1*a93a1f58Sgm /*
2*a93a1f58Sgm * CDDL HEADER START
3*a93a1f58Sgm *
4*a93a1f58Sgm * The contents of this file are subject to the terms of the
5*a93a1f58Sgm * Common Development and Distribution License (the "License").
6*a93a1f58Sgm * You may not use this file except in compliance with the License.
7*a93a1f58Sgm *
8*a93a1f58Sgm * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9*a93a1f58Sgm * or http://www.opensolaris.org/os/licensing.
10*a93a1f58Sgm * See the License for the specific language governing permissions
11*a93a1f58Sgm * and limitations under the License.
12*a93a1f58Sgm *
13*a93a1f58Sgm * When distributing Covered Code, include this CDDL HEADER in each
14*a93a1f58Sgm * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15*a93a1f58Sgm * If applicable, add the following below this CDDL HEADER, with the
16*a93a1f58Sgm * fields enclosed by brackets "[]" replaced with your own identifying
17*a93a1f58Sgm * information: Portions Copyright [yyyy] [name of copyright owner]
18*a93a1f58Sgm *
19*a93a1f58Sgm * CDDL HEADER END
20*a93a1f58Sgm */
21*a93a1f58Sgm
22*a93a1f58Sgm /*
23*a93a1f58Sgm * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
24*a93a1f58Sgm * Use is subject to license terms.
25*a93a1f58Sgm */
26*a93a1f58Sgm
27*a93a1f58Sgm /*
28*a93a1f58Sgm * Contains implementation of various interfaces exported by library
29*a93a1f58Sgm */
30*a93a1f58Sgm
31*a93a1f58Sgm #include <stdio.h>
32*a93a1f58Sgm #include <assert.h>
33*a93a1f58Sgm #include <errno.h>
34*a93a1f58Sgm #include <stdlib.h>
35*a93a1f58Sgm #include <string.h>
36*a93a1f58Sgm #include <ctype.h>
37*a93a1f58Sgm #include <sdp.h>
38*a93a1f58Sgm
39*a93a1f58Sgm #include "sdp_parse.h"
40*a93a1f58Sgm #include "commp_util.h"
41*a93a1f58Sgm
42*a93a1f58Sgm #define FIELD_EQUALS_CRLF_LEN 4 /* first two characters and CRLF */
43*a93a1f58Sgm
44*a93a1f58Sgm #define SDP_ATTR_TO_STR(m_attr) { \
45*a93a1f58Sgm while ((m_attr) != NULL) { \
46*a93a1f58Sgm if ((m_attr)->a_value != NULL) { \
47*a93a1f58Sgm wrote = snprintf(buf, len, "a=%s%c%s%s", \
48*a93a1f58Sgm (m_attr)->a_name, COMMP_COLON, (m_attr)-> \
49*a93a1f58Sgm a_value, COMMP_CRLF); \
50*a93a1f58Sgm } else { \
51*a93a1f58Sgm wrote = snprintf(buf, len, "a=%s%s", (m_attr)-> \
52*a93a1f58Sgm a_name, COMMP_CRLF); \
53*a93a1f58Sgm } \
54*a93a1f58Sgm len = len - wrote; \
55*a93a1f58Sgm buf = buf + wrote; \
56*a93a1f58Sgm (m_attr) = (m_attr)->a_next; \
57*a93a1f58Sgm } \
58*a93a1f58Sgm }
59*a93a1f58Sgm
60*a93a1f58Sgm #define SDP_KEY_TO_STR(m_key) { \
61*a93a1f58Sgm if ((m_key) != NULL) { \
62*a93a1f58Sgm if ((m_key)->k_enckey != NULL) { \
63*a93a1f58Sgm wrote = snprintf(buf, len, "k=%s%c%s%s", \
64*a93a1f58Sgm (m_key)->k_method, COMMP_COLON, (m_key)-> \
65*a93a1f58Sgm k_enckey, COMMP_CRLF); \
66*a93a1f58Sgm } else { \
67*a93a1f58Sgm wrote = snprintf(buf, len, "k=%s%s", (m_key)-> \
68*a93a1f58Sgm k_method, COMMP_CRLF); \
69*a93a1f58Sgm } \
70*a93a1f58Sgm len = len - wrote; \
71*a93a1f58Sgm buf = buf + wrote; \
72*a93a1f58Sgm } \
73*a93a1f58Sgm }
74*a93a1f58Sgm
75*a93a1f58Sgm #define SDP_BANDWIDTH_TO_STR(m_bw) { \
76*a93a1f58Sgm while ((m_bw) != NULL) { \
77*a93a1f58Sgm wrote = snprintf(buf, len, "b=%s%c%llu%s", (m_bw)-> \
78*a93a1f58Sgm b_type, COMMP_COLON, (m_bw)->b_value, COMMP_CRLF); \
79*a93a1f58Sgm len = len - wrote; \
80*a93a1f58Sgm buf = buf + wrote; \
81*a93a1f58Sgm (m_bw) = (m_bw)->b_next; \
82*a93a1f58Sgm } \
83*a93a1f58Sgm }
84*a93a1f58Sgm
85*a93a1f58Sgm #define SDP_INFORMATION_TO_STR(m_info) { \
86*a93a1f58Sgm if ((m_info) != NULL) { \
87*a93a1f58Sgm wrote = snprintf(buf, len, "i=%s%s", (m_info), COMMP_CRLF); \
88*a93a1f58Sgm len = len - wrote; \
89*a93a1f58Sgm buf = buf + wrote; \
90*a93a1f58Sgm } \
91*a93a1f58Sgm }
92*a93a1f58Sgm
93*a93a1f58Sgm #define SDP_CONNECTION_TO_STR(m_conn) { \
94*a93a1f58Sgm while ((m_conn) != NULL) { \
95*a93a1f58Sgm if (strcasecmp((m_conn)->c_addrtype, \
96*a93a1f58Sgm COMMP_ADDRTYPE_IP4) == 0) { \
97*a93a1f58Sgm if ((m_conn)->c_addrcount > 1) { \
98*a93a1f58Sgm wrote = snprintf(buf, len, "c=%s %s %s/%d/%d" \
99*a93a1f58Sgm "%s", (m_conn)->c_nettype, (m_conn)-> \
100*a93a1f58Sgm c_addrtype, (m_conn)->c_address, (m_conn)->\
101*a93a1f58Sgm c_ttl, (m_conn)->c_addrcount, COMMP_CRLF); \
102*a93a1f58Sgm } else if ((m_conn)->c_addrcount == 1) { \
103*a93a1f58Sgm wrote = snprintf(buf, len, "c=%s %s %s/%d%s", \
104*a93a1f58Sgm (m_conn)->c_nettype, (m_conn)->c_addrtype, \
105*a93a1f58Sgm (m_conn)->c_address, (m_conn)->c_ttl, \
106*a93a1f58Sgm COMMP_CRLF); \
107*a93a1f58Sgm } else { \
108*a93a1f58Sgm wrote = snprintf(buf, len, "c=%s %s %s%s", \
109*a93a1f58Sgm (m_conn)->c_nettype, (m_conn)->c_addrtype, \
110*a93a1f58Sgm (m_conn)->c_address, COMMP_CRLF); \
111*a93a1f58Sgm } \
112*a93a1f58Sgm } else if (strcasecmp((m_conn)->c_addrtype, \
113*a93a1f58Sgm COMMP_ADDRTYPE_IP6) == 0) { \
114*a93a1f58Sgm if ((m_conn)->c_addrcount <= 1) { \
115*a93a1f58Sgm wrote = snprintf(buf, len, "c=%s %s %s%s", \
116*a93a1f58Sgm (m_conn)->c_nettype, (m_conn)->c_addrtype, \
117*a93a1f58Sgm (m_conn)->c_address, COMMP_CRLF); \
118*a93a1f58Sgm } else { \
119*a93a1f58Sgm wrote = snprintf(buf, len, "c=%s %s %s/%d%s", \
120*a93a1f58Sgm (m_conn)->c_nettype, (m_conn)->c_addrtype, \
121*a93a1f58Sgm (m_conn)->c_address, (m_conn)->c_addrcount,\
122*a93a1f58Sgm COMMP_CRLF); \
123*a93a1f58Sgm } \
124*a93a1f58Sgm } else { \
125*a93a1f58Sgm wrote = snprintf(buf, len, "c=%s %s %s%s", (m_conn)-> \
126*a93a1f58Sgm c_nettype, (m_conn)->c_addrtype, (m_conn)-> \
127*a93a1f58Sgm c_address, COMMP_CRLF); \
128*a93a1f58Sgm } \
129*a93a1f58Sgm len = len - wrote; \
130*a93a1f58Sgm buf = buf + wrote; \
131*a93a1f58Sgm (m_conn) = (m_conn)->c_next; \
132*a93a1f58Sgm } \
133*a93a1f58Sgm }
134*a93a1f58Sgm
135*a93a1f58Sgm #define SDP_ADD_KEY(d_key, s_key) { \
136*a93a1f58Sgm if ((s_key) != NULL) { \
137*a93a1f58Sgm if (sdp_add_key(&(d_key), (s_key)->k_method, \
138*a93a1f58Sgm (s_key)->k_enckey) != 0) { \
139*a93a1f58Sgm sdp_free_session(new_sess); \
140*a93a1f58Sgm return (NULL); \
141*a93a1f58Sgm } \
