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Copyright (c) 2007, Sun Microsystems Inc. All Rights Reserved.
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
Copyright (c) 2007, Sun Microsystems Inc. All Rights Reserved.
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
sdp_find_attribute 3COMMPUTIL "12 Oct 2007" "SunOS 5.11" "Communication Protocol Parser Utilities Library Functions"
NAME
sdp_find_attribute - find the attribute from the attribute list
SYNOPSIS
cc [ flag...] file... -lcommputil [ library...] #include <sdp.h> sdp_attr_t *sdp_find_attribute(sdp_attr_t *attr, const char *name);
DESCRIPTION
The sdp_find_attribute() function searches the attribute list attr for the specified attribute name. If the attribute is found it returns the pointer to that attribute. Otherwise it returns NULL.
RETURN VALUES
The sdp_find_attribute() function returns the attribute (sdp_attr_t *) on success and NULL when the search fails or when mandatory input parameters are NULL.
EXAMPLES
Example 1 An (incomplete) SDP description that contains one media section: audio.
m=audio 49170 RTP/AVP 0 8 a=rtpmap:0 PCMU/8000 a=rtpmap:8 PCMA/8000 a=sendonly a=ptime:10000 a=maxptime:20000 /* * Assuming that above description is parsed using sdp_parse and that * the parsed structure is in "session" sdp_session_t structure. */ sdp_attr_t *ptime; sdp_attr_t *max_ptime; sdp_media_t *media = session->s_media; if ((ptime = sdp_find_attribute(media->m_attr, "ptime")) == NULL) /* ptime attribute not present */ else if((max_ptime = sdp_find_attribute(media->m_attr, "maxptime")) == NULL) /* max_ptime attribute not present */
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| Interface Stability | Committed |
| MT-Level | Safe |
SEE ALSO
libcommputil(3LIB), sdp_parse(3COMMPUTIL), attributes(5)