sip_get_cseq(3SIP) Session Initiation Protocol Library Functions sip_get_cseq(3SIP)NAME
sip_get_cseq, sip_get_rseq - get initial sequence number
SYNOPSIS
cc [ flag ... ] file ... -lsip [ library ... ]
#include <sip.h>
uint32_t sip_get_cseq();
uint32_t sip_get_rseq();
DESCRIPTION
The sip_get_cseq() and sip_get_rseq() functions can be used to generate an initial sequence number for the CSEQ and RSEQ headers.
RETURN VALUES
The value of errno is not changed by these calls in the event of an error.
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_get_cseq(3SIP)
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sip_branchid(3SIP) Session Initiation Protocol Library Functions sip_branchid(3SIP)NAME
sip_branchid - generate a RFC 3261 complaint branch ID
SYNOPSIS
cc [ flag ... ] file ... -lsip [ library ... ]
#include <sip.h>
char *sip_branchid(sip_msg_t sip_msg);
DESCRIPTION
The sip_branchid() function can be used to generate a value for the branch parameter for a VIA header. The returned string is prefixed with
z9hG4bK to conform to RFC 3261. If sip_msg is null or sip_msg does not have a VIA header, a random value is generated. Otherwise, the value
is generated using the MD5 hash of the VIA, FROM, CALL-ID, CSEQ headers and the URI from the request line. The caller is responsible for
freeing the returned string.
RETURN VALUES
The sip_branchid() function returns a string on success and NULL on failure.
The value of errno is not changed by these calls in the event of an error.
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_branchid(3SIP)
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