142*a93a1f58Sgm } \
143*a93a1f58Sgm }
144*a93a1f58Sgm
145*a93a1f58Sgm #define SDP_ADD_ATTRIBUTE(d_attr, s_attr) { \
146*a93a1f58Sgm while ((s_attr) != NULL) { \
147*a93a1f58Sgm if (sdp_add_attribute(&(d_attr), (s_attr)->a_name, \
148*a93a1f58Sgm (s_attr)->a_value) != 0) { \
149*a93a1f58Sgm sdp_free_session(new_sess); \
150*a93a1f58Sgm return (NULL); \
151*a93a1f58Sgm } \
152*a93a1f58Sgm (s_attr) = (s_attr)->a_next; \
153*a93a1f58Sgm } \
154*a93a1f58Sgm }
155*a93a1f58Sgm
156*a93a1f58Sgm #define SDP_ADD_BANDWIDTH(d_bw, s_bw) { \
157*a93a1f58Sgm while ((s_bw) != NULL) { \
158*a93a1f58Sgm if (sdp_add_bandwidth(&(d_bw), (s_bw)->b_type, \
159*a93a1f58Sgm (s_bw)->b_value) != 0) { \
160*a93a1f58Sgm sdp_free_session(new_sess); \
161*a93a1f58Sgm return (NULL); \
162*a93a1f58Sgm } \
163*a93a1f58Sgm (s_bw) = (s_bw)->b_next; \
164*a93a1f58Sgm } \
165*a93a1f58Sgm }
166*a93a1f58Sgm
167*a93a1f58Sgm #define SDP_ADD_CONNECTION(d_conn, s_conn) { \
168*a93a1f58Sgm while ((s_conn) != NULL) { \
169*a93a1f58Sgm if (sdp_add_connection(&(d_conn), (s_conn)->c_nettype, \
170*a93a1f58Sgm (s_conn)->c_addrtype, (s_conn)->c_address, \
171*a93a1f58Sgm (s_conn)->c_ttl, (s_conn)->c_addrcount) != 0) { \
172*a93a1f58Sgm sdp_free_session(new_sess); \
173*a93a1f58Sgm return (NULL); \
174*a93a1f58Sgm } \
175*a93a1f58Sgm (s_conn) = (s_conn)->c_next; \
176*a93a1f58Sgm } \
177*a93a1f58Sgm }
178*a93a1f58Sgm
179*a93a1f58Sgm #define SDP_LEN_CONNECTION(m_conn) { \
180*a93a1f58Sgm while ((m_conn) != NULL) { \
181*a93a1f58Sgm len += FIELD_EQUALS_CRLF_LEN; \
182*a93a1f58Sgm len += strlen((m_conn)->c_nettype); \
183*a93a1f58Sgm len += strlen((m_conn)->c_addrtype) + 1; \
184*a93a1f58Sgm len += strlen((m_conn)->c_address) + 1; \
185*a93a1f58Sgm len += snprintf(buf, 1, "%u", (m_conn)->c_ttl) + 1; \
186*a93a1f58Sgm len += snprintf(buf, 1, "%d", (m_conn)->c_addrcount) + 1; \
187*a93a1f58Sgm (m_conn) = (m_conn)->c_next; \
188*a93a1f58Sgm } \
189*a93a1f58Sgm }
190*a93a1f58Sgm
191*a93a1f58Sgm #define SDP_LEN_BANDWIDTH(m_bw) { \
192*a93a1f58Sgm while ((m_bw) != NULL) { \
193*a93a1f58Sgm len += FIELD_EQUALS_CRLF_LEN; \
194*a93a1f58Sgm len += strlen((m_bw)->b_type); \
195*a93a1f58Sgm len += snprintf(buf, 1, "%llu", (m_bw)->b_value) + 1; \
196*a93a1f58Sgm (m_bw) = (m_bw)->b_next; \
197*a93a1f58Sgm } \
198*a93a1f58Sgm }
199*a93a1f58Sgm
200*a93a1f58Sgm #define SDP_LEN_KEY(m_key) { \
201*a93a1f58Sgm if ((m_key) != NULL) { \
202*a93a1f58Sgm len += FIELD_EQUALS_CRLF_LEN; \
203*a93a1f58Sgm len += strlen((m_key)->k_method); \
204*a93a1f58Sgm if ((m_key)->k_enckey != NULL) \
205*a93a1f58Sgm len += strlen((m_key)->k_enckey) + 1; \
206*a93a1f58Sgm } \
207*a93a1f58Sgm }
208*a93a1f58Sgm
209*a93a1f58Sgm #define SDP_LEN_ATTRIBUTE(m_attr) { \
210*a93a1f58Sgm while ((m_attr) != NULL) { \
211*a93a1f58Sgm len += FIELD_EQUALS_CRLF_LEN; \
212*a93a1f58Sgm len += strlen((m_attr)->a_name); \
213*a93a1f58Sgm if ((m_attr)->a_value != NULL) \
214*a93a1f58Sgm len += strlen((m_attr)->a_value) + 1; \
215*a93a1f58Sgm (m_attr) = (m_attr)->a_next; \
216*a93a1f58Sgm } \
217*a93a1f58Sgm }
218*a93a1f58Sgm
219*a93a1f58Sgm /*
220*a93a1f58Sgm * Given a media list and media name ("audio", "video", et al), it searches
221*a93a1f58Sgm * the list for that media. Returns NULL if media not present.
222*a93a1f58Sgm */
223*a93a1f58Sgm sdp_media_t *
sdp_find_media(sdp_media_t * media,const char * name)224*a93a1f58Sgm sdp_find_media(sdp_media_t *media, const char *name)
225*a93a1f58Sgm {
226*a93a1f58Sgm if (media == NULL || name == NULL || (strlen(name) == 0)) {
227*a93a1f58Sgm return (NULL);
228*a93a1f58Sgm }
229*a93a1f58Sgm while (media != NULL) {
230*a93a1f58Sgm if (media->m_name != NULL) {
231*a93a1f58Sgm if (strcasecmp(name, media->m_name) == 0)
232*a93a1f58Sgm return (media);
233*a93a1f58Sgm }
234*a93a1f58Sgm media = media->m_next;
235*a93a1f58Sgm }
236*a93a1f58Sgm return (media);
237*a93a1f58Sgm }
238*a93a1f58Sgm
239*a93a1f58Sgm /*
240*a93a1f58Sgm * Given a attribute list and name of the attribute ("rtpmap", "fmtp", et al),
241*a93a1f58Sgm * this API searches the list for that attribute. Returns NULL if not found.
242*a93a1f58Sgm */
243*a93a1f58Sgm sdp_attr_t *
sdp_find_attribute(sdp_attr_t * attr,const char * name)244*a93a1f58Sgm sdp_find_attribute(sdp_attr_t *attr, const char *name)
245*a93a1f58Sgm {
246*a93a1f58Sgm if (attr == NULL || name == NULL || (strlen(name) == 0)) {
247*a93a1f58Sgm return (NULL);
248*a93a1f58Sgm }
249*a93a1f58Sgm while (attr != NULL) {
250*a93a1f58Sgm if (attr->a_name != NULL) {
251*a93a1f58Sgm if (strcasecmp(attr->a_name, name) == 0)
252*a93a1f58Sgm return (attr);
253*a93a1f58Sgm }
254*a93a1f58Sgm attr = attr->a_next;
255*a93a1f58Sgm }
256*a93a1f58Sgm return (attr);
257*a93a1f58Sgm }
258*a93a1f58Sgm
259*a93a1f58Sgm /*
260*a93a1f58Sgm * Given a media list and a format number, this API will return the rtpmap
261*a93a1f58Sgm * attribute matching the format number.
262*a93a1f58Sgm */
263*a93a1f58Sgm sdp_attr_t *
sdp_find_media_rtpmap(sdp_media_t * media,const char * format)264*a93a1f58Sgm sdp_find_media_rtpmap(sdp_media_t *media, const char *format)
265*a93a1f58Sgm {
266*a93a1f58Sgm sdp_attr_t *attr = NULL;
267*a93a1f58Sgm char *tmp = NULL;
268*a93a1f58Sgm
269*a93a1f58Sgm if (media == NULL || format == NULL || (strlen(format) == 0)) {
270*a93a1f58Sgm return (NULL);
271*a93a1f58Sgm }
272*a93a1f58Sgm attr = media->m_attr;
273*a93a1f58Sgm while (attr != NULL) {
274*a93a1f58Sgm if (attr->a_name != NULL && (strcasecmp(attr->a_name,
275*a93a1f58Sgm SDP_RTPMAP) == 0)) {
276*a93a1f58Sgm if (attr->a_value != NULL) {
277*a93a1f58Sgm tmp = attr->a_value;
278*a93a1f58Sgm while (isspace(*tmp))
279*a93a1f58Sgm ++tmp;
280*a93a1f58Sgm if (strncasecmp(tmp, format,
281*a93a1f58Sgm strlen(format)) == 0) {
282*a93a1f58Sgm return (attr);
283*a93a1f58Sgm }
284*a93a1f58Sgm }
285*a93a1f58Sgm }
286*a93a1f58Sgm attr = attr->a_next;
287*a93a1f58Sgm }
288*a93a1f58Sgm return (attr);
289*a93a1f58Sgm }
290*a93a1f58Sgm
291*a93a1f58Sgm /*
292*a93a1f58Sgm * Adds origin field to the session.
