sip_add_branchid_to_via(3SIP)			   Session Initiation Protocol Library Functions		     sip_add_branchid_to_via(3SIP)

NAME

       sip_add_branchid_to_via - add a branch parameter to the topmost VIA header in the SIP message

SYNOPSIS

       cc [ flag ... ] file ... -lsip [ library ... ]
       #include <sip.h>

       int sip_add_branchid_to_via(sip_msg_t sip_msg, char *branchid);

DESCRIPTION

       The  sip_add_branchid_to_via() function adds a branch param to the topmost VIA header in the SIP message sip_msg. Note that a new header is
       created as a result of adding the branch parameter and the old header is marked deleted. Applications with multiple threads working on  the
       same VIA header need to take note of this.

RETURN VALUES

       These functions return 0 on success and the appropriate error value on failure.

ERRORS

       On failure, functions that return an error value may return one of the following:

       EINVAL	 Mandatory parameters are not provided or are NULL.

		 For sip_add_branchid_to_via(), the topmost VIA header already has a branch param or the SIP message does not have a VIA header.

       EPERM	 The message cannot be modified.

       ENOMEM	 There is an error allocating memory for creating headers/parameters.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       libsip(3LIB)

SunOS 5.11							    25 Jan 2007 				     sip_add_branchid_to_via(3SIP)