Added messages to discourage running Hercules as root.

- You should not run Hercules as root, period.
- If you understand all of the security implications, and still want to
  do so (and you don't want to be bothered by the warning messages),
  open core.c and uncomment the line:
  "//#define I_AM_AWARE_OF_THE_RISK_AND_STILL_WANT_TO_RUN_HERCULES_AS_ROOT"
- If you're running Hercules as root because your provider forces (or
  encourages) you to do so, it means they're really doing it wrong, so
  please complain to them and ask them for an alternative.
- More info on the topic:
  http://www.tldp.org/HOWTO/Security-HOWTO/local-security.html
  https://wiki.debian.org/sudo
  http://wiki.centos.org/TipsAndTricks/BecomingRoot
  http://fedoraproject.org/wiki/Configuring_Sudo
  https://help.ubuntu.com/community/RootSudo
  http://www.freebsdwiki.net/index.php/Root

Signed-off-by: Haru <haru@dotalux.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index d6f783505..7b7590813 100644
--- a/configure.ac
+++ b/configure.ac
@@ -37,6 +37,51 @@ m4_ifdef([AC_USE_SYSTEM_EXTENSIONS],
 	[AC_GNU_SOURCE]
 )
 
+# Root-check
+host_is="`uname`"
+case $host_os in
+CYGWIN*)
+	;;
+*)
+	if type id >/dev/null 2>&1; then
+		euid="`id -u`"
+		if test "$euid" == "0"; then
+			echo ""
+			echo "********************************************************************************"
+			echo '*                            W A R N I N G      /!\                            *'
+			echo "********************************************************************************"
+			echo "* It appears that you're planning to run Hercules with root privileges. That's *"
+			echo "* not necessary, nor recommended, and it may open your machine to unnecessary  *"
+			echo "* security risks.  You should never ever run software as root unless it        *"
+			echo "* requires the extra privileges (which Hercules does not.)                     *"
+			echo "*                                                                              *"
+			echo "* More info:                                                                   *"
+			echo "* http://www.tldp.org/HOWTO/Security-HOWTO/local-security.html                 *"
+			echo "* https://wiki.debian.org/sudo                                                 *"
+			echo "* http://wiki.centos.org/TipsAndTricks/BecomingRoot                            *"
+			echo "* http://fedoraproject.org/wiki/Configuring_Sudo                               *"
+			echo "* https://help.ubuntu.com/community/RootSudo                                   *"
+			echo "* http://www.freebsdwiki.net/index.php/Root                                    *"
+			echo "*                                                                              *"
+			echo "* If your service provider forces (or encourages) you to run server software   *"
+			echo "* as root, please complain to them. It is a very bad idea.                     *"
+			echo "********************************************************************************"
+			echo "Execution will be paused for 60 seconds... Press Ctrl-C now if you wish to stop."
+			for j in 1 2 3 4 5 6; do
+				for i in 1 2 3 4 5 6 7 8 9 10; do
+					printf "\a. "
+					sleep 1
+				done
+				echo ""
+			done
+			echo ""
+			echo "Resuming as root. If anything breaks, you'll get to keep the pieces."
+			sleep 2
+		fi
+	fi
+	;;
+esac
+
 #
 # Memory managers
 #