293*a93a1f58Sgm * o=<username> <sess-id> <sess-version> <nettype> <addrtype> <unicast-address>
294*a93a1f58Sgm */
295*a93a1f58Sgm int
sdp_add_origin(sdp_session_t * session,const char * name,uint64_t id,uint64_t ver,const char * nettype,const char * addrtype,const char * address)296*a93a1f58Sgm sdp_add_origin(sdp_session_t *session, const char *name, uint64_t id,
297*a93a1f58Sgm uint64_t ver, const char *nettype, const char *addrtype,
298*a93a1f58Sgm const char *address)
299*a93a1f58Sgm {
300*a93a1f58Sgm sdp_origin_t *origin;
301*a93a1f58Sgm int ret = 0;
302*a93a1f58Sgm
303*a93a1f58Sgm if (session == NULL || name == NULL || nettype == NULL ||
304*a93a1f58Sgm addrtype == NULL || address == NULL) {
305*a93a1f58Sgm return (EINVAL);
306*a93a1f58Sgm }
307*a93a1f58Sgm if (session->s_origin != NULL)
308*a93a1f58Sgm return (EPROTO);
309*a93a1f58Sgm origin = calloc(1, sizeof (sdp_origin_t));
310*a93a1f58Sgm if (origin == NULL)
311*a93a1f58Sgm return (ENOMEM);
312*a93a1f58Sgm origin->o_id = id;
313*a93a1f58Sgm origin->o_version = ver;
314*a93a1f58Sgm if ((ret = commp_add_str(&origin->o_username, name, strlen(name))) != 0)
315*a93a1f58Sgm goto err_ret;
316*a93a1f58Sgm if ((ret = commp_add_str(&origin->o_nettype, nettype,
317*a93a1f58Sgm strlen(nettype))) != 0) {
318*a93a1f58Sgm goto err_ret;
319*a93a1f58Sgm }
320*a93a1f58Sgm if ((ret = commp_add_str(&origin->o_addrtype, addrtype,
321*a93a1f58Sgm strlen(addrtype))) != 0) {
322*a93a1f58Sgm goto err_ret;
323*a93a1f58Sgm }
324*a93a1f58Sgm if ((ret = commp_add_str(&origin->o_address, address,
325*a93a1f58Sgm strlen(address))) != 0) {
326*a93a1f58Sgm goto err_ret;
327*a93a1f58Sgm }
328*a93a1f58Sgm session->s_origin = origin;
329*a93a1f58Sgm return (ret);
330*a93a1f58Sgm err_ret:
331*a93a1f58Sgm sdp_free_origin(origin);
332*a93a1f58Sgm return (ret);
333*a93a1f58Sgm }
334*a93a1f58Sgm
335*a93a1f58Sgm /*
336*a93a1f58Sgm * Adds session name field to the session.
337*a93a1f58Sgm * s=<session name>
338*a93a1f58Sgm */
339*a93a1f58Sgm int
sdp_add_name(sdp_session_t * session,const char * name)340*a93a1f58Sgm sdp_add_name(sdp_session_t *session, const char *name)
341*a93a1f58Sgm {
342*a93a1f58Sgm if (session == NULL || name == NULL)
343*a93a1f58Sgm return (EINVAL);
344*a93a1f58Sgm if (session->s_name != NULL)
345*a93a1f58Sgm return (EPROTO);
346*a93a1f58Sgm return (commp_add_str(&session->s_name, name, strlen(name)));
347*a93a1f58Sgm }
348*a93a1f58Sgm
349*a93a1f58Sgm /*
350*a93a1f58Sgm * Adds session information field to the session or media section of SDP.
351*a93a1f58Sgm * i=<session description>
352*a93a1f58Sgm */
353*a93a1f58Sgm int
sdp_add_information(char ** information,const char * value)354*a93a1f58Sgm sdp_add_information(char **information, const char *value)
355*a93a1f58Sgm {
356*a93a1f58Sgm if (information == NULL || value == NULL)
357*a93a1f58Sgm return (EINVAL);
358*a93a1f58Sgm if (*information != NULL)
359*a93a1f58Sgm return (EPROTO);
360*a93a1f58Sgm return (commp_add_str(information, value, strlen(value)));
361*a93a1f58Sgm }
362*a93a1f58Sgm
363*a93a1f58Sgm /*
364*a93a1f58Sgm * Adds uri field to the session.
365*a93a1f58Sgm * u=<uri>
366*a93a1f58Sgm */
367*a93a1f58Sgm int
sdp_add_uri(sdp_session_t * session,const char * uri)368*a93a1f58Sgm sdp_add_uri(sdp_session_t *session, const char *uri)
369*a93a1f58Sgm {
370*a93a1f58Sgm if (session == NULL || uri == NULL)
371*a93a1f58Sgm return (EINVAL);
372*a93a1f58Sgm if (session->s_uri != NULL)
373*a93a1f58Sgm return (EPROTO);
374*a93a1f58Sgm return (commp_add_str(&session->s_uri, uri, strlen(uri)));
375*a93a1f58Sgm }
376*a93a1f58Sgm
377*a93a1f58Sgm /*
378*a93a1f58Sgm * Adds email address field to the session.
379*a93a1f58Sgm * e=<email-address>
380*a93a1f58Sgm */
381*a93a1f58Sgm int
sdp_add_email(sdp_session_t * session,const char * email)382*a93a1f58Sgm sdp_add_email(sdp_session_t *session, const char *email)
383*a93a1f58Sgm {
384*a93a1f58Sgm if (session == NULL || email == NULL || (strlen(email) == 0))
385*a93a1f58Sgm return (EINVAL);
386*a93a1f58Sgm return (add_value_to_list(&session->s_email, email, strlen(email),
387*a93a1f58Sgm B_TRUE));
388*a93a1f58Sgm }
389*a93a1f58Sgm
390*a93a1f58Sgm /*
391*a93a1f58Sgm * Adds phone number field to the session.
392*a93a1f58Sgm * p=<phone-number>
393*a93a1f58Sgm */
394*a93a1f58Sgm int
sdp_add_phone(sdp_session_t * session,const char * phone)395*a93a1f58Sgm sdp_add_phone(sdp_session_t *session, const char *phone)
396*a93a1f58Sgm {
397*a93a1f58Sgm if (session == NULL || phone == NULL || (strlen(phone) == 0))
398*a93a1f58Sgm return (EINVAL);
399*a93a1f58Sgm return (add_value_to_list(&session->s_phone, phone, strlen(phone),
400*a93a1f58Sgm B_TRUE));
401*a93a1f58Sgm }
402*a93a1f58Sgm
403*a93a1f58Sgm /*
404*a93a1f58Sgm * Adds connection field to the session or media section of SDP
405*a93a1f58Sgm * c=<nettype> <addrtype> <connection-address>[/ttl]/<number of addresses>
406*a93a1f58Sgm */
407*a93a1f58Sgm int
sdp_add_connection(sdp_conn_t ** conn,const char * nettype,const char * addrtype,const char * address,uint8_t ttl,int addrcount)408*a93a1f58Sgm sdp_add_connection(sdp_conn_t **conn, const char *nettype, const char *addrtype,
409*a93a1f58Sgm const char *address, uint8_t ttl, int addrcount)
410*a93a1f58Sgm {
411*a93a1f58Sgm sdp_conn_t *tmp;
412*a93a1f58Sgm sdp_conn_t *new_conn;
413*a93a1f58Sgm int ret = 0;
414*a93a1f58Sgm
415*a93a1f58Sgm if (conn == NULL || nettype == NULL || addrtype == NULL ||
416*a93a1f58Sgm address == NULL) {
417*a93a1f58Sgm return (EINVAL);
418*a93a1f58Sgm }
419*a93a1f58Sgm new_conn = calloc(1, sizeof (sdp_conn_t));
420*a93a1f58Sgm if (new_conn == NULL)
421*a93a1f58Sgm return (ENOMEM);
422*a93a1f58Sgm new_conn->c_ttl = ttl;
423*a93a1f58Sgm new_conn->c_addrcount = addrcount;
424*a93a1f58Sgm if ((ret = commp_add_str(&new_conn->c_nettype, nettype,
425*a93a1f58Sgm strlen(nettype))) != 0) {
426*a93a1f58Sgm goto err_ret;
427*a93a1f58Sgm }
428*a93a1f58Sgm if ((ret = commp_add_str(&new_conn->c_addrtype, addrtype,
429*a93a1f58Sgm strlen(addrtype))) != 0) {
430*a93a1f58Sgm goto err_ret;
431*a93a1f58Sgm }
432*a93a1f58Sgm if ((ret = commp_add_str(&new_conn->c_address, address,
433*a93a1f58Sgm strlen(address))) != 0) {
434*a93a1f58Sgm goto err_ret;
435*a93a1f58Sgm }
436*a93a1f58Sgm if (*conn == NULL) {
437*a93a1f58Sgm *conn = new_conn;
438*a93a1f58Sgm } else {
439*a93a1f58Sgm tmp = *conn;
440*a93a1f58Sgm while (tmp->c_next != NULL)
441*a93a1f58Sgm tmp = tmp->c_next;
442*a93a1f58Sgm tmp->c_next = new_conn;
443*a93a1f58Sgm }
444*a93a1f58Sgm return (ret);
445*a93a1f58Sgm err_ret:
446*a93a1f58Sgm sdp_free_connection(new_conn);
447*a93a1f58Sgm return (ret);
448*a93a1f58Sgm }
449*a93a1f58Sgm
450*a93a1f58Sgm /*
451*a93a1f58Sgm * Adds bandwidth field to the session or media section of SDP.
