUD, AIM_CB_BUD_DEFAULT, workingPtr);
-                     }
-                   break;
-                 case 0x0004: /* Family: Messeging */
-                   switch (subtype)
-                     {
-                     case 0x0001:
-                       workingPtr->handled = aim_parse_msgerror_middle(sess, workingPtr);
-                       break;
-                     case 0x0005:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0004, 0x0005, workingPtr);
-                       break;
-                     case 0x0007:
-                       workingPtr->handled = aim_parse_incoming_im_middle(sess, workingPtr);
-                       break;
-                     case 0x000a:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0004, 0x000a, workingPtr);
-                       break;
-                     default:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_MSG, AIM_CB_MSG_DEFAULT, workingPtr);
-                     }
-                   break;
-                 case 0x0009:
-                   if (subtype == 0x0001)
-                     workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
-                   else if (subtype == 0x0003)
-                     workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0009, 0x0003, workingPtr);
-                   else
-                     workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_BOS, AIM_CB_BOS_DEFAULT, workingPtr);
-                   break;
-                 case 0x000a:  /* Family: User lookup */
-                   switch (subtype)
-                     {
-                     case 0x0001:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x000a, 0x0001, workingPtr);
-                       break;
-                     case 0x0003:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x000a, 0x0003, workingPtr);
-                       break;
-                     default:
-                       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_LOK, AIM_CB_LOK_DEFAULT, workingPtr);
-                     }
-                   break;
-                 case 0x000b:
-                   if (subtype == 0x0001)
-                     workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
-                   else if (subtype == 0x0002)
-                     workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x000b, 0x0002, workingPtr);
-                   else
-                     workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_STS, AIM_CB_STS_DEFAULT, workingPtr);
-                   break;
-                 default:
-                   workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr);
-                   break;
-                 }
-             }
-             break;
-           case AIM_CONN_TYPE_CHATNAV:
-             {
-               u_short family;
-               u_short subtype;
-               family = aimutil_get16(workingPtr->data);
-               subtype= aimutil_get16(workingPtr->data+2);
-
-               if ((family == 0x0002) && (subtype == 0x0006))
-                 {
-                   workingPtr->handled = 1;
-                   aim_conn_setstatus(workingPtr->conn, AIM_CONN_STATUS_READY);
-                 }
-               else if ((family == 0x000d) && (subtype == 0x0009))
-                 workingPtr->handled = aim_chatnav_parse_info(sess, workingPtr);
-               else
-                 {
-                   workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
-                 }
-             }
-             break;
-           case AIM_CONN_TYPE_CHAT:
-             {
-               u_short family, subtype;
-
-               family = aimutil_get16(workingPtr->data);
-               subtype= aimutil_get16(workingPtr->data+2);
-               
-               if ((family == 0x0000) && (subtype == 0x00001))
-                 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0000, 0x0001, workingPtr);
-               else if (family == 0x0001)
-                 {
-                   if (subtype == 0x0001)
-                     workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0001, workingPtr);
-                   else if (subtype == 0x0003)
-                     workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0003, workingPtr);
-                   else if (subtype == 0x0007)
-                     workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0007, workingPtr);
-                   else
-                     printf("Chat: unknown snac %04x/%04x\n", family, subtype);
-                 }
-               else if (family == 0x000e)
