Session Initiation Protocol Library Functions
sip_register_sent_by(3SIP)
NAME
sip_register_sent_by, sip_unregister_sent_by,
sip_unregister_all_sent_by - allows registering and un-
registering sent-by values
SYNOPSIS
cc [ flag ... ] file ... -lsip [ library ... ]
#include
int sip_register_sent_by(char *val);
void sip_unregister_sent_by(char *val);
void sip_unregister_all_sent_by(int *error);
DESCRIPTION
The sip_register_sent_by() function can be used to register
a list of hostnames or IP addresses that the application may add to the VIA headers. The val is a comma separated list ofsuch sent-by values. If any value is registered using
sip_register_sent_by(), the SIP stack validates incoming
responses to check if the sent-by parameter in the topmost
VIA header is part of the registered list. If the checkfails, the response is dropped. If there are no sent-by
values registered, there is no check done on incoming responses.The sip_unregister_sent_by() and
sip_unregister_all_sent_by() functions are used to un-
register sent-by values. The val for
sip_unregister_sent_by() is a comma separated list of sent-
by values that need to be un-registered.
sip_unregister_all_sent_by() un-registers all the values
that have been registered.RETURN VALUES
The sip_register_sent_by() function returns 0 on success and
the appropriate error value 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 attri-
butes:SunOS 5.11 Last change: 25 Jan 2007 1
Session Initiation Protocol Library Functionssip_register_sent_by(3SIP)
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Interface Stability | Committed ||_____________________________|_____________________________|
| MT-Level | MT-Safe |
|_____________________________|_____________________________|
SEE ALSO
libsip(3LIB)SunOS 5.11 Last change: 25 Jan 2007 2
Session Initiation Protocol Library Functionssip_register_sent_by(3SIP)
SunOS 5.11 Last change: 25 Jan 2007 3