SIP_MSG_IS_REQUEST(3SIP) Session Initiation Protocol Library Functions
NAME
sip_msg_is_request, sip_message_is_response - determine if the SIP
message is a request or a response
SYNOPSIS
cc [
flag ... ]
file ...
-lsip [
library ... ]
#include <sip.h>
boolean_t sip_msg_is_request(
const sip_msg_t sip_msg,
int *error);
boolean_t sip_msg_is_response(
const sip_msg_t sip_msg,
int *error);
DESCRIPTION
The
sip_msg_is_request() function returns
B_TRUE if
sip_msg is a
request and
B_FALSE otherwise.
The
sip_msg_is_response() function returns
B_TRUE if
sip_msg is a
response and
B_FALSE otherwise.
RETURN VALUES
For functions that return an integer, the return value is the
specified value on success and
-1 on error.
The value of
errno is not changed by these calls in the event of an
error.
ERRORS
These functions take a pointer to an integer
error as an argument. If
the error is non-null, one of the following values is set:
EINVAL The input
SIP message
sip_msg or the header value is null;
or the specified header/header value is deleted.
EPROTO The header value is not present or invalid. The parser
could not parse it correctly.
ENOMEM There is an error allocating memory for the return value.
On success, the value of the location pointed to by
error is set to
0.
ATTRIBUTES
See
attributes(7) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Committed |
+--------------------+-----------------+
|MT-Level | MT-Safe |
+--------------------+-----------------+
SEE ALSO
libsip(3LIB) January 25, 2007 SIP_MSG_IS_REQUEST(3SIP)