-                 {
-                   if (subtype == 0x0002)
-                     workingPtr->handled = aim_chat_parse_infoupdate(sess, workingPtr);
-                   else if (subtype == 0x0003)
-                     workingPtr->handled = aim_chat_parse_joined(sess, workingPtr);    
-                   else if (subtype == 0x0004)
-                     workingPtr->handled = aim_chat_parse_leave(sess, workingPtr);     
-                   else if (subtype == 0x0006)
-                     workingPtr->handled = aim_chat_parse_incoming(sess, workingPtr);
-                   else        
-                     printf("Chat: unknown snac %04x/%04x\n", family, subtype); 
-                 }
-               else
-                 {
-                   printf("Chat: unknown snac %04x/%04x\n", family, subtype);
-                   workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_CHT, AIM_CB_CHT_DEFAULT, workingPtr);
-                 }
-             }
-             break;
-           default:
-             printf("\nAHHHHH! UNKNOWN CONNECTION TYPE! (0x%02x)\n\n", workingPtr->conn->type);
-             workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr);
+  if (sess->queue_incoming == NULL) {
+    faimdprintf(1, "parse_generic: incoming packet queue empty.\n");
+    return 0;
+  } else {
+    workingPtr = sess->queue_incoming;
+    for (i = 0; workingPtr != NULL; workingPtr = workingPtr->next, i++) {
+      /*
+       * XXX: This is still fairly ugly.
+       */
+      if (workingPtr->handled)
+       continue;
+
+      /*
+       * This is a debugging/sanity check only and probably could/should be removed
+       * for stable code.
+       */
+      if (((workingPtr->hdrtype == AIM_FRAMETYPE_OFT) && 
+          (workingPtr->conn->type != AIM_CONN_TYPE_RENDEZVOUS)) || 
+         ((workingPtr->hdrtype == AIM_FRAMETYPE_OSCAR) && 
+          (workingPtr->conn->type == AIM_CONN_TYPE_RENDEZVOUS))) {
+       printf("faim: rxhandlers: incompatible frame type %d on connection type 0x%04x\n", workingPtr->hdrtype, workingPtr->conn->type);
+       workingPtr->handled = 1;
+       continue;
+      }
+
+      switch(workingPtr->conn->type) {
+      case -1:
+       /*
+        * This can happen if we have a queued command
+        * that was recieved after a connection has 
+        * been terminated.  In which case, the handler
+        * list has been cleared, and there's nothing we
+        * can do for it.  We can only cancel it.
+        */
+       workingPtr->handled = 1;
+       break;
+      case AIM_CONN_TYPE_AUTH: {
+       unsigned long head;
+       
+       head = aimutil_get32(workingPtr->data);
+       if ((head == 0x00000001) && (workingPtr->commandlen == 4)) {
+         faimdprintf(1, "got connection ack on auth line\n");
+         workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr);
+       } else if (workingPtr->hdr.oscar.type == 0x04) {
+         /* Used only by the older login protocol */
+         workingPtr->handled = aim_authparse(sess, workingPtr);
+        } else {
+         unsigned short family,subtype;
+         
+         family = aimutil_get16(workingPtr->data);
+         subtype = aimutil_get16(workingPtr->data+2);
+         
+         switch (family) {
+           /* New login protocol */
+         case 0x0017:
+           if (subtype == 0x0001)
+             workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0x0001, workingPtr);
+           else if (subtype == 0x0003)
+             workingPtr->handled = aim_authparse(sess, workingPtr);
+           else if (subtype == 0x0007)
+             workingPtr->handled = aim_authkeyparse(sess, workingPtr);
+           else
+             workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0xffff, workingPtr);
+           break;
+         case 0x0001:
+           if (subtype == 0x0003)
+             workingPtr->handled = aim_parse_hostonline(sess, workingPtr);
+           else
+             workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0xffff, workingPtr);
+           break;
+         case 0x0007:
+           if (subtype == 0x0005)
+             workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_ADM, AIM_CB_ADM_INFOCHANGE_REPLY, workingPtr);
+           break;
+         case AIM_CB_FAM_SPECIAL:
+           if (subtype == AIM_CB_SPECIAL_DEBUGCONN_CONNECT) {
+             workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
              break;
-           }
-         /* move to next command */
-         workingPtr = workingPtr->next;
+           } else
