Hi,

  How do I eliminate Content-Length:0 from sip reply when using sl_send_reply?

  I wanted to generate 200 ok, with SDP payload. I appended headers like below. The packet seems ok except there is extra “Content-Length:0”, which is causing problems. Any workarounds?

 

   The packet being generated is: Note the extra content-length: 0 at the end.

SIP/2.0 200 OK

Via: SIP/2.0/UDP 10.0.0.12:59404;rport=59404;branch=z9hG4bKPjb7d0391f8f7f479b812f6e5feadfa3c5;received=10.11.200.46

From: "cust1" <sip:cust1@devtranslation.sms-test.cyracom.com>;tag=afcffa277e2a43dc88fafc612f538864

To: <sip:spanish@devtranslation.sms-test.cyracom.com>;tag=37b119f34ca40c158c5b7306e1aa8d72.b73a

Call-ID: 7f73e5d03e15425395fac930eae423bd

CSeq: 31419 INVITE

Content-Type: application/sdp

Content-Length: 350

 

v=0

o=- 3688213899 3688213900 IN IP4 10.99.52.17

s=Blink 1.4.2 (Windows)

t=0 0

m=message 2855 TCP/MSRP *

c=IN IP4 10.99.52.17

a=path:msrps://10.99.52.17:2855/116701522521345;tcp

a=accept-types:message/cpim text/* image/* application/im-iscomposing+xml

a=accept-wrapped-types:text/* image/* application/im-iscomposing+xml

a=setup:active

Content-Length: 0

 

Code in config is:

        append_to_reply("Content-Type: application/sdp\r\n");
        append_to_reply("Content-Length:   350\r\n");
        append_to_reply("\r\n");
        append_to_reply("v=0\r\n");
        append_to_reply("o=- 3688213899 3688213900 IN IP4 MY_IP_ADDR\r\n");
        append_to_reply("s=Blink 1.4.2 (Windows)\r\n");
        append_to_reply("t=0 0\r\n");
        append_to_reply("m=message 2855 TCP/MSRP *\r\n");
        append_to_reply("c=IN IP4 MY_IP_ADDR\r\n");
        append_to_reply("a=path:msrps://MY_IP_ADDR:2855/$var(ssessid);tcp\r\n");
        append_to_reply("a=accept-types:message/cpim text/* image/* application/im-iscomposing+xml\r\n");
        append_to_reply("a=accept-wrapped-types:text/* image/* application/im-iscomposing+xml\r\n");
        append_to_reply("a=setup:active\r\n");

        sl_send_reply("200", "OK");

 

Thanks,

Pranathi Venkatayogi

System Developer II

(520) 745-9447 x4466

www.cyracom.com

 

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