GCC 7 has added capability to produce warnings, this fixes most of those
warnings. The specific warnings are disabled in a few places:
* app_voicemail.c: truncation of paths more than 4096 chars in many places.
* chan_mgcp.c: callid truncated to 80 chars.
* cdr.c: two userfields are combined to cdr copy, fix would break ABI.
* tcptls.c: ignore use of deprecated method SSLv3_client_method().
ASTERISK-27156 #close
Change-Id: I65f280e7d3cfad279d16f41823a4d6fddcbc4c88
This patch is mostly a reorganization of existing code with a few exceptions:
* Added doxygen comments to all of the extracted functions.
* Split reload_firmware(int unload) into iax_firmware_reload() and
iax_firmware_unload() for readability.
* Create iax_firmware_traverse() to support the 'iax2 show firmware' CLI
command.
* Renamed iax_check_version() to iax_firmware_get_version() and change its
arguments and return value so that it returns a success/failure value and sets
the selected version into an out parameter to avoid confusion with failure and
version 0.
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@380695 65c4cc65-6c06-0410-ace0-fbb531ad65f3