+             workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0xffff, workingPtr);
+           break;
+         default:
+           break;
+         }
+       }
+       break;
+      }
+      case AIM_CONN_TYPE_BOS: {
+       u_short family;
+       u_short subtype;
+
+       if (workingPtr->hdr.oscar.type == 0x04) {
+         workingPtr->handled = aim_negchan_middle(sess, workingPtr);
+         break;
+       }
+
+       family = aimutil_get16(workingPtr->data);
+       subtype = aimutil_get16(workingPtr->data+2);
+       
+       switch (family) {
+       case 0x0000: /* not really a family, but it works */
+         if (subtype == 0x0001)
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr);
+         else
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr);
+         break;
+       case 0x0001: /* Family: General */
+         switch (subtype) {
+         case 0x0001:
+           workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
+           break;
+         case 0x0003:
+           workingPtr->handled = aim_parse_hostonline(sess, workingPtr);
+           break;
+         case 0x0005:
+           workingPtr->handled = aim_handleredirect_middle(sess, workingPtr);
+           break;
+         case 0x0007:
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0007, workingPtr);
+           break;
+         case 0x000a:
+           workingPtr->handled = aim_parse_ratechange_middle(sess, workingPtr);
+           break;
+         case 0x000f:
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x000f, workingPtr);
+           break;
+         case 0x0010:
+           workingPtr->handled = aim_parse_evilnotify_middle(sess, workingPtr);
+           break;
+         case 0x0013:
+           workingPtr->handled = aim_parsemotd_middle(sess, workingPtr);
+           break;
+         case 0x0018:
+           workingPtr->handled = aim_parse_hostversions(sess, workingPtr);
+           break;
+         default:
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_GEN, AIM_CB_GEN_DEFAULT, workingPtr);
+           break;
+         }
+         break;
+       case 0x0002: /* Family: Location */
+         switch (subtype) {
+         case 0x0001:
+           workingPtr->handled = aim_parse_locateerr(sess, workingPtr);
+           break;
+         case 0x0003:
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0002, 0x0003, workingPtr);
+           break;
+         case 0x0006:
+           workingPtr->handled = aim_parse_userinfo_middle(sess, workingPtr);
+           break;
+         default:
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_LOC, AIM_CB_LOC_DEFAULT, workingPtr);
+           break;
+         }
+         break;
+       case 0x0003: /* Family: Buddy List */
+         switch (subtype) {
+         case 0x0001:
+           workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
+           break;
+         case 0x0003:
+           workingPtr->handled = aim_parse_buddyrights(sess, workingPtr);
+           break;
+         case 0x000b: /* oncoming buddy */
+           workingPtr->handled = aim_parse_oncoming_middle(sess, workingPtr);
+           break;
+         case 0x000c: /* offgoing buddy */
+           workingPtr->handled = aim_parse_offgoing_middle(sess, workingPtr);
+           break;
+         default:
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_BUD, AIM_CB_BUD_DEFAULT, workingPtr);
+         }
+         break;
+       case 0x0004: /* Family: Messaging */
+         switch (subtype) {
+         case 0x0001:
+           workingPtr->handled = aim_parse_msgerror_middle(sess, workingPtr);
+           break;
+         case 0x0005:
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0004, 0x0005, workingPtr);
+           break;
+         case 0x0006:
+           workingPtr->handled = aim_parse_outgoing_im_middle(sess, workingPtr);
+           break;
+         case 0x0007:
+           workingPtr->handled = aim_parse_incoming_im_middle(sess, workingPtr);
+           break;
+         case 0x000a:
+           workingPtr->handled = aim_parse_missedcall(sess, workingPtr);
+           break;
+         case 0x000c:
+           workingPtr->handled = aim_parse_msgack_middle(sess, workingPtr);
+           break;
+         default:
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_MSG, AIM_CB_MSG_DEFAULT, workingPtr);
+         }
+         break;
+       case 0x0009:
+         if (subtype == 0x0001)
+           workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
+         else if (subtype == 0x0003)
+           workingPtr->handled = aim_parse_bosrights(sess, workingPtr);
+         else
