Merge branch 'fix-autoconf-exitcode'

Various plugins still followed the old (before 2009?) convention of using
a non-zero exitcode for indicating "no". Most of these (obvious) occasions
should be fixed now.

plugins/accounting/accounting_

@@ -116,17 +116,15 @@ fi
 if [ "$1" == "autoconf" ]; then
 	if [ -r /proc/net/dev ]; then
 		$IPTABLES -L INPUT -v -n -x -w >/dev/null 2>/dev/null
-			if [ $? -gt 0 ]; then
-				echo "no (could not run iptables as user `whoami`)"
-				exit 1
-			else
-				echo yes
-			exit 0
+		if [ $? -gt 0 ]; then
+			echo "no (could not run iptables as user `whoami`)"
+		else
+			echo yes
 		fi
 	else
 		echo "no (/proc/net/dev not found)"
-		exit 1
 	fi
+	exit 0
 fi
 
 if [ "$1" = "suggest" ]; then

plugins/amavis/amavis-debian

@@ -37,11 +37,10 @@ mktempfile () {
 if [ "$1" = "autoconf" ]; then
         if [ -f "${AMAVIS_LOG}" -a -n "${LOGTAIL}" -a -x "${LOGTAIL}" -a -n "${BC}" -a -x "${BC}" ] ; then
 		echo yes
-		exit 0
 	else
 		echo no
-		exit 1
 	fi
+	exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/amavis/amavis_

@@ -45,11 +45,10 @@ my($db_home) =  # DB databases directory
 if ($ARGV[0] and $ARGV[0] eq "autoconf") {
 	if (-x "/usr/sbin/amavisd-agent") {
 		print "yes\n";
-		exit 0;
 	} else {
 		print "no (/usr/sbin/amavisd-agent not found or not executable)\n";
-		exit 1;
 	}
+	exit 0;
 } elsif ($ARGV[0] and $ARGV[0] eq "suggest") {
 	print "time\n";
 	print "cache\n";

plugins/amavis/amavis_awk

@@ -23,11 +23,10 @@ STATEFILE=$MUNIN_PLUGSTATE/amavis.offset
 if [ "$1" = "autoconf" ]; then
         if [ -f "${MAIL_LOG}" -a -n "${LOGTAIL}" -a -x "${LOGTAIL}" ] ; then
 		echo yes
-		exit 0
 	else
 		echo no
-		exit 1
 	fi
+	exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/amr/amr

@@ -54,14 +54,13 @@ sub autoconf
     if (-d $LOGDIR) {
 	if (-f $logfile) {
             print "yes\n";
-            exit 0;
 	} else {
 	    print "no (logfile not found)\n";
 	}
     } else {
 	print "no (could not find logdir)\n";
     }
-    exit 1;
+    exit 0;
 }
 
 sub config

plugins/amule/amule_queue

@@ -28,16 +28,15 @@
 
 if [ "$1" = "autoconf" ]; then
 	if [ -z "$(which amule)" ]; then
-		echo "$0: error: amule not installed"
-		exit 1
+		echo "no (amule not installed)"
 	else
 		if [ ! -e /tmp/amulesig.dat ]; then
-			echo "$0: error: amulesig.dat not found"
+			echo "no (amulesig.dat not found)"
 		else
 			echo yes
-			exit 0
 		fi
 	fi
+	exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/amule/amule_shares

@@ -28,16 +28,15 @@
 
 if [ "$1" = "autoconf" ]; then
 	if [ -z "$(which amule)" ]; then
-		echo "$0: error: amule not installed"
-		exit 1
+		echo "no (amule not installed)"
 	else
 		if [ ! -e /tmp/amulesig.dat ]; then
-			echo "$0: error: amulesig.dat not found"
+			echo "no (amulesig.dat not found)"
 		else
 			echo yes
-			exit 0
 		fi
 	fi
+	exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/amule/amule_transfers

@@ -28,16 +28,15 @@
 
 if [ "$1" = "autoconf" ]; then
 	if [ -z "$(which amule)" ]; then
-		echo "$0: error: amule not installed"
-		exit 1
+		echo "no (amule not installed)"
 	else
 		if [ ! -e /tmp/amulesig.dat ]; then
-			echo "$0: error: amulesig.dat not found"
+			echo "no (amulesig.dat not found)"
 		else
 			echo yes
-			exit 0
 		fi
 	fi
+	exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/amule/amule_uptime

@@ -28,16 +28,15 @@
 
 if [ "$1" = "autoconf" ]; then
 	if [ -z "$(which amule)" ]; then
-		echo "$0: error: amule not installed"
-		exit 1
+		echo "no (amule not installed)"
 	else
 		if [ ! -e /tmp/amulesig.dat ]; then
-			echo "$0: error: amulesig.dat not found"
+			echo "no (amulesig.dat not found)"
 		else
 			echo yes
-			exit 0
 		fi
 	fi
+	exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/apache/apache_activity

@@ -42,7 +42,7 @@ my %chars = (
 if (exists $ARGV[0] and $ARGV[0] eq "autoconf") {
     if ($ret) {
 	print "no ($ret)\n";
-	exit 1;
+	exit 0;
     }
     my $ua = LWP::UserAgent->new(timeout => 30);
     my @badports;
@@ -55,7 +55,7 @@ if (exists $ARGV[0] and $ARGV[0] eq "autoconf") {
 
     if (@badports) {
 	print "no (no apache server-status on ports @badports)\n";
-	exit 1;
+	exit 0;
     } else {
 	print "yes\n";
 	exit 0;

plugins/apache/apache_users

@@ -23,16 +23,13 @@ then
 	if ! ls $ACCESSLOG > /dev/null
 	then
 		echo "no (could not find apache access log \"$ACCESSLOG\")"
-		exit 1
 	elif ! ls $DIRECTORY > /dev/null
 	then
 		echo "no (could not find munin plugins directory \"$DIRECTORY\")"
-		exit 2
-
 	else
 		echo "yes"
-		exit 0
 	fi
+	exit 0
 fi
 
