When 100rel is disabled, don't advertise PRACK as an allowed method

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What steps will reproduce the problem?
1. If 100rel support is disabled (PRACK)
2.
3.

What is the expected output? What do you see instead?

Currently even if 100rel support is not enabled, PRACK is advertised as being 
supported. Here is a proposed patch

Index: include/tinysip/headers/tsip_header_Allow.h
===================================================================
--- include/tinysip/headers/tsip_header_Allow.h (revision previous)
+++ include/tinysip/headers/tsip_header_Allow.h (revision new)
@@ -36,6 +36,7 @@
 TSIP_BEGIN_DECLS

 #define TSIP_HEADER_ALLOW_DEFAULT      "ACK, BYE, CANCEL, INVITE, MESSAGE, NOTIFY, OPTIONS, PRACK, REFER, UPDATE"
+#define TSIP_HEADER_ALLOW_NOPRACK      "ACK, BYE, CANCEL, INVITE, MESSAGE, 
NOTIFY, OPTIONS, REFER, UPDATE"
 #define TSIP_HEADER_STR                            "Allow:"TSIP_HEADER_ALLOW_DEFAULT"\r\n"

 ///////////////////////////////////////////////////////////////////////////////
/////////////////////
Index: src/dialogs/tsip_dialog_invite.c
===================================================================
--- src/dialogs/tsip_dialog_invite.c    (revision previous)
+++ src/dialogs/tsip_dialog_invite.c    (revision new)
@@ -1135,10 +1135,17 @@
                        }

                        /* Add Allow header */
-                       tsip_message_add_headers(response,
+                       if(self->supported._100rel){
+                               tsip_message_add_headers(response,
                                                TSIP_HEADER_DUMMY_VA_ARGS("Allow", TSIP_HEADER_ALLOW_DEFAULT),
                                                tsk_null
                                        );
+                       } else {
+                               tsip_message_add_headers(response,
+                                               
TSIP_HEADER_DUMMY_VA_ARGS("Allow", TSIP_HEADER_ALLOW_NOPRACK),
+                                               tsk_null
+                                       );
+                       }
                }

                ret = tsip_dialog_response_send(TSIP_DIALOG(self), response);
What version of the product are you using? On what operating system?


Please provide any additional information below.

Original issue reported on code.google.com by saket...@gmail.com on 14 Oct 2010 at 12:55