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_BOS, AIM_CB_BOS_DEFAULT, workingPtr);
+         break;
+       case 0x000a:  /* Family: User lookup */
+         switch (subtype) {
+         case 0x0001:
+           workingPtr->handled = aim_parse_searcherror(sess, workingPtr);
+           break;
+         case 0x0003:
+           workingPtr->handled = aim_parse_searchreply(sess, workingPtr);
+           break;
+         default:
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_LOK, AIM_CB_LOK_DEFAULT, workingPtr);
+         }
+         break;
+       case 0x000b: {
+         if (subtype == 0x0001)
+           workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
+         else if (subtype == 0x0002)
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x000b, 0x0002, workingPtr);
+         else
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_STS, AIM_CB_STS_DEFAULT, workingPtr);
+         break;
+       }
+       case 0x0013: {
+         printf("lalala: 0x%04x/0x%04x\n", family, subtype);
+         break;
+       }
+       case AIM_CB_FAM_SPECIAL: 
+         workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
+         break;
+       default:
+         workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr);
+         break;
+       } /* switch(family) */
+       break;
+      } /* AIM_CONN_TYPE_BOS */
+      case AIM_CONN_TYPE_CHATNAV: {
+       u_short family;
+       u_short subtype;
+       family = aimutil_get16(workingPtr->data);
+       subtype= aimutil_get16(workingPtr->data+2);
+
+       if ((family == 0x0000) && (subtype == 0x00001)) {
+         workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr);
+       } else if ((family == 0x0001) && (subtype == 0x0003)) {
+         workingPtr->handled = aim_parse_hostonline(sess, workingPtr);
+       } else if ((family == 0x000d) && (subtype == 0x0009)) {
+         workingPtr->handled = aim_chatnav_parse_info(sess, workingPtr);
+       } else {
+         workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
+       }
+       break;
+      }
+      case AIM_CONN_TYPE_CHAT: {
+       u_short family, subtype;
+       
+       family = aimutil_get16(workingPtr->data);
+       subtype= aimutil_get16(workingPtr->data+2);
+       
+       if ((family == 0x0000) && (subtype == 0x00001)) {
+         workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr);
+       } else if (family == 0x0001) {
+         if (subtype == 0x0001)
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0001, workingPtr);
+         else if (subtype == 0x0003)
+           workingPtr->handled = aim_parse_hostonline(sess, workingPtr);
+         else if (subtype == 0x0007)
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0007, workingPtr);
+         else if (subtype == 0x000a)
+           workingPtr->handled = aim_parse_ratechange_middle(sess, workingPtr);
+         else
+           workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
+       } else if (family == 0x000e) {
+         if (subtype == 0x0002)
+           workingPtr->handled = aim_chat_parse_infoupdate(sess, workingPtr);
+         else if (subtype == 0x0003)
+           workingPtr->handled = aim_chat_parse_joined(sess, workingPtr);      
+         else if (subtype == 0x0004)
+           workingPtr->handled = aim_chat_parse_leave(sess, workingPtr);       
+         else if (subtype == 0x0006)
+           workingPtr->handled = aim_chat_parse_incoming(sess, workingPtr);
+         else  
+           printf("Chat: unknown snac %04x/%04x\n", family, subtype); 
+       } else {
+         printf("Chat: unknown snac %04x/%04x\n", family, subtype);
+         workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_CHT, AIM_CB_CHT_DEFAULT, workingPtr);
        }
+       break;
+      }
+      case AIM_CONN_TYPE_RENDEZVOUS: {
+       /* make sure that we only get OFT frames on these connections */
+       if (workingPtr->hdrtype != AIM_FRAMETYPE_OFT) {
+         printf("faim: internal error: non-OFT frames on OFT connection\n");
+         workingPtr->handled = 1; /* get rid of it */
+         break;
+       }
+       
+       /* XXX: implement this */
+       printf("faim: OFT frame!\n");
+       
+       break;
+      }
+      case AIM_CONN_TYPE_RENDEZVOUS_OUT: {
+       /* not possible */
+       break;
+      }
+      default:
+       printf("\ninternal error: unknown connection type (very bad.) (type = %d, fd = %d, commandlen = %02x)\n\n", workingPtr->conn->type, workingPtr->conn->fd, workingPtr->commandlen);
+       workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr);
+       break;
+      }        
     }
+  }
 