452*a93a1f58Sgm * b=<bwtype>:<bandwidth>
453*a93a1f58Sgm */
454*a93a1f58Sgm int
sdp_add_bandwidth(sdp_bandwidth_t ** bw,const char * type,uint64_t value)455*a93a1f58Sgm sdp_add_bandwidth(sdp_bandwidth_t **bw, const char *type, uint64_t value)
456*a93a1f58Sgm {
457*a93a1f58Sgm sdp_bandwidth_t *new_bw;
458*a93a1f58Sgm sdp_bandwidth_t *tmp;
459*a93a1f58Sgm int ret = 0;
460*a93a1f58Sgm
461*a93a1f58Sgm if (bw == NULL || type == NULL)
462*a93a1f58Sgm return (EINVAL);
463*a93a1f58Sgm new_bw = calloc(1, sizeof (sdp_bandwidth_t));
464*a93a1f58Sgm if (new_bw == NULL)
465*a93a1f58Sgm return (ENOMEM);
466*a93a1f58Sgm new_bw->b_value = value;
467*a93a1f58Sgm if ((ret = commp_add_str(&new_bw->b_type, type, strlen(type))) != 0) {
468*a93a1f58Sgm free(new_bw);
469*a93a1f58Sgm return (ret);
470*a93a1f58Sgm }
471*a93a1f58Sgm if (*bw == NULL) {
472*a93a1f58Sgm *bw = new_bw;
473*a93a1f58Sgm } else {
474*a93a1f58Sgm tmp = *bw;
475*a93a1f58Sgm while (tmp->b_next != NULL)
476*a93a1f58Sgm tmp = tmp->b_next;
477*a93a1f58Sgm tmp->b_next = new_bw;
478*a93a1f58Sgm }
479*a93a1f58Sgm return (ret);
480*a93a1f58Sgm }
481*a93a1f58Sgm
482*a93a1f58Sgm /*
483*a93a1f58Sgm * Adds time field to the session
484*a93a1f58Sgm * t=<start-time> <stop-time>
485*a93a1f58Sgm */
486*a93a1f58Sgm int
sdp_add_time(sdp_session_t * session,uint64_t starttime,uint64_t stoptime,sdp_time_t ** time)487*a93a1f58Sgm sdp_add_time(sdp_session_t *session, uint64_t starttime, uint64_t stoptime,
488*a93a1f58Sgm sdp_time_t **time)
489*a93a1f58Sgm {
490*a93a1f58Sgm sdp_time_t *new_time;
491*a93a1f58Sgm sdp_time_t *tmp;
492*a93a1f58Sgm
493*a93a1f58Sgm if (time != NULL)
494*a93a1f58Sgm *time = NULL;
495*a93a1f58Sgm if (session == NULL) {
496*a93a1f58Sgm return (EINVAL);
497*a93a1f58Sgm }
498*a93a1f58Sgm new_time = calloc(1, sizeof (sdp_time_t));
499*a93a1f58Sgm if (new_time == NULL) {
500*a93a1f58Sgm return (ENOMEM);
501*a93a1f58Sgm }
502*a93a1f58Sgm new_time->t_start = starttime;
503*a93a1f58Sgm new_time->t_stop = stoptime;
504*a93a1f58Sgm tmp = session->s_time;
505*a93a1f58Sgm if (tmp == NULL)
506*a93a1f58Sgm session->s_time = new_time;
507*a93a1f58Sgm else {
508*a93a1f58Sgm while (tmp->t_next != NULL)
509*a93a1f58Sgm tmp = tmp->t_next;
510*a93a1f58Sgm tmp->t_next = new_time;
511*a93a1f58Sgm }
512*a93a1f58Sgm if (time != NULL)
513*a93a1f58Sgm *time = new_time;
514*a93a1f58Sgm return (0);
515*a93a1f58Sgm }
516*a93a1f58Sgm
517*a93a1f58Sgm /*
518*a93a1f58Sgm * Adds repeat field to the time structure of session
519*a93a1f58Sgm * r=<repeat interval> <active duration> <offsets from start-time>
520*a93a1f58Sgm */
521*a93a1f58Sgm int
sdp_add_repeat(sdp_time_t * time,uint64_t interval,uint64_t duration,const char * offset)522*a93a1f58Sgm sdp_add_repeat(sdp_time_t *time, uint64_t interval, uint64_t duration,
523*a93a1f58Sgm const char *offset)
524*a93a1f58Sgm {
525*a93a1f58Sgm sdp_repeat_t *tmp;
526*a93a1f58Sgm sdp_repeat_t *new_repeat;
527*a93a1f58Sgm int ret = 0;
528*a93a1f58Sgm
529*a93a1f58Sgm if (time == NULL || offset == NULL)
530*a93a1f58Sgm return (EINVAL);
531*a93a1f58Sgm new_repeat = calloc(1, sizeof (sdp_repeat_t));
532*a93a1f58Sgm if (new_repeat == NULL)
533*a93a1f58Sgm return (ENOMEM);
534*a93a1f58Sgm new_repeat->r_interval = interval;
535*a93a1f58Sgm new_repeat->r_duration = duration;
536*a93a1f58Sgm if ((ret = sdp_str_to_list(&new_repeat->r_offset, offset,
537*a93a1f58Sgm strlen(offset), B_FALSE)) != 0) {
538*a93a1f58Sgm goto err_ret;
539*a93a1f58Sgm }
540*a93a1f58Sgm tmp = time->t_repeat;
541*a93a1f58Sgm if (tmp == NULL) {
542*a93a1f58Sgm time->t_repeat = new_repeat;
543*a93a1f58Sgm } else {
544*a93a1f58Sgm while (tmp->r_next != NULL)
545*a93a1f58Sgm tmp = tmp->r_next;
546*a93a1f58Sgm tmp->r_next = new_repeat;
547*a93a1f58Sgm }
548*a93a1f58Sgm return (ret);
549*a93a1f58Sgm err_ret:
550*a93a1f58Sgm sdp_free_repeat(new_repeat);
551*a93a1f58Sgm return (ret);
552*a93a1f58Sgm }
553*a93a1f58Sgm
554*a93a1f58Sgm /*
555*a93a1f58Sgm * Adds time zone field to the session
556*a93a1f58Sgm * z=<adjustment time> <offset> <adjustment time> <offset> ....
557*a93a1f58Sgm */
558*a93a1f58Sgm int
sdp_add_zone(sdp_session_t * session,uint64_t time,const char * offset)559*a93a1f58Sgm sdp_add_zone(sdp_session_t *session, uint64_t time, const char *offset)
560*a93a1f58Sgm {
561*a93a1f58Sgm sdp_zone_t *new_zone;
562*a93a1f58Sgm sdp_zone_t *tmp;
563*a93a1f58Sgm int ret = 0;
564*a93a1f58Sgm
565*a93a1f58Sgm if (session == NULL || offset == NULL)
566*a93a1f58Sgm return (EINVAL);
567*a93a1f58Sgm new_zone = calloc(1, sizeof (sdp_zone_t));
568*a93a1f58Sgm if (new_zone == NULL)
569*a93a1f58Sgm return (ENOMEM);
570*a93a1f58Sgm new_zone->z_time = time;
571*a93a1f58Sgm if ((ret = commp_add_str(&new_zone->z_offset, offset,
572*a93a1f58Sgm strlen(offset))) != 0) {
573*a93a1f58Sgm free(new_zone);
574*a93a1f58Sgm return (ret);
575*a93a1f58Sgm }
576*a93a1f58Sgm tmp = session->s_zone;
577*a93a1f58Sgm if (tmp == NULL) {
578*a93a1f58Sgm session->s_zone = new_zone;
579*a93a1f58Sgm } else {
580*a93a1f58Sgm while (tmp->z_next != NULL) {
581*a93a1f58Sgm tmp = tmp->z_next;
582*a93a1f58Sgm }
583*a93a1f58Sgm tmp->z_next = new_zone;
584*a93a1f58Sgm }
585*a93a1f58Sgm return (ret);
586*a93a1f58Sgm }
587*a93a1f58Sgm
588*a93a1f58Sgm /*
589*a93a1f58Sgm * Adds key field to session or media section of SDP.
590*a93a1f58Sgm * k=<method>
591*a93a1f58Sgm * k=<method>:<encryption key>
592*a93a1f58Sgm */
593*a93a1f58Sgm int
sdp_add_key(sdp_key_t ** key,const char * method,const char * enckey)594*a93a1f58Sgm sdp_add_key(sdp_key_t **key, const char *method, const char *enckey)
595*a93a1f58Sgm {
596*a93a1f58Sgm int ret = 0;
597*a93a1f58Sgm
598*a93a1f58Sgm if (key == NULL || method == NULL)
599*a93a1f58Sgm return (EINVAL);
600*a93a1f58Sgm if (*key != NULL)
601*a93a1f58Sgm return (EPROTO);
602*a93a1f58Sgm *key = calloc(1, sizeof (sdp_key_t));
603*a93a1f58Sgm if (*key == NULL)
604*a93a1f58Sgm return (ENOMEM);
605*a93a1f58Sgm if ((ret = commp_add_str(&((*key)->k_method), method,
606*a93a1f58Sgm strlen(method))) != 0) {
607*a93a1f58Sgm goto err_ret;
608*a93a1f58Sgm }
609*a93a1f58Sgm if (enckey != NULL) {
610*a93a1f58Sgm if ((ret = commp_add_str(&((*key)->k_enckey), enckey,
611*a93a1f58Sgm strlen(enckey))) != 0) {
612*a93a1f58Sgm goto err_ret;
613*a93a1f58Sgm }
614*a93a1f58Sgm }
615*a93a1f58Sgm return (ret);
616*a93a1f58Sgm err_ret:
617*a93a1f58Sgm sdp_free_key(*key);
618*a93a1f58Sgm *key = NULL;
619*a93a1f58Sgm return (ret);
620*a93a1f58Sgm }
621*a93a1f58Sgm
622*a93a1f58Sgm /*
623*a93a1f58Sgm * Adds attribute field to session or media section of SDP.
624*a93a1f58Sgm * a=<attribute>
625*a93a1f58Sgm * a=<attribute>:<value>
626*a93a1f58Sgm */
627*a93a1f58Sgm int
sdp_add_attribute(sdp_attr_t ** attr,const char * name,const char * value)628*a93a1f58Sgm sdp_add_attribute(sdp_attr_t **attr, const char *name, const char *value)
629*a93a1f58Sgm {
630*a93a1f58Sgm sdp_attr_t *tmp;
631*a93a1f58Sgm sdp_attr_t *new_attr;
632*a93a1f58Sgm int ret = 0;
633*a93a1f58Sgm
634*a93a1f58Sgm if (attr == NULL || name == NULL)
635*a93a1f58Sgm return (EINVAL);
636*a93a1f58Sgm new_attr = calloc(1, sizeof (sdp_attr_t));
637*a93a1f58Sgm if (new_attr == NULL)
638*a93a1f58Sgm return (ENOMEM);
639*a93a1f58Sgm if ((ret = commp_add_str(&new_attr->a_name, name, strlen(name))) != 0)
640*a93a1f58Sgm goto err_ret;
641*a93a1f58Sgm if (value != NULL) {
642*a93a1f58Sgm if ((ret = commp_add_str(&new_attr->a_value, value,
643*a93a1f58Sgm strlen(value))) != 0) {
644*a93a1f58Sgm goto err_ret;
645*a93a1f58Sgm }
646*a93a1f58Sgm }
647*a93a1f58Sgm tmp = *attr;
648*a93a1f58Sgm if (tmp == NULL) {
649*a93a1f58Sgm *attr = new_attr;
650*a93a1f58Sgm } else {
651*a93a1f58Sgm while (tmp->a_next != NULL)
652*a93a1f58Sgm tmp = tmp->a_next;
653*a93a1f58Sgm tmp->a_next = new_attr;
654*a93a1f58Sgm }
655*a93a1f58Sgm return (ret);
656*a93a1f58Sgm err_ret:
657*a93a1f58Sgm sdp_free_attribute(new_attr);
658*a93a1f58Sgm return (ret);
659*a93a1f58Sgm }
660*a93a1f58Sgm
661*a93a1f58Sgm /*
662*a93a1f58Sgm * Adds media field to the session.
