1sdp_find_attCroimbmuutnei(c3aCtOiMoMnPUPTrIoLt)ocol Parser UtilitiessdpL_ifbirnadr_yatFturnicbtuitoen(s3COMMPUTIL)
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NAME

6       sdp_find_attribute - find the attribute from the attribute list
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SYNOPSIS

9       cc [ flag...] file... -lcommputil [ library...]
10       #include <sdp.h>
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12       sdp_attr_t *sdp_find_attribute(sdp_attr_t *attr, const char *name);
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DESCRIPTION

16       The  sdp_find_attribute() function searches the attribute list attr for
17       the specified attribute name. If the attribute is found it returns  the
18       pointer to that attribute. Otherwise it returns NULL.
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RETURN VALUES

21       The  sdp_find_attribute() function returns the attribute (sdp_attr_t *)
22       on success and NULL when the  search  fails  or  when  mandatory  input
23       parameters are NULL.
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EXAMPLES

26       Example  1 An (incomplete) SDP description that contains one media sec‐
27       tion: audio.
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29         m=audio 49170 RTP/AVP 0 8
30         a=rtpmap:0 PCMU/8000
31         a=rtpmap:8 PCMA/8000
32         a=sendonly
33         a=ptime:10000
34         a=maxptime:20000
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36         /*
37          * Assuming that above description is parsed using sdp_parse and that
38          * the parsed structure is in "session" sdp_session_t structure.
39          */
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41         sdp_attr_t *ptime;
42         sdp_attr_t *max_ptime;
43         sdp_media_t *media = session->s_media;
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45         if ((ptime = sdp_find_attribute(media->m_attr, "ptime")) == NULL)
46                 /* ptime attribute not present */
47         else if((max_ptime = sdp_find_attribute(media->m_attr,
48                  "maxptime")) == NULL)
49                 /* max_ptime attribute not present */
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ATTRIBUTES

53       See attributes(5) for descriptions of the following attributes:
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58       ┌─────────────────────────────┬─────────────────────────────┐
59       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
60       ├─────────────────────────────┼─────────────────────────────┤
61       │Interface Stability          │Committed                    │
62       ├─────────────────────────────┼─────────────────────────────┤
63       │MT-Level                     │Safe                         │
64       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

67       libcommputil(3LIB), sdp_parse(3COMMPUTIL), attributes(5)
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71SunOS 5.11                        12 Oct 2007   sdp_find_attribute(3COMMPUTIL)
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