-  sess->queue_incoming = aim_purge_rxqueue(sess->queue_incoming);
+  /* 
+   * This doesn't have to be called here.  It could easily be done
+   * by a seperate thread or something. It's an administrative operation,
+   * and can take a while. Though the less you call it the less memory
+   * you'll have :)
+   */
+  aim_purge_rxqueue(sess);
   
   return 0;
 }
 
-int aim_parsemotd_middle(struct aim_session_t *sess,
-                             struct command_rx_struct *command, ...)
+faim_internal int aim_parse_msgack_middle(struct aim_session_t *sess, struct command_rx_struct *command)
+{
+  rxcallback_t userfunc = NULL;
+  char sn[MAXSNLEN];
+  unsigned short type;
+  int i = 10+8; /* skip SNAC and cookie */
+  int ret = 1;
+  unsigned char snlen;
+
+  type = aimutil_get16(command->data+i);
+  i += 2;
+
+  snlen = aimutil_get8(command->data+i);
+  i++;
+
+  memset(sn, 0, sizeof(sn));
+  strncpy(sn, (char *)command->data+i, snlen);
+
+  if ((userfunc = aim_callhandler(command->conn, 0x0004, 0x000c)))
+    ret =  userfunc(sess, command, type, sn);
+
+  return ret;
+}
+
+/*
+ * The Rate Limiting System, An Abridged Guide to Nonsense.
+ *
+ * OSCAR defines several 'rate classes'.  Each class has seperate
+ * rate limiting properties (limit level, alert level, disconnect
+ * level, etc), and a set of SNAC family/type pairs associated with
+ * it.  The rate classes, their limiting properties, and the definitions
+ * of which SNACs are belong to which class, are defined in the
+ * Rate Response packet at login to each host.  
+ *
+ * Logically, all rate offenses within one class count against further
+ * offenses for other SNACs in the same class (ie, sending messages
+ * too fast will limit the number of user info requests you can send,
+ * since those two SNACs are in the same rate class).
+ *
+ * Since the rate classes are defined dynamically at login, the values
+ * below may change. But they seem to be fairly constant.
+ *
+ * Currently, BOS defines five rate classes, with the commonly used
+ * members as follows...
+ *
+ *  Rate class 0x0001:
+ *     - Everything thats not in any of the other classes
+ *
+ *  Rate class 0x0002:
+ *     - Buddy list add/remove
+ *     - Permit list add/remove
+ *     - Deny list add/remove
+ *
+ *  Rate class 0x0003:
+ *     - User information requests
+ *     - Outgoing ICBMs
+ *
+ *  Rate class 0x0004:
+ *     - A few unknowns: 2/9, 2/b, and f/2
+ *
+ *  Rate class 0x0005:
+ *     - Chat room create
+ *     - Outgoing chat ICBMs
+ *
+ * The only other thing of note is that class 5 (chat) has slightly looser
+ * limiting properties than class 3 (normal messages).  But thats just a 
+ * small bit of trivia for you.
+ *
+ * The last thing that needs to be learned about the rate limiting
+ * system is how the actual numbers relate to the passing of time.  This
+ * seems to be a big mystery.
+ * 
+ */
+faim_internal int aim_parse_ratechange_middle(struct aim_session_t *sess, struct command_rx_struct *command)
+{
+  rxcallback_t userfunc = NULL;
+  int ret = 1;
+  int i;
+  int code;
+  unsigned long rateclass, windowsize, clear, alert, limit, disconnect;
+  unsigned long currentavg, maxavg;
+
+  i = 10;
+
+  code = aimutil_get16(command->data+i);
+  i += 2;
+
+  rateclass = aimutil_get16(command->data+i);
+  i += 2;
+
+  windowsize = aimutil_get32(command->data+i);
+  i += 4;
+  clear = aimutil_get32(command->data+i);
+  i += 4;
+  alert = aimutil_get32(command->data+i);
+  i += 4;
+  limit = aimutil_get32(command->data+i);
+  i += 4;
+  disconnect = aimutil_get32(command->data+i);
+  i += 4;
+  currentavg = aimutil_get32(command->data+i);
+  i += 4;
+  maxavg = aimutil_get32(command->data+i);
+  i += 4;
+
+  if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x000a)))
+    ret =  userfunc(sess, command, code, rateclass, windowsize, clear, alert, limit, disconnect, currentavg, maxavg);
+
+  return ret;
+}
+
+faim_internal int aim_parse_evilnotify_middle(struct aim_session_t *sess, struct command_rx_struct *command)
+{
+  rxcallback_t userfunc = NULL;
+  int ret = 1;
+  int i;
+  unsigned short newevil;
+  struct aim_userinfo_s userinfo;
+
+  i = 10;
+  newevil = aimutil_get16(command->data+10);
+  i += 2;
+
+  memset(&userinfo, 0, sizeof(struct aim_userinfo_s));
+  if (command->commandlen-i)
+    i += aim_extractuserinfo(command->data+i, &userinfo);
+
+  if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0010)))
+    ret = userfunc(sess, command, newevil, &userinfo);
+  
+  return ret;
+}
+
+faim_internal int aim_parsemotd_middle(struct aim_session_t *sess,
+                                      struct command_rx_struct *command, ...)
 {
   rxcallback_t userfunc = NULL;
   char *msg;
@@ -585,115 +779,200 @@ int aim_parsemotd_middle(struct aim_session_t *sess,
   u_short id;
 
