1sip_add_branchid_tSoe_svsiiao(n3SIInPi)tiation Protocol Librasriyp_Faudndc_tbiroannschid_to_via(3SIP)
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NAME

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

10       cc [ flag ... ] file ... -lsip [ library ... ]
11       #include <sip.h>
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13       int sip_add_branchid_to_via(sip_msg_t sip_msg, char *branchid);
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DESCRIPTION

17       The sip_add_branchid_to_via() function adds a branch param to the  top‐
18       most  VIA  header in the SIP message sip_msg. Note that a new header is
19       created as a result of adding the branch parameter and the  old  header
20       is  marked  deleted.  Applications with multiple threads working on the
21       same VIA header need to take note of this.
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RETURN VALUES

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

28       On  failure, functions that return an error value may return one of the
29       following:
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31       EINVAL    Mandatory parameters are not provided or are NULL.
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33                 For sip_add_branchid_to_via(), the topmost VIA header already
34                 has  a  branch  param  or the SIP message does not have a VIA
35                 header.
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38       EPERM     The message cannot be modified.
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41       ENOMEM    There is  an  error  allocating  memory  for  creating  head‐
42                 ers/parameters.
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ATTRIBUTES

46       See attributes(5) for descriptions of the following attributes:
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51       ┌─────────────────────────────┬─────────────────────────────┐
52       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
53       ├─────────────────────────────┼─────────────────────────────┤
54       │Interface Stability          │Committed                    │
55       ├─────────────────────────────┼─────────────────────────────┤
56       │MT-Level                     │MT-Safe                      │
57       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

60       libsip(3LIB)
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64SunOS 5.11                        25 Jan 2007    sip_add_branchid_to_via(3SIP)
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