MINOR: global: define diagnostic mode of execution
Define MODE_DIAG which is used to run haproxy in diagnostic mode. This
mode is used to output extra warnings about possible configuration
blunder or sub-optimal usage. It can be activated with argument '-dD'.
A new output function ha_diag_warning is implemented reserved for
diagnostic output. It serves to standardize the format of diagnostic
messages.
A macro HA_DIAG_WARN_COND is also available to automatically check if
diagnostic mode is on before executing the diagnostic check.
diff --git a/doc/management.txt b/doc/management.txt
index c7eb7ff..4418328 100644
--- a/doc/management.txt
+++ b/doc/management.txt
@@ -199,6 +199,10 @@
in foreground and to show incoming and outgoing events. It must never be
used in an init script.
+ -dD : enable diagnostic mode. This mode will output extra warnings about
+ suspicious configuration statements. This will never prevent startup even in
+ "zero-warning" mode nor change the exit status code.
+
-dG : disable use of getaddrinfo() to resolve host names into addresses. It
can be used when suspecting that getaddrinfo() doesn't work as expected.
This option was made available because many bogus implementations of