   /*
-   * Dunno.
+   * Code.
+   *
+   * Valid values:
+   *   1 Mandatory upgrade
+   *   2 Advisory upgrade
+   *   3 System bulletin
+   *   4 Nothing's wrong ("top o the world" -- normal)
+   *
    */
   id = aimutil_get16(command->data+10);
 
   /* 
    * TLVs follow 
    */
-  tlvlist = aim_readtlvchain(command->data+12, command->commandlen-12);
-  
-  msg = aim_gettlv_str(tlvlist, 0x000b, 1);
+  if (!(tlvlist = aim_readtlvchain(command->data+12, command->commandlen-12)))
+    return ret;
+
+  if (!(msg = aim_gettlv_str(tlvlist, 0x000b, 1))) {
+    aim_freetlvchain(&tlvlist);
+    return ret;
+  }
   
   userfunc = aim_callhandler(command->conn, 0x0001, 0x0013);
   if (userfunc)
     ret =  userfunc(sess, command, id, msg);
 
   aim_freetlvchain(&tlvlist);
+  free(msg);
 
-  return ret;
+  return ret;  
+}
+
+faim_internal int aim_parse_hostonline(struct aim_session_t *sess,
+                                      struct command_rx_struct *command, ...)
+{
+  rxcallback_t userfunc = NULL;
+  int ret = 1;
+  unsigned short *families = NULL;
+  int famcount = 0, i;
+
+  famcount = (command->commandlen-10)/2;
+  if (!(families = malloc(command->commandlen-10)))
+    return ret;
+
+  for (i = 0; i < famcount; i++)
+    families[i] = aimutil_get16(command->data+((i*2)+10));
+
+  if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0003)))
+    ret = userfunc(sess, command, famcount, families);
+
+  free(families);
+
+  return ret;  
+}
+
+faim_internal int aim_parse_hostversions(struct aim_session_t *sess,
+                                        struct command_rx_struct *command, ...)
+{
+  rxcallback_t userfunc = NULL;
+  int ret = 1;
+  int vercount;
+
+  vercount = (command->commandlen-10)/4;
   
+  if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0018)))
+    ret = userfunc(sess, command, vercount, command->data+10);
+
+  return ret;  
 }
 
-int aim_handleredirect_middle(struct aim_session_t *sess,
-                             struct command_rx_struct *command, ...)
+faim_internal int aim_handleredirect_middle(struct aim_session_t *sess,
+                                           struct command_rx_struct *command, ...)
 {
-  struct aim_tlv_t *tmptlv = NULL;
-  int serviceid = 0x00;
-  char cookie[AIM_COOKIELEN];
+  int serviceid = 0;
+  unsigned char *cookie = NULL;
   char *ip = NULL;
   rxcallback_t userfunc = NULL;
   struct aim_tlvlist_t *tlvlist;
   int ret = 1;
   
   tlvlist = aim_readtlvchain(command->data+10, command->commandlen-10);
-  
-  tmptlv = aim_gettlv(tlvlist, 0x000d, 1);
-  serviceid = aimutil_get16(tmptlv->value);
-
-  ip = aim_gettlv_str(tlvlist, 0x0005, 1);
-  
-  tmptlv = aim_gettlv(tlvlist, 0x0006, 1);
-  memcpy(cookie, tmptlv->value, AIM_COOKIELEN);
 
