Pass connectInfo only if ro.vendor.redirect_socket_calls is set

There is a dependency between libnetd_client and netd. The netd checks
size of each FwmarkCommand. The earlier built netd does not expect that
ON_CONNECT command from libnetd_client includes connectInfo. It causes
connect() fail in the combination of new libnetd_client + old netd. With
this commit, the ON_CONNECT pass connectInfo only if OEM sets the
property ro.vendor.redirect_socket_calls. It's OEM responsibility to
ensure that the property is set only on the platform with netd that can
support connectInfo in ON_CONNECT command.

Minor changes:
1. Remove length protection on property retrieval. The
   __system_property_get() has built-in length protection. No need to
   append Null character.
2. refactor some code by macro.

Bug: 141611769
Bug: 150126287
Test: atest
Test: ./art/tools/run-libcore-tests.sh w/ current and earlier netd, pass
Test: ./art/tools/run-libjdwp-tests.sh w/ current and earlier netd, pass
Change-Id: I90ecba761effa0a5bc403876b9c3de8e77038232

0 files changed, 0 insertions, 0 deletions