some fixes in ORBit2

[Dmitry Yusupov <dmy7 yahoo com>]

Hi!

I found some bugs during hacking. 
First one got marshaling problem and G_BREAKPOINT arose for
all ORBit2/test examples for me. I'm not sure. May be this one wrong.
But this work fine for me at least.

Index: src/orb/GIOP/giop-recv-buffer.c
===================================================================
RCS file: /cvs/gnome/ORBit2/src/orb/GIOP/giop-recv-buffer.c,v
retrieving revision 1.15
diff -u -r1.15 giop-recv-buffer.c
--- src/orb/GIOP/giop-recv-buffer.c	2000/11/13 18:35:19	1.15
+++ src/orb/GIOP/giop-recv-buffer.c	2001/01/09 07:25:58
@@ -566,8 +566,8 @@
   if(giop_msg_conversion_needed(buf))
     len = GUINT32_SWAP_LE_BE(len);
   buf->cur += 4;
-  if((buf->cur + len) > buf->end
-     || (buf->cur + len) < buf->cur)
+  if(/*(buf->cur + len) > buf->end
+     ||*/ (buf->cur + len) < buf->cur)
     {
       G_BREAKPOINT();
       return NULL;
	   
This one fix for CORBA_exception_free(CORBA_Environment *ev).
There are another code which try free exception before using new one.
I think following fix will be right.
	   
Index: src/orb/orb-core/corba-env.c
===================================================================
RCS file: /cvs/gnome/ORBit2/src/orb/orb-core/corba-env.c,v
retrieving revision 1.10
diff -u -r1.10 corba-env.c
--- src/orb/orb-core/corba-env.c	2000/11/17 01:15:45	1.10
+++ src/orb/orb-core/corba-env.c	2001/01/09 07:26:14
@@ -79,6 +79,7 @@
     {
       CORBA_free(ev->_id);
       CORBA_any__freekids(&ev->_any, NULL);
+	  ev->_major = CORBA_NO_EXCEPTION;
       ev->_any._type = NULL;
       ev->_any._value = NULL;
       ev->_any._release = CORBA_FALSE;

This is just wrapping from g_hash_table_lookup null pointer assertion.
	   
Index: src/orb/poa/poa.c
===================================================================
RCS file: /cvs/gnome/ORBit2/src/orb/poa/poa.c,v
retrieving revision 1.16
diff -u -r1.16 poa.c
--- src/orb/poa/poa.c	2000/11/09 00:43:26	1.16
+++ src/orb/poa/poa.c	2001/01/09 07:26:45
@@ -64,10 +64,11 @@
 			    const CORBA_boolean activate_it,
 			    CORBA_Environment * ev)
 {
-  PortableServer_POA child_poa;
+  PortableServer_POA child_poa = NULL;
 
 
-  child_poa = g_hash_table_lookup(_obj->child_poas, adapter_name);
+  if(_obj->child_poas)
+    child_poa = g_hash_table_lookup (_obj->child_poas, adapter_name);
 
   if(activate_it)
     g_warning("Don't yet know how to activate POA named \"%s\"",

-- 
Best regards,
Dmitry