Session Initiation Protocol Library Functions
sip_add_param(3SIP)
NAME
sip_add_param - add a parameter to the SIP header
SYNOPSIS
cc [ flag ... ] file ... -lsip [ library ... ]
#include
sip_header_t sip_add_param(sip_header_t sip_header, char *param,
int *error);DESCRIPTION
The sip_add_param() function adds the parameter provided in
param to the SIP header sip_header. The function returns the
header with the parameter added. A new header is created as a result of adding the parameter and the old header is marked deleted. Applications with multiple threads working on the same SIP header need to take note of this. If erroris non-null, it (the location pointer by the variable) is
set to 0 on success and the appropriate error value on error.RETURN VALUES
The sip_add_param() function returns the new header on suc-
cess and null on failure. Further, if error is non-null,
then on success the value in the location pointed by error is 0 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_param(), the header to be modified is
marked deleted. 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 attri-
butes:SunOS 5.11 Last change: 25 Jan 2007 1
Session Initiation Protocol Library Functionssip_add_param(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_add_param(3SIP)
SunOS 5.11 Last change: 25 Jan 2007 3