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If pedantic mode enabled, look for media-level addresses 

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@4688 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer 2005-01-05 23:43:34 +00:00
parent 6097648bf0
commit 2cd8a11bf2
1 changed files with 33 additions and 2 deletions
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35
channels/chan_sip.c
View File

@ -2629,6 +2629,7 @@ static int process_sdp(struct sip_pvt *p, struct sip_request *req)
struct hostent *hp;
struct ast_hostent ahp;
int codec;
int destiterator = 0;
int iterator;
int sendonly = 0;
int x,y;
@ -2643,7 +2644,8 @@ static int process_sdp(struct sip_pvt *p, struct sip_request *req)
return -1;
}
m = get_sdp(req, "m");
c = get_sdp(req, "c");
sdpLineNum_iterator_init(&destiterator);
c = get_sdp_iterate(&destiterator, req, "c");
if (ast_strlen_zero(m) || ast_strlen_zero(c)) {
ast_log(LOG_WARNING, "Insufficient information for SDP (m = '%s', c = '%s')\n", m, c);
return -1;
@ -2702,7 +2704,21 @@ static int process_sdp(struct sip_pvt *p, struct sip_request *req)
}
}
}
/* Check for Media-description-level-address for audio */
if (pedanticsipchecking) {
c = get_sdp_iterate(&destiterator, req, "c");
if (!ast_strlen_zero(c)) {
if (sscanf(c, "IN IP4 %256s", host) != 1) {
ast_log(LOG_WARNING, "Invalid secondary host in c= line, '%s'\n", c);
} else {
/* XXX This could block for a long time, and block the main thread! XXX */
hp = ast_gethostbyname(host, &ahp);
if (!hp) {
ast_log(LOG_WARNING, "Unable to lookup host in secondary c= line, '%s'\n", c);
}
}
}
}
/* RTP addresses and ports for audio and video */
sin.sin_family = AF_INET;
memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr));
@ -2716,6 +2732,21 @@ static int process_sdp(struct sip_pvt *p, struct sip_request *req)
ast_log(LOG_DEBUG,"Peer audio RTP is at port %s:%d\n",ast_inet_ntoa(iabuf, sizeof(iabuf), sin.sin_addr), ntohs(sin.sin_port));
}
}
/* Check for Media-description-level-address for video */
if (pedanticsipchecking) {
c = get_sdp_iterate(&destiterator, req, "c");
if (!ast_strlen_zero(c)) {
if (sscanf(c, "IN IP4 %256s", host) != 1) {
ast_log(LOG_WARNING, "Invalid secondary host in c= line, '%s'\n", c);
} else {
/* XXX This could block for a long time, and block the main thread! XXX */
hp = ast_gethostbyname(host, &ahp);
if (!hp) {
ast_log(LOG_WARNING, "Unable to lookup host in secondary c= line, '%s'\n", c);
}
}
}
}
/* Setup video port number */
sin.sin_port = htons(vportno);
if (p->vrtp && sin.sin_port) {