[asterisk-bugs] [JIRA] (ASTERISK-21765) Dialplan function FILE doesn't work as what it documented

[John Zhong (JIRA)]

John Zhong created ASTERISK-21765:
-------------------------------------

             Summary: Dialplan function FILE doesn't work as what it documented
                 Key: ASTERISK-21765
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21765
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Functions/func_dialplan
    Affects Versions: 11.3.0, 11.2.1
         Environment: AsteriskNow64 3.0.0
Asterisk 11.2.1 and Asterisk 11.3.0
            Reporter: John Zhong


AsteriskNow64 3.0.0 running under VMWare workstation.

There are two issues have been found while I am testing our HiTPM with AsteriskNow64 3.0.0 integration.

Reproduce steps:
  1) Install netcat
  2) Create two test files as:
     echo 0123456789 >/tmp/0123456789.txt
     base64 -w 0 /var/lib/asterisk/sounds/en/vm-login.ulaw > /tmp/vm-login.ulaw.b64
  3) Run: ifconfig;nc -l 4573
  4) Add a peer for SIP client into sip.conf
  5) Create an extension for an AGI(agi://[the_ip_address_of_nc_listen_on]) 
  6) Call the AGI extension
  7) If setup is correct, the nc windows should have AGI headers
  8) Send following commands by nc:

     GET VARIABLE FILE("/tmp/0123456789.txt,2,5")

     and 

     GET VARIABLE FILE("/tmp/vm-login.ulaw.b64,4080,5100")

  9) Verify the result:

     GET VARIABLE FILE("/tmp/0123456789.txt,2,5")
     200 result=1 (234)
    
     Base on previous version Asterisk and current document, it should
     return (23456), the first argument is offset and the second argument
     should be length, but it is the 1 before the end position now. OK, 
     let's treat it as what it is, go further to see another bug. If you
     count the result of FILE("/tmp/vm-login.ulaw.b64,4080,5100"), the
     length is 1023, not the expected 1020.

     GET VARIABLE FILE("/tmp/vm-login.ulaw.b64,4080,5100")
     200 result=1 (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)



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