663*a93a1f58Sgm * m=<media> <port>[/portcount] <proto> <fmt> ...
664*a93a1f58Sgm */
665*a93a1f58Sgm int
sdp_add_media(sdp_session_t * session,const char * name,uint_t port,int portcount,const char * protocol,const char * fmt,sdp_media_t ** media)666*a93a1f58Sgm sdp_add_media(sdp_session_t *session, const char *name, uint_t port,
667*a93a1f58Sgm int portcount, const char *protocol, const char *fmt, sdp_media_t **media)
668*a93a1f58Sgm {
669*a93a1f58Sgm sdp_media_t *tmp;
670*a93a1f58Sgm sdp_media_t *new_media;
671*a93a1f58Sgm int ret = 0;
672*a93a1f58Sgm
673*a93a1f58Sgm if (media != NULL)
674*a93a1f58Sgm *media = NULL;
675*a93a1f58Sgm if (session == NULL || name == NULL || protocol == NULL ||
676*a93a1f58Sgm portcount <= 0 || fmt == NULL) {
677*a93a1f58Sgm return (EINVAL);
678*a93a1f58Sgm }
679*a93a1f58Sgm new_media = calloc(1, sizeof (sdp_media_t));
680*a93a1f58Sgm if (new_media == NULL) {
681*a93a1f58Sgm return (ENOMEM);
682*a93a1f58Sgm }
683*a93a1f58Sgm new_media->m_session = session;
684*a93a1f58Sgm new_media->m_port = port;
685*a93a1f58Sgm new_media->m_portcount = portcount;
686*a93a1f58Sgm if ((ret = commp_add_str(&new_media->m_name, name, strlen(name))) != 0)
687*a93a1f58Sgm goto err_ret;
688*a93a1f58Sgm if ((ret = commp_add_str(&new_media->m_proto, protocol,
689*a93a1f58Sgm strlen(protocol))) != 0) {
690*a93a1f58Sgm goto err_ret;
691*a93a1f58Sgm }
692*a93a1f58Sgm if ((ret = sdp_str_to_list(&new_media->m_format, fmt,
693*a93a1f58Sgm strlen(fmt), B_TRUE)) != 0) {
694*a93a1f58Sgm goto err_ret;
695*a93a1f58Sgm }
696*a93a1f58Sgm tmp = session->s_media;
697*a93a1f58Sgm if (tmp == NULL) {
698*a93a1f58Sgm session->s_media = new_media;
699*a93a1f58Sgm } else {
700*a93a1f58Sgm while (tmp->m_next != NULL)
701*a93a1f58Sgm tmp = tmp->m_next;
702*a93a1f58Sgm tmp->m_next = new_media;
703*a93a1f58Sgm }
704*a93a1f58Sgm if (media != NULL)
705*a93a1f58Sgm *media = new_media;
706*a93a1f58Sgm return (0);
707*a93a1f58Sgm err_ret:
708*a93a1f58Sgm sdp_free_media(new_media);
709*a93a1f58Sgm return (ret);
710*a93a1f58Sgm }
711*a93a1f58Sgm
712*a93a1f58Sgm /*
713*a93a1f58Sgm * This internal API is required by sdp_session_to_str(). It determines the
714*a93a1f58Sgm * length of buffer that is required to hold the session. Since the RFC does
715*a93a1f58Sgm * not limit the size of various sub-fields in the field. We need to scan
716*a93a1f58Sgm * through the structure to determine the length.
717*a93a1f58Sgm */
718*a93a1f58Sgm int
sdp_get_length(const sdp_session_t * session)719*a93a1f58Sgm sdp_get_length(const sdp_session_t *session)
720*a93a1f58Sgm {
721*a93a1f58Sgm int len = 0;
722*a93a1f58Sgm char buf[1];
723*a93a1f58Sgm sdp_list_t *list;
724*a93a1f58Sgm sdp_conn_t *conn;
725*a93a1f58Sgm sdp_bandwidth_t *bw;
726*a93a1f58Sgm sdp_zone_t *zone;
727*a93a1f58Sgm sdp_time_t *time;
728*a93a1f58Sgm sdp_repeat_t *repeat;
729*a93a1f58Sgm sdp_attr_t *attr;
730*a93a1f58Sgm sdp_media_t *media;
731*a93a1f58Sgm
732*a93a1f58Sgm len += FIELD_EQUALS_CRLF_LEN;
733*a93a1f58Sgm len += snprintf(buf, 1, "%d", session->s_version);
734*a93a1f58Sgm if (session->s_origin != NULL) {
735*a93a1f58Sgm len += FIELD_EQUALS_CRLF_LEN;
736*a93a1f58Sgm len += strlen(session->s_origin->o_username);
737*a93a1f58Sgm len += snprintf(buf, 1, "%llu", session->s_origin->o_id) + 1;
738*a93a1f58Sgm len += snprintf(buf, 1, "%llu", session->s_origin->o_version)
739*a93a1f58Sgm + 1;
740*a93a1f58Sgm len += strlen(session->s_origin->o_nettype) + 1;
741*a93a1f58Sgm len += strlen(session->s_origin->o_addrtype) + 1;
742*a93a1f58Sgm len += strlen(session->s_origin->o_address) + 1;
743*a93a1f58Sgm }
744*a93a1f58Sgm if (session->s_name != NULL)
745*a93a1f58Sgm len += strlen(session->s_name) + FIELD_EQUALS_CRLF_LEN;
746*a93a1f58Sgm if (session->s_info != NULL)
747*a93a1f58Sgm len += strlen(session->s_info) + FIELD_EQUALS_CRLF_LEN;
748*a93a1f58Sgm if (session->s_uri != NULL)
749*a93a1f58Sgm len += strlen(session->s_uri) + FIELD_EQUALS_CRLF_LEN;
750*a93a1f58Sgm list = session->s_email;
751*a93a1f58Sgm while (list != NULL) {
752*a93a1f58Sgm len += strlen((char *)list->value) + FIELD_EQUALS_CRLF_LEN;
753*a93a1f58Sgm list = list->next;
754*a93a1f58Sgm }
755*a93a1f58Sgm list = session->s_phone;
756*a93a1f58Sgm while (list != NULL) {
757*a93a1f58Sgm len += strlen((char *)list->value) + FIELD_EQUALS_CRLF_LEN;
758*a93a1f58Sgm list = list->next;
759*a93a1f58Sgm }
760*a93a1f58Sgm conn = session->s_conn;
761*a93a1f58Sgm SDP_LEN_CONNECTION(conn);
762*a93a1f58Sgm bw = session->s_bw;
763*a93a1f58Sgm SDP_LEN_BANDWIDTH(bw);
764*a93a1f58Sgm time = session->s_time;
765*a93a1f58Sgm while (time != NULL) {
766*a93a1f58Sgm len += FIELD_EQUALS_CRLF_LEN;
767*a93a1f58Sgm len += snprintf(buf, 1, "%llu", time->t_start);
768*a93a1f58Sgm len += snprintf(buf, 1, "%llu", time->t_stop) + 1;
769*a93a1f58Sgm repeat = time->t_repeat;
770*a93a1f58Sgm while (repeat != NULL) {
771*a93a1f58Sgm len += FIELD_EQUALS_CRLF_LEN;
772*a93a1f58Sgm len += snprintf(buf, 1, "%llu", repeat->r_interval);
773*a93a1f58Sgm len += snprintf(buf, 1, "%llu", repeat->r_duration) + 1;
774*a93a1f58Sgm list = repeat->r_offset;
775*a93a1f58Sgm while (list != NULL) {
776*a93a1f58Sgm len += snprintf(buf, 1, "%llu",
777*a93a1f58Sgm *(uint64_t *)list->value) + 1;
778*a93a1f58Sgm list = list->next;
779*a93a1f58Sgm }
780*a93a1f58Sgm repeat = repeat->r_next;
781*a93a1f58Sgm }
782*a93a1f58Sgm time = time->t_next;
783*a93a1f58Sgm }
784*a93a1f58Sgm if (session->s_zone != NULL)
785*a93a1f58Sgm len += FIELD_EQUALS_CRLF_LEN;
786*a93a1f58Sgm zone = session->s_zone;
787*a93a1f58Sgm while (zone != NULL) {
788*a93a1f58Sgm len += snprintf(buf, 1, "%llu", zone->z_time) + 1;
789*a93a1f58Sgm len += strlen(zone->z_offset) + 1;
790*a93a1f58Sgm zone = zone->z_next;
791*a93a1f58Sgm }
792*a93a1f58Sgm SDP_LEN_KEY(session->s_key);
793*a93a1f58Sgm attr = session->s_attr;
794*a93a1f58Sgm SDP_LEN_ATTRIBUTE(attr);
795*a93a1f58Sgm media = session->s_media;
796*a93a1f58Sgm while (media != NULL) {
797*a93a1f58Sgm len += FIELD_EQUALS_CRLF_LEN;
798*a93a1f58Sgm len += strlen(media->m_name);
799*a93a1f58Sgm len += snprintf(buf, 1, "%u", media->m_port) + 1;
800*a93a1f58Sgm len += snprintf(buf, 1, "%d", media->m_portcount) + 1;
