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@ -5546,6 +5546,7 @@ static int reqprep(struct sip_request *req, struct sip_pvt *p, int sipmethod, in
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const char *c;
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const char *ot, *of;
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int is_strict = FALSE; /*!< Strict routing flag */
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int is_outbound = ast_test_flag(&p->flags[0], SIP_OUTGOING); /* Session direction */
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memset(req, 0, sizeof(struct sip_request));
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@ -5567,6 +5568,14 @@ static int reqprep(struct sip_request *req, struct sip_pvt *p, int sipmethod, in
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if (sipdebug)
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ast_log(LOG_DEBUG, "Strict routing enforced for session %s\n", p->callid);
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}
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/* Let's try to figure out the direction of this transaction within the dialog */
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/* If we're sending an ACK, we DID send the INVITE - which means outbound.
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INVITE's are outbound transactions, always
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*/
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if (sipmethod == SIP_ACK || sipmethod == SIP_INVITE)
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is_outbound = TRUE;
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/* In other case's, let's follow the flow of the dialog */
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if (sipmethod == SIP_CANCEL)
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c = p->initreq.rlPart2; /* Use original URI */
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@ -5584,7 +5593,7 @@ static int reqprep(struct sip_request *req, struct sip_pvt *p, int sipmethod, in
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else {
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char *n;
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/* We have no URI, use To: or From: header as URI (depending on direction) */
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ast_copy_string(stripped, get_header(orig, (ast_test_flag(&p->flags[0], SIP_OUTGOING)) ? "To" : "From"),
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ast_copy_string(stripped, get_header(orig, is_outbound ? "To" : "From"),
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sizeof(stripped));
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n = get_in_brackets(stripped);
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c = strsep(&n, ";"); /* trim ; and beyond */
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@ -5607,16 +5616,16 @@ static int reqprep(struct sip_request *req, struct sip_pvt *p, int sipmethod, in
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if (!strcasestr(ot, "tag=") && sipmethod != SIP_CANCEL) {
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/* Add the proper tag if we don't have it already. If they have specified
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their tag, use it. Otherwise, use our own tag */
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if (ast_test_flag(&p->flags[0], SIP_OUTGOING) && !ast_strlen_zero(p->theirtag))
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if (is_outbound && !ast_strlen_zero(p->theirtag))
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snprintf(newto, sizeof(newto), "%s;tag=%s", ot, p->theirtag);
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else if (!ast_test_flag(&p->flags[0], SIP_OUTGOING))
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else if (!is_outbound)
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snprintf(newto, sizeof(newto), "%s;tag=%s", ot, p->tag);
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else
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snprintf(newto, sizeof(newto), "%s", ot);
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ot = newto;
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}
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if (ast_test_flag(&p->flags[0], SIP_OUTGOING)) {
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if (is_outbound) {
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add_header(req, "From", of);
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add_header(req, "To", ot);
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} else {
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