-  if (serviceid == AIM_CONN_TYPE_CHAT)
-    {
-      /*
-       * Chat hack.
-       *
-       */
-      userfunc = aim_callhandler(command->conn, 0x0001, 0x0005);
-      if (userfunc)
-       ret =  userfunc(sess, command, serviceid, ip, cookie, sess->pendingjoin);
+  if (aim_gettlv(tlvlist, 0x000d, 1))
+    serviceid = aim_gettlv16(tlvlist, 0x000d, 1);
+  if (aim_gettlv(tlvlist, 0x0005, 1))
+    ip = aim_gettlv_str(tlvlist, 0x0005, 1);
+  if (aim_gettlv(tlvlist, 0x0006, 1))
+    cookie = aim_gettlv_str(tlvlist, 0x0006, 1);
+
+  if ((serviceid == AIM_CONN_TYPE_CHAT) && sess->pendingjoin) {
+
+    /*
+     * Chat hack.
+     *
+     */
+    if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0005)))
+      ret =  userfunc(sess, command, serviceid, ip, cookie, sess->pendingjoin, (int)sess->pendingjoinexchange);
       free(sess->pendingjoin);
       sess->pendingjoin = NULL;
-    }
-  else
-    {
-      userfunc = aim_callhandler(command->conn, 0x0001, 0x0005);
-      if (userfunc)
-       ret =  userfunc(sess, command, serviceid, ip, cookie);
-    }
+      sess->pendingjoinexchange = 0;
+  } else if (!serviceid || !ip || !cookie) { /* yeep! */
+    ret = 1;
+  } else {
+    if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0005)))
+      ret =  userfunc(sess, command, serviceid, ip, cookie);
+  }
+
+  if (ip)
+    free(ip);
+  if (cookie)
+    free(cookie);
+
   aim_freetlvchain(&tlvlist);
 
   return ret;
 }
 
-int aim_parse_unknown(struct aim_session_t *sess,
-                     struct command_rx_struct *command, ...)
+faim_internal int aim_parse_unknown(struct aim_session_t *sess,
+                                         struct command_rx_struct *command, ...)
 {
   u_int i = 0;
 
-  printf("\nRecieved unknown packet:");
+  if (!sess || !command)
+    return 1;
+
+  faimdprintf(1, "\nRecieved unknown packet:");
 
   for (i = 0; i < command->commandlen; i++)
     {
       if ((i % 8) == 0)
-       printf("\n\t");
+       faimdprintf(1, "\n\t");
 
-      printf("0x%2x ", command->data[i]);
+      faimdprintf(1, "0x%2x ", command->data[i]);
     }
   
-  printf("\n\n");
+  faimdprintf(1, "\n\n");
 
   return 1;
 }
 
 
+faim_internal int aim_negchan_middle(struct aim_session_t *sess,
+                                    struct command_rx_struct *command)
+{
+  struct aim_tlvlist_t *tlvlist;
+  char *msg = NULL;
+  unsigned short code = 0;
+  rxcallback_t userfunc = NULL;
+  int ret = 1;
+
+  tlvlist = aim_readtlvchain(command->data, command->commandlen);
+
+  if (aim_gettlv(tlvlist, 0x0009, 1))
+    code = aim_gettlv16(tlvlist, 0x0009, 1);
+
+  if (aim_gettlv(tlvlist, 0x000b, 1))
+    msg = aim_gettlv_str(tlvlist, 0x000b, 1);
+
+  if ((userfunc = aim_callhandler(command->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_CONNERR))) 
+    ret =  userfunc(sess, command, code, msg);
+
+  aim_freetlvchain(&tlvlist);
+
+  if (msg)
+    free(msg);
+
+  return ret;
+}
+
 /*
  * aim_parse_generalerrs()
  *
  * Middle handler for 0x0001 snac of each family.
  *
  */
-int aim_parse_generalerrs(struct aim_session_t *sess,
-                         struct command_rx_struct *command, ...)
+faim_internal int aim_parse_generalerrs(struct aim_session_t *sess,
+                                       struct command_rx_struct *command, ...)
 {
-  u_short family;
-  u_short subtype;
+  unsigned short family;
+  unsigned short subtype;
+  int ret = 1;
+  int error = 0;
+  rxcallback_t userfunc = NULL;
   
   family = aimutil_get16(command->data+0);
   subtype= aimutil_get16(command->data+2);
   
-  switch(family)
-    {
-    default:
-      /* Unknown family */
-      return aim_callhandler_noparam(sess, command->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, command);
-    }
+  if (command->commandlen > 10)
+    error = aimutil_get16(command->data+10);
 
-  return 1;
+  if ((userfunc = aim_callhandler(command->conn, family, subtype))) 
+    ret = userfunc(sess, command, error);
+
+  return ret;
 }
 
 
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