801*a93a1f58Sgm len += strlen(media->m_proto) + 1;
802*a93a1f58Sgm list = media->m_format;
803*a93a1f58Sgm while (list != NULL) {
804*a93a1f58Sgm len += strlen((char *)list->value) + 1;
805*a93a1f58Sgm list = list->next;
806*a93a1f58Sgm }
807*a93a1f58Sgm if (media->m_info != NULL)
808*a93a1f58Sgm len += strlen(media->m_info) + FIELD_EQUALS_CRLF_LEN;
809*a93a1f58Sgm conn = media->m_conn;
810*a93a1f58Sgm SDP_LEN_CONNECTION(conn);
811*a93a1f58Sgm bw = media->m_bw;
812*a93a1f58Sgm SDP_LEN_BANDWIDTH(bw);
813*a93a1f58Sgm SDP_LEN_KEY(media->m_key);
814*a93a1f58Sgm attr = media->m_attr;
815*a93a1f58Sgm SDP_LEN_ATTRIBUTE(attr);
816*a93a1f58Sgm media = media->m_next;
817*a93a1f58Sgm }
818*a93a1f58Sgm return (len);
819*a93a1f58Sgm }
820*a93a1f58Sgm
821*a93a1f58Sgm /*
822*a93a1f58Sgm * Given a session structure it clones (deep copy) and returns the cloned copy
823*a93a1f58Sgm */
824*a93a1f58Sgm sdp_session_t *
sdp_clone_session(const sdp_session_t * session)825*a93a1f58Sgm sdp_clone_session(const sdp_session_t *session)
826*a93a1f58Sgm {
827*a93a1f58Sgm sdp_session_t *new_sess;
828*a93a1f58Sgm sdp_origin_t *origin;
829*a93a1f58Sgm sdp_list_t *list;
830*a93a1f58Sgm sdp_time_t *time;
831*a93a1f58Sgm sdp_time_t *new_time;
832*a93a1f58Sgm sdp_repeat_t *repeat;
833*a93a1f58Sgm sdp_media_t *media;
834*a93a1f58Sgm sdp_media_t *new_media;
835*a93a1f58Sgm sdp_conn_t *conn;
836*a93a1f58Sgm sdp_bandwidth_t *bw;
837*a93a1f58Sgm sdp_attr_t *attr;
838*a93a1f58Sgm sdp_zone_t *zone;
839*a93a1f58Sgm char *offset = NULL;
840*a93a1f58Sgm char *format = NULL;
841*a93a1f58Sgm
842*a93a1f58Sgm if (session == NULL)
843*a93a1f58Sgm return (NULL);
844*a93a1f58Sgm new_sess = calloc(1, sizeof (sdp_session_t));
845*a93a1f58Sgm if (new_sess == NULL)
846*a93a1f58Sgm return (NULL);
847*a93a1f58Sgm new_sess->sdp_session_version = session->sdp_session_version;
848*a93a1f58Sgm new_sess->s_version = session->s_version;
849*a93a1f58Sgm origin = session->s_origin;
850*a93a1f58Sgm if (origin != NULL && (sdp_add_origin(new_sess, origin->o_username,
851*a93a1f58Sgm origin->o_id, origin->o_version, origin->o_nettype, origin->
852*a93a1f58Sgm o_addrtype, origin->o_address) != 0)) {
853*a93a1f58Sgm goto err_ret;
854*a93a1f58Sgm }
855*a93a1f58Sgm if (session->s_name != NULL && sdp_add_name(new_sess, session->
856*a93a1f58Sgm s_name) != 0) {
857*a93a1f58Sgm goto err_ret;
858*a93a1f58Sgm }
859*a93a1f58Sgm if (session->s_info != NULL && sdp_add_information(&new_sess->
860*a93a1f58Sgm s_info, session->s_info) != 0) {
861*a93a1f58Sgm goto err_ret;
862*a93a1f58Sgm }
863*a93a1f58Sgm if (session->s_uri != NULL && sdp_add_uri(new_sess, session->
864*a93a1f58Sgm s_uri) != 0) {
865*a93a1f58Sgm goto err_ret;
866*a93a1f58Sgm }
867*a93a1f58Sgm list = session->s_email;
868*a93a1f58Sgm while (list != NULL) {
869*a93a1f58Sgm if (sdp_add_email(new_sess, (char *)list->value) != 0)
870*a93a1f58Sgm goto err_ret;
871*a93a1f58Sgm list = list->next;
872*a93a1f58Sgm }
873*a93a1f58Sgm list = session->s_phone;
874*a93a1f58Sgm while (list != NULL) {
875*a93a1f58Sgm if (sdp_add_phone(new_sess, (char *)list->value) != 0)
876*a93a1f58Sgm goto err_ret;
877*a93a1f58Sgm list = list->next;
878*a93a1f58Sgm }
879*a93a1f58Sgm conn = session->s_conn;
880*a93a1f58Sgm SDP_ADD_CONNECTION(new_sess->s_conn, conn);
881*a93a1f58Sgm bw = session->s_bw;
882*a93a1f58Sgm SDP_ADD_BANDWIDTH(new_sess->s_bw, bw);
883*a93a1f58Sgm time = session->s_time;
884*a93a1f58Sgm while (time != NULL) {
885*a93a1f58Sgm if (sdp_add_time(new_sess, time->t_start, time->t_stop,
886*a93a1f58Sgm &new_time) != 0) {
887*a93a1f58Sgm goto err_ret;
888*a93a1f58Sgm }
889*a93a1f58Sgm repeat = time->t_repeat;
890*a93a1f58Sgm while (repeat != NULL) {
891*a93a1f58Sgm if (sdp_list_to_str(repeat->r_offset, &offset,
892*a93a1f58Sgm B_FALSE) != 0) {
893*a93a1f58Sgm goto err_ret;
894*a93a1f58Sgm }
895*a93a1f58Sgm if (sdp_add_repeat(new_time, repeat->r_interval,
896*a93a1f58Sgm repeat->r_duration, offset) != 0) {
897*a93a1f58Sgm free(offset);
898*a93a1f58Sgm goto err_ret;
899*a93a1f58Sgm }
900*a93a1f58Sgm free(offset);
901*a93a1f58Sgm repeat = repeat->r_next;
902*a93a1f58Sgm }
903*a93a1f58Sgm time = time->t_next;
904*a93a1f58Sgm }
905*a93a1f58Sgm zone = session->s_zone;
906*a93a1f58Sgm while (zone != NULL) {
907*a93a1f58Sgm if (sdp_add_zone(new_sess, zone->z_time, zone->z_offset) != 0)
908*a93a1f58Sgm goto err_ret;
909*a93a1f58Sgm zone = zone->z_next;
910*a93a1f58Sgm }
911*a93a1f58Sgm SDP_ADD_KEY(new_sess->s_key, session->s_key);
912*a93a1f58Sgm attr = session->s_attr;
913*a93a1f58Sgm SDP_ADD_ATTRIBUTE(new_sess->s_attr, attr);
914*a93a1f58Sgm media = session->s_media;
915*a93a1f58Sgm while (media != NULL) {
916*a93a1f58Sgm if (sdp_list_to_str(media->m_format, &format, B_TRUE) != 0)
917*a93a1f58Sgm goto err_ret;
918*a93a1f58Sgm if (sdp_add_media(new_sess, media->m_name,
919*a93a1f58Sgm media->m_port, media->m_portcount, media->m_proto,
920*a93a1f58Sgm format, &new_media) != 0) {
921*a93a1f58Sgm free(format);
922*a93a1f58Sgm goto err_ret;
923*a93a1f58Sgm }
924*a93a1f58Sgm free(format);
925*a93a1f58Sgm if (media->m_info != NULL) {
926*a93a1f58Sgm if (sdp_add_information(&new_media->m_info,
927*a93a1f58Sgm media->m_info) != 0) {
928*a93a1f58Sgm goto err_ret;
929*a93a1f58Sgm }
930*a93a1f58Sgm }
931*a93a1f58Sgm conn = media->m_conn;
932*a93a1f58Sgm SDP_ADD_CONNECTION(new_media->m_conn, conn);
933*a93a1f58Sgm bw = media->m_bw;
934*a93a1f58Sgm SDP_ADD_BANDWIDTH(new_media->m_bw, bw);
935*a93a1f58Sgm SDP_ADD_KEY(new_media->m_key, media->m_key);
936*a93a1f58Sgm attr = media->m_attr;
937*a93a1f58Sgm SDP_ADD_ATTRIBUTE(new_media->m_attr, attr);
938*a93a1f58Sgm new_media->m_session = new_sess;
939*a93a1f58Sgm media = media->m_next;
940*a93a1f58Sgm }
941*a93a1f58Sgm return (new_sess);
942*a93a1f58Sgm err_ret:
943*a93a1f58Sgm sdp_free_session(new_sess);
944*a93a1f58Sgm return (NULL);
945*a93a1f58Sgm }
946*a93a1f58Sgm
947*a93a1f58Sgm /*
948*a93a1f58Sgm * should i check if individual members are NULL, if not snprintf
949*a93a1f58Sgm * will core dump.
950*a93a1f58Sgm */
951*a93a1f58Sgm /*
952*a93a1f58Sgm * Given a session structure, this API converts it into character
953*a93a1f58Sgm * buffer, which will be used as a payload later on.
