sip_add_branchid_Session3Initiation Protocol Librsip_add_branchid_to_via(3SIP)NAMEsip_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 top‐
most 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, i.e. 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 head‐
ers/parameters.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Stable │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOlibsip(3SIP)SunOS 5.10 19 Mar 2007 sip_add_branchid_to_via(3SIP)
