The response from gmail calendar includes the string name
"caldav:calendar-data". res_calendar_caldav implements
the example included in RFC 4791: string "C:calendar-data".
When reading the calendar, res_calendar_caldav compare the
string and if does not match just discards the event.
This commit compares the response to both strings,
successfully loading gmail calendar events.
Writing to gmail calendar is working prior to this fix.

ASTERISK-26624
Reported by: Eduardo S. Libardi

Change-Id: Ia1eef10552ae616efb645d390f5ffe81260d7d4a

download_externals wasn't handling the "certified/13.x" version
correctly.

Change-Id: I124d195bb117ca36fd7bf1150c630f3b474a9d9a

The asterisk.h header file needs to be included first or else
some things go awry, such as:

implicit declaration of function 'vasprintf'

Change-Id: I981dc2a77a1ba791888e4f1726644d4656c0407c

When retrieving RTCP stats for PJSIP channels, RTT values are unreliable.
RTT calculation is correct, but the data representation isn't.  RTT is
represented by a 32-bit fixed-point number with the integer part in the
first 16 bits and the fractional part in the last 16 bits.  In order to
get the RTT value, the fractional part is miscalculated, there is an
unnecessary 16 bit shift that causes overflow.  Besides this there is
another mistake, when transforming the integer value to the fixed point
fractional part via bitwise operation, that loses precision.

* RTT fractional part is no longer shifted, avoiding overflow.

* RTT fractional part is transformed to its fixed-point value more
precisely.

* Fixed timeval2ntp() and ntp2timeval() second fraction conversions.

* Fixed NTP timestamp report logging.  The usec was inexplicably
multiplied by 4096.

ASTERISK-26566 #close
Reported by Hector Royo Concepcion

Change-Id: Ie09bdabfee75afb3f1b8ddfd963e5219ada3b96f

libasteriskpj was hard coded to use -lrt but librt is linux specific
so we now use the LIB_RT variable which gets set by configure.

Change-Id: I41148884517e3031f7675a413d524c86e8614694

Fix support of OS's like openBSD that use an older nameser.h,
this change reverts the defines to the older style which on other
systems is found in nameser_compat.h

Tested on openBSD 6.0, Debian 8

ASTERISK-26608 #close

Change-Id: Iffb36caab8c5aa9dece0ce2d009041f7b56cc86a

In order to not have version number overlap between different versions
of Asterisk, each new major version of Asterisk will mean we also bump
the ARI major version number.

This particular change does NOT introduce any known breaking changes to
ARI.

For discussion relating to this topice, see:
http://lists.digium.com/pipermail/asterisk-dev/2016-November/075964.html

Change-Id: I712ee0df177a8fe1252da2bc029705268b97b665

The download process now has a timeout which will cause wget to retry
if it stops retrieving data for 5 seconds and fetch and curl to timeout
if the whole retrieval take smore than 30 seconds.

If the tarball retrieval works, the MD5SUM file is retrieved from
the downloads site and the md5 checksum is verified.

If either the tarball retrieval or MD5SUM retrieval fails, or the
checksums don't match, the entire process is retried once.  If it
fails again, any incomplete tarball is deleted.

.DELETE_ON_ERROR: was also added to the Makefile.  Not only does
this delete the tarball on failure, it till also delete corrupted
library files from the pjproject source directory should they
fail to build correctly.

Tested all the way back to FreeBSD 9, CentOS 6, Debian 6 and
Ubuntu 14.

Change-Id: Iea7d33b96a31622ab1b6e54baebaf271959514e1

ASTERISK-26562 #close

Change-Id: Ie6cb0ffc2b8c775639ce7784fe96f4ea00cfa2f8

Based on bridge video AMI event changes, bump the minor version of AMI.

Change-Id: Idf84507354170400813cda780906c94c9f1b60b4

POSIX defines poll.h. sys/poll.h should not be used as it is c-library
internal header which may or may not exist. Notably in musl including
sys/poll.h generates warning of being incorrect.

Change-Id: Ib318c1c7142a737bcf3caa4d8d72560bebe39252

OpenBSD's 'find' doesn't take the -delete argument so you have to pipe
through 'xargs rm -rf'.

'echo -e' doesn't like \t starting a line. It just prints 't' which
causes the libasteriskpj.exports file to be garbage.  They were just
cosmetic so they were removed.

librt doesn't exist so the link of libasteriskpj.so fails. It's not
actually needed for linux anyway so -lrt was removed from the link.

res_rtp_asterisk was failing to load because of an undefined
DTLS_method. '|| defined(LIBRESSL_VERSION_NUMBER)' was added to the #if
so DTLSv1_method is used instead.

ASTERISK-26608

Change-Id: I926ec95b0b69633231e3ad1d6e803b977272c49c

res_format_attr_opus assumed that the string being passed into it was
empty. It tried to determine if the only thing it had written was

a=fmtp:<num>

And if it had, it would reset the string. Its calculation was off when
working with chan_sip, though. chan_sip passes the entire built SDP
rather than an empty string. This resulted in always putting an empty
fmtp line in the SDP.

ASTERISK-26520 #close
Reported by scgm11

Change-Id: Ib2e8712d26a47067e5f36d5973577added01dbb5

When Opus is negotiated but not loaded, the log is spammed with messages
because the system does not know how to calculate the number of samples in
a frame.

* Suppress the warning by supplying a function that assumes 20ms of
samples in the frame.  For pass through support it doesn't really seem to
matter what number of samples is returned anyway.

ASTERISK-26605 #close

Change-Id: Icf2273692f040dc2c45b01e72a790d11092f9e0f

Responding to authentication challenges leaks PJSIP memory pools.

The leak was introduced with a pjproject 2.5.5 API change.
https://trac.pjsip.org/repos/ticket/1929 changed the API usage of
pjsip_auth_clt_init() to require the new API pjsip_auth_clt_deinit() to
clean up cached authentication allocations that get allocated with
pjsip_auth_clt_reinit_req().

ASTERISK-26516 #close

Change-Id: I4473141b8c3961d0dc91c382beb3876b3efb45c8