954*a93a1f58Sgm */
955*a93a1f58Sgm char *
sdp_session_to_str(const sdp_session_t * session,int * error)956*a93a1f58Sgm sdp_session_to_str(const sdp_session_t *session, int *error)
957*a93a1f58Sgm {
958*a93a1f58Sgm char *ret = NULL;
959*a93a1f58Sgm char *buf = NULL;
960*a93a1f58Sgm int len = 0;
961*a93a1f58Sgm int s_len = 0;
962*a93a1f58Sgm int wrote = 0;
963*a93a1f58Sgm sdp_origin_t *origin;
964*a93a1f58Sgm sdp_list_t *list;
965*a93a1f58Sgm sdp_conn_t *conn;
966*a93a1f58Sgm sdp_attr_t *attr;
967*a93a1f58Sgm sdp_bandwidth_t *bw;
968*a93a1f58Sgm sdp_time_t *time;
969*a93a1f58Sgm sdp_repeat_t *repeat;
970*a93a1f58Sgm sdp_zone_t *zone;
971*a93a1f58Sgm sdp_media_t *media;
972*a93a1f58Sgm
973*a93a1f58Sgm if (error != NULL)
974*a93a1f58Sgm *error = 0;
975*a93a1f58Sgm if (session == NULL) {
976*a93a1f58Sgm if (error != NULL)
977*a93a1f58Sgm *error = EINVAL;
978*a93a1f58Sgm return (NULL);
979*a93a1f58Sgm }
980*a93a1f58Sgm s_len = sdp_get_length(session);
981*a93a1f58Sgm ret = malloc(s_len + 1);
982*a93a1f58Sgm if (ret == NULL) {
983*a93a1f58Sgm if (error != NULL)
984*a93a1f58Sgm *error = ENOMEM;
985*a93a1f58Sgm return (NULL);
986*a93a1f58Sgm }
987*a93a1f58Sgm buf = ret;
988*a93a1f58Sgm len = s_len + 1;
989*a93a1f58Sgm wrote = snprintf(buf, len, "v=%d%s", session->s_version, COMMP_CRLF);
990*a93a1f58Sgm len = len - wrote;
991*a93a1f58Sgm buf = buf + wrote;
992*a93a1f58Sgm origin = session->s_origin;
993*a93a1f58Sgm if (origin != NULL) {
994*a93a1f58Sgm wrote = snprintf(buf, len, "o=%s %llu %llu %s %s %s%s",
995*a93a1f58Sgm origin->o_username, origin->o_id, origin->o_version,
996*a93a1f58Sgm origin->o_nettype, origin->o_addrtype, origin->o_address,
997*a93a1f58Sgm COMMP_CRLF);
998*a93a1f58Sgm len = len - wrote;
999*a93a1f58Sgm buf = buf + wrote;
1000*a93a1f58Sgm }
1001*a93a1f58Sgm if (session->s_name != NULL) {
1002*a93a1f58Sgm wrote = snprintf(buf, len, "s=%s%s", session->s_name,
1003*a93a1f58Sgm COMMP_CRLF);
1004*a93a1f58Sgm len = len - wrote;
1005*a93a1f58Sgm buf = buf + wrote;
1006*a93a1f58Sgm }
1007*a93a1f58Sgm SDP_INFORMATION_TO_STR(session->s_info);
1008*a93a1f58Sgm if (session->s_uri != NULL) {
1009*a93a1f58Sgm wrote = snprintf(buf, len, "u=%s%s", session->s_uri,
1010*a93a1f58Sgm COMMP_CRLF);
1011*a93a1f58Sgm len = len - wrote;
1012*a93a1f58Sgm buf = buf + wrote;
1013*a93a1f58Sgm }
1014*a93a1f58Sgm list = session->s_email;
1015*a93a1f58Sgm while (list != NULL) {
1016*a93a1f58Sgm wrote = snprintf(buf, len, "e=%s%s", (char *)list->value,
1017*a93a1f58Sgm COMMP_CRLF);
1018*a93a1f58Sgm len = len - wrote;
1019*a93a1f58Sgm buf = buf + wrote;
1020*a93a1f58Sgm list = list->next;
1021*a93a1f58Sgm }
1022*a93a1f58Sgm list = session->s_phone;
1023*a93a1f58Sgm while (list != NULL) {
1024*a93a1f58Sgm wrote = snprintf(buf, len, "p=%s%s", (char *)list->value,
1025*a93a1f58Sgm COMMP_CRLF);
1026*a93a1f58Sgm len = len - wrote;
1027*a93a1f58Sgm buf = buf + wrote;
1028*a93a1f58Sgm list = list->next;
1029*a93a1f58Sgm }
1030*a93a1f58Sgm conn = session->s_conn;
1031*a93a1f58Sgm SDP_CONNECTION_TO_STR(conn);
1032*a93a1f58Sgm bw = session->s_bw;
1033*a93a1f58Sgm SDP_BANDWIDTH_TO_STR(bw);
1034*a93a1f58Sgm time = session->s_time;
1035*a93a1f58Sgm while (time != NULL) {
1036*a93a1f58Sgm wrote = snprintf(buf, len, "t=%llu %llu%s", time->t_start,
1037*a93a1f58Sgm time->t_stop, COMMP_CRLF);
1038*a93a1f58Sgm len = len - wrote;
1039*a93a1f58Sgm buf = buf + wrote;
1040*a93a1f58Sgm repeat = time->t_repeat;
1041*a93a1f58Sgm while (repeat != NULL) {
1042*a93a1f58Sgm wrote = snprintf(buf, len, "r=%llu %llu", repeat->
1043*a93a1f58Sgm r_interval, repeat->r_duration);
1044*a93a1f58Sgm len = len - wrote;
1045*a93a1f58Sgm buf = buf + wrote;
1046*a93a1f58Sgm list = repeat->r_offset;
1047*a93a1f58Sgm while (list != NULL) {
1048*a93a1f58Sgm wrote = snprintf(buf, len, " %llu",
1049*a93a1f58Sgm *(uint64_t *)list->value);
1050*a93a1f58Sgm len = len - wrote;
1051*a93a1f58Sgm buf = buf + wrote;
1052*a93a1f58Sgm list = list->next;
1053*a93a1f58Sgm }
1054*a93a1f58Sgm wrote = snprintf(buf, len, "%s", COMMP_CRLF);
1055*a93a1f58Sgm len = len - wrote;
1056*a93a1f58Sgm buf = buf + wrote;
1057*a93a1f58Sgm repeat = repeat->r_next;
1058*a93a1f58Sgm }
1059*a93a1f58Sgm time = time->t_next;
1060*a93a1f58Sgm }
1061*a93a1f58Sgm zone = session->s_zone;
1062*a93a1f58Sgm if (zone != NULL) {
1063*a93a1f58Sgm wrote = snprintf(buf, len, "z=%llu %s", zone->z_time,
1064*a93a1f58Sgm zone->z_offset);
1065*a93a1f58Sgm len = len - wrote;
1066*a93a1f58Sgm buf = buf + wrote;
1067*a93a1f58Sgm zone = zone->z_next;
1068*a93a1f58Sgm while (zone != NULL) {
1069*a93a1f58Sgm wrote = snprintf(buf, len, " %llu %s", zone->z_time,
1070*a93a1f58Sgm zone->z_offset);
1071*a93a1f58Sgm len = len - wrote;
1072*a93a1f58Sgm buf = buf + wrote;
1073*a93a1f58Sgm zone = zone->z_next;
1074*a93a1f58Sgm }
1075*a93a1f58Sgm wrote = snprintf(buf, len, "%s", COMMP_CRLF);
1076*a93a1f58Sgm len = len - wrote;
1077*a93a1f58Sgm buf = buf + wrote;
1078*a93a1f58Sgm }
1079*a93a1f58Sgm SDP_KEY_TO_STR(session->s_key);
1080*a93a1f58Sgm attr = session->s_attr;
1081*a93a1f58Sgm SDP_ATTR_TO_STR(attr);
1082*a93a1f58Sgm media = session->s_media;
1083*a93a1f58Sgm while (media != NULL) {
1084*a93a1f58Sgm if (media->m_portcount == 1) {
1085*a93a1f58Sgm wrote = snprintf(buf, len, "m=%s %d %s", media->m_name,
1086*a93a1f58Sgm media->m_port, media->m_proto);
1087*a93a1f58Sgm } else {
1088*a93a1f58Sgm wrote = snprintf(buf, len, "m=%s %d/%d %s", media->
1089*a93a1f58Sgm m_name, media->m_port, media->m_portcount, media->
1090*a93a1f58Sgm m_proto);
1091*a93a1f58Sgm }
1092*a93a1f58Sgm len = len - wrote;
1093*a93a1f58Sgm buf = buf + wrote;
1094*a93a1f58Sgm list = media->m_format;
1095*a93a1f58Sgm while (list != NULL) {
1096*a93a1f58Sgm wrote = snprintf(buf, len, " %s", (char *)list->value);
1097*a93a1f58Sgm len = len - wrote;
1098*a93a1f58Sgm buf = buf + wrote;
1099*a93a1f58Sgm list = list->next;
1100*a93a1f58Sgm }
1101*a93a1f58Sgm wrote = snprintf(buf, len, "%s", COMMP_CRLF);
1102*a93a1f58Sgm len = len - wrote;
1103*a93a1f58Sgm buf = buf + wrote;
1104*a93a1f58Sgm SDP_INFORMATION_TO_STR(media->m_info);
1105*a93a1f58Sgm conn = media->m_conn;
1106*a93a1f58Sgm SDP_CONNECTION_TO_STR(conn);
1107*a93a1f58Sgm bw = media->m_bw;
1108*a93a1f58Sgm SDP_BANDWIDTH_TO_STR(bw);
1109*a93a1f58Sgm SDP_KEY_TO_STR(media->m_key);
1110*a93a1f58Sgm attr = media->m_attr;
1111*a93a1f58Sgm SDP_ATTR_TO_STR(attr);
1112*a93a1f58Sgm media = media->m_next;
1113*a93a1f58Sgm }
1114*a93a1f58Sgm assert(len >= 1);
1115*a93a1f58Sgm *buf = '\0';
1116*a93a1f58Sgm return (ret);
1117*a93a1f58Sgm }
1118*a93a1f58Sgm
1119*a93a1f58Sgm /*
1120*a93a1f58Sgm * Given a session structure and the field ('v', 'o', 's', et al), this API
1121*a93a1f58Sgm * deletes the corresponding structure element. It frees the memory and sets the
1122*a93a1f58Sgm * pointer to NULL
1123*a93a1f58Sgm */
1124*a93a1f58Sgm int
sdp_delete_all_field(sdp_session_t * session,const char field)1125*a93a1f58Sgm sdp_delete_all_field(sdp_session_t *session, const char field)
1126*a93a1f58Sgm {
1127*a93a1f58Sgm if (session == NULL)
1128*a93a1f58Sgm return (EINVAL);
1129*a93a1f58Sgm switch (field) {
1130*a93a1f58Sgm case SDP_ORIGIN_FIELD:
1131*a93a1f58Sgm sdp_free_origin(session->s_origin);
1132*a93a1f58Sgm session->s_origin = NULL;
1133*a93a1f58Sgm break;
1134*a93a1f58Sgm case SDP_NAME_FIELD:
1135*a93a1f58Sgm free(session->s_name);
1136*a93a1f58Sgm session->s_name = NULL;
1137*a93a1f58Sgm break;
1138*a93a1f58Sgm case SDP_INFO_FIELD:
1139*a93a1f58Sgm free(session->s_info);
1140*a93a1f58Sgm session->s_info = NULL;
1141*a93a1f58Sgm break;
1142*a93a1f58Sgm case SDP_URI_FIELD:
1143*a93a1f58Sgm free(session->s_uri);
1144*a93a1f58Sgm session->s_uri = NULL;
1145*a93a1f58Sgm break;
1146*a93a1f58Sgm case SDP_EMAIL_FIELD:
1147*a93a1f58Sgm sdp_free_list(session->s_email);
1148*a93a1f58Sgm session->s_email = NULL;
1149*a93a1f58Sgm break;
1150*a93a1f58Sgm case SDP_PHONE_FIELD:
1151*a93a1f58Sgm sdp_free_list(session->s_phone);
1152*a93a1f58Sgm session->s_phone = NULL;
1153*a93a1f58Sgm break;
1154*a93a1f58Sgm case SDP_CONNECTION_FIELD:
1155*a93a1f58Sgm sdp_free_connection(session->s_conn);
1156*a93a1f58Sgm session->s_conn = NULL;
1157*a93a1f58Sgm break;
1158*a93a1f58Sgm case SDP_BANDWIDTH_FIELD:
1159*a93a1f58Sgm sdp_free_bandwidth(session->s_bw);
1160*a93a1f58Sgm session->s_bw = NULL;
1161*a93a1f58Sgm break;
1162*a93a1f58Sgm case SDP_TIME_FIELD:
1163*a93a1f58Sgm sdp_free_time(session->s_time);
1164*a93a1f58Sgm session->s_time = NULL;
1165*a93a1f58Sgm break;
1166*a93a1f58Sgm case SDP_ZONE_FIELD:
1167*a93a1f58Sgm sdp_free_zone(session->s_zone);
1168*a93a1f58Sgm session->s_zone = NULL;
1169*a93a1f58Sgm break;
1170*a93a1f58Sgm case SDP_KEY_FIELD:
1171*a93a1f58Sgm sdp_free_key(session->s_key);
1172*a93a1f58Sgm session->s_key = NULL;
1173*a93a1f58Sgm break;
1174*a93a1f58Sgm case SDP_ATTRIBUTE_FIELD:
1175*a93a1f58Sgm sdp_free_attribute(session->s_attr);
1176*a93a1f58Sgm session->s_attr = NULL;
1177*a93a1f58Sgm break;
1178*a93a1f58Sgm case SDP_MEDIA_FIELD:
1179*a93a1f58Sgm sdp_free_media(session->s_media);
1180*a93a1f58Sgm session->s_media = NULL;
1181*a93a1f58Sgm break;
1182*a93a1f58Sgm default:
1183*a93a1f58Sgm return (EINVAL);
1184*a93a1f58Sgm }
1185*a93a1f58Sgm return (0);
1186*a93a1f58Sgm }
1187*a93a1f58Sgm
1188*a93a1f58Sgm /*
1189*a93a1f58Sgm * Given a media structure and the field ('i', 'b', 'c', et al), this API
1190*a93a1f58Sgm * deletes the corresponding structure element. It frees the memory and sets
1191*a93a1f58Sgm * the pointer to NULL.
1192*a93a1f58Sgm */
1193*a93a1f58Sgm int
sdp_delete_all_media_field(sdp_media_t * media,const char field)1194*a93a1f58Sgm sdp_delete_all_media_field(sdp_media_t *media, const char field)
1195*a93a1f58Sgm {
1196*a93a1f58Sgm if (media == NULL)
1197*a93a1f58Sgm return (EINVAL);
1198*a93a1f58Sgm switch (field) {
1199*a93a1f58Sgm case SDP_INFO_FIELD:
1200*a93a1f58Sgm free(media->m_info);
1201*a93a1f58Sgm media->m_info = NULL;
1202*a93a1f58Sgm break;
1203*a93a1f58Sgm case SDP_CONNECTION_FIELD:
1204*a93a1f58Sgm sdp_free_connection(media->m_conn);
1205*a93a1f58Sgm media->m_conn = NULL;
1206*a93a1f58Sgm break;
1207*a93a1f58Sgm case SDP_BANDWIDTH_FIELD:
1208*a93a1f58Sgm sdp_free_bandwidth(media->m_bw);
1209*a93a1f58Sgm media->m_bw = NULL;
1210*a93a1f58Sgm break;
1211*a93a1f58Sgm case SDP_KEY_FIELD:
1212*a93a1f58Sgm sdp_free_key(media->m_key);
1213*a93a1f58Sgm media->m_key = NULL;
1214*a93a1f58Sgm break;
1215*a93a1f58Sgm case SDP_ATTRIBUTE_FIELD:
1216*a93a1f58Sgm sdp_free_attribute(media->m_attr);
1217*a93a1f58Sgm media->m_attr = NULL;
1218*a93a1f58Sgm break;
1219*a93a1f58Sgm default:
1220*a93a1f58Sgm return (EINVAL);
1221*a93a1f58Sgm }
1222*a93a1f58Sgm return (0);
1223*a93a1f58Sgm }
1224*a93a1f58Sgm
1225*a93a1f58Sgm /*
1226*a93a1f58Sgm * Given a media list and the media, this API deletes that media from the
1227*a93a1f58Sgm * list. It frees the memory corresponding to that media.
1228*a93a1f58Sgm */
1229*a93a1f58Sgm int
sdp_delete_media(sdp_media_t ** l_media,sdp_media_t * media)1230*a93a1f58Sgm sdp_delete_media(sdp_media_t **l_media, sdp_media_t *media)
1231*a93a1f58Sgm {
1232*a93a1f58Sgm sdp_media_t *cur;
1233*a93a1f58Sgm sdp_media_t *prev;
1234*a93a1f58Sgm
1235*a93a1f58Sgm if (l_media == NULL || *l_media == NULL || media == NULL)
1236*a93a1f58Sgm return (EINVAL);
1237*a93a1f58Sgm cur = *l_media;
1238*a93a1f58Sgm prev = NULL;
1239*a93a1f58Sgm while (cur != NULL && cur != media) {
1240*a93a1f58Sgm prev = cur;
1241*a93a1f58Sgm cur = cur->m_next;
1242*a93a1f58Sgm }
1243*a93a1f58Sgm if (cur == NULL)
1244*a93a1f58Sgm return (EINVAL);
1245*a93a1f58Sgm if (cur == *l_media)
1246*a93a1f58Sgm *l_media = cur->m_next;
1247*a93a1f58Sgm else
1248*a93a1f58Sgm prev->m_next = cur->m_next;
1249*a93a1f58Sgm cur->m_next = NULL;
1250*a93a1f58Sgm sdp_free_media(cur);
1251*a93a1f58Sgm return (0);
1252*a93a1f58Sgm }
1253*a93a1f58Sgm
1254*a93a1f58Sgm /*
1255*a93a1f58Sgm * Given an attribute list and an attribute, this API deletes that attribue
1256*a93a1f58Sgm * from the list. It frees the memory corresponding to that attribute.
1257*a93a1f58Sgm */
1258*a93a1f58Sgm int
sdp_delete_attribute(sdp_attr_t ** l_attr,sdp_attr_t * attr)1259*a93a1f58Sgm sdp_delete_attribute(sdp_attr_t **l_attr, sdp_attr_t *attr)
1260*a93a1f58Sgm {
1261*a93a1f58Sgm sdp_attr_t *cur;
1262*a93a1f58Sgm sdp_attr_t *prev;
1263*a93a1f58Sgm
1264*a93a1f58Sgm if (l_attr == NULL || *l_attr == NULL || attr == NULL)
1265*a93a1f58Sgm return (EINVAL);
1266*a93a1f58Sgm cur = *l_attr;
1267*a93a1f58Sgm prev = NULL;
1268*a93a1f58Sgm while (cur != NULL && cur != attr) {
1269*a93a1f58Sgm prev = cur;
1270*a93a1f58Sgm cur = cur->a_next;
1271*a93a1f58Sgm }
1272*a93a1f58Sgm if (cur == NULL)
1273*a93a1f58Sgm return (EINVAL);
1274*a93a1f58Sgm if (cur == *l_attr)
1275*a93a1f58Sgm *l_attr = cur->a_next;
1276*a93a1f58Sgm else
1277*a93a1f58Sgm prev->a_next = cur->a_next;
1278*a93a1f58Sgm cur->a_next = NULL;
1279*a93a1f58Sgm sdp_free_attribute(cur);
1280*a93a1f58Sgm return (0);
1281*a93a1f58Sgm }
1282*a93a1f58Sgm
1283*a93a1f58Sgm /*
1284*a93a1f58Sgm * Allocates a new sdp session structure and assigns a version number to it.
1285*a93a1f58Sgm * Currently one version is defined and it is 1. This will be useful in future
1286*a93a1f58Sgm * in the unlikely need to change the structure.
1287*a93a1f58Sgm */
1288*a93a1f58Sgm sdp_session_t *
sdp_new_session()1289*a93a1f58Sgm sdp_new_session()
1290*a93a1f58Sgm {
1291*a93a1f58Sgm sdp_session_t *session = NULL;
1292*a93a1f58Sgm
1293*a93a1f58Sgm session = calloc(1, sizeof (sdp_session_t));
1294*a93a1f58Sgm if (session != NULL)
1295*a93a1f58Sgm session->sdp_session_version = SDP_SESSION_VERSION_1;
1296*a93a1f58Sgm return (session);
1297*a93a1f58Sgm }
1298