 # ######################################################################################### INIT

plugins/apache/apache_watch_

@@ -39,7 +39,7 @@ my $type = "throughput";
 if (exists $ARGV[0] and $ARGV[0] eq "autoconf") {
   if ($ret) {
     print "no ($ret)\n";
-    exit 1;
+    exit 0;
   }
   my $ua = LWP::UserAgent->new (timeout => 30);
   my @badports;
@@ -52,7 +52,7 @@ if (exists $ARGV[0] and $ARGV[0] eq "autoconf") {
 
   if (@badports) {
     print "no (no mod_watch exists on ports @badports)\n";
-    exit 1;
+    exit 0;
   } else {
     print "yes\n";
     exit 0;

plugins/arp/arp

@@ -15,10 +15,11 @@
 
 if [ "$1" = "autoconf" ]; then
     # Search for arp
-    which arp >/dev/null 2>/dev/null || (echo "no (can't find arp binary)" && exit 1)
-
-    # ...or success
-    echo yes
+    if which arp >/dev/null; then
+        echo yes
+    else
+        echo "no (missing 'arp' executable)"
+    fi
     exit 0
 fi
 

plugins/arp/arp_

@@ -19,13 +19,11 @@
 case "$1" in
 	autoconf)
 		# Search for ip
-		which ip >/dev/null 2>&1
-		if [ $? -ne 0 ]; then
-			echo "no (can't find ip binary)"
-			exit 1
+		if which ip >/dev/null; then
+			echo 'yes'
+		else
+			echo "no (missing 'ip' executable)"
 		fi
-		# ...or success
-		echo 'yes'
 		exit 0
 	;;
 	suggest)

plugins/asterisk/asterisk_inuse

@@ -11,15 +11,13 @@ if [ "$1" = "autoconf" ]; then
         asterisk -rx 'sip show inuse' > /dev/null
         if [ $? = "0" ]; then
                 echo yes
-                exit 0
         else
                     echo no
-                    exit 1
             fi
     else
         echo no
-        exit 1
     fi
+    exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/backuppc/backuppc

@@ -18,9 +18,12 @@ HOSTS=$(cd ${PCDIR} 2>/dev/null && ls -1)
 . $MUNIN_LIBDIR/plugins/plugin.sh
 
 if [ "$1" = "autoconf" ]; then
-	[ ! -z "${HOSTS}" ] && echo "yes" && exit 0
-	echo "no"
-	exit 1
+	if [ -n "$HOSTS" ]; then
+		echo "yes"
+	else
+		echo "no"
+	fi
+	exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/battery/acpi-battery

@@ -32,11 +32,10 @@
 if [ "$1" = "autoconf" ]; then
 	if grep -q 'present.*yes' /proc/acpi/battery/*/info > /dev/null 2>&1; then
 		echo yes
-		exit 0
 	else
 		echo "no (battery not detected)"
-		exit 1
 	fi
+	exit 0
 fi
 
 cd /proc/acpi/battery

plugins/bigbrother/b3error_

@@ -29,7 +29,6 @@ mktempfile () {
 if [ "$1" = "autoconf" ]; then
     if [ -n "${B3NAME}" -a -f "${logfile}" -a -n "${LOGTAIL}" -a -x "${LOGTAIL}" ]; then
         echo yes
-        exit 0
     else
         echo -n "no"
         if [ ! -n "${B3NAME}" ]; then
@@ -43,8 +42,8 @@ if [ "$1" = "autoconf" ]; then
         elif [ ! -x "${LOGTAIL}" ]; then
           echo " (cannot execute ${LOGTAIL})"
         fi
-        exit 1
     fi
+    exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/bind/bind95_

@@ -122,12 +122,12 @@ if ( defined($ARGV[0]) && $ARGV[0] eq "config" ) {
 
 if ( defined($ARGV[0]) && $ARGV[0] eq "autoconf" ) {
     if (! -f $stat_file) {
-        printf "Unable to file bind stat file on %s",$stat_file;
-        exit 1;
+        printf "no (Unable to file bind stat file on %s)",$stat_file;
+        exit 0;
     }
     if (! -f $rndc) {
-        printf "Unable to file rndc tool (configured : %s)",$rndc;
-        exit 1;
+        printf "no (Unable to file rndc tool (configured : %s))",$rndc;
+        exit 0;
     }
     exit 0;
 }

plugins/bind/bind_

@@ -98,11 +98,11 @@ if ( defined($ARGV[0]) && $ARGV[0] eq "config" ) {
 if ( defined($ARGV[0]) && $ARGV[0] eq "autoconf" ) {
     if (! -f $stat_file) {
         printf "Unable to file bind stat file on %s",$stat_file;
-        exit 1;
+        exit 0;
     }
     if (! -f $rndc) {
         printf "Unable to file rndc tool (configured : %s)",$rndc;
-        exit 1;
+        exit 0;
     }
     exit 0;
 }

plugins/bird/bird

@@ -111,11 +111,10 @@ sub get_stats {
 sub autoconf {
     if (-S $socket) {
         say 'yes';
-        exit 0;
     } else {
         say 'no';
-        exit 1;
     }
+    exit 0;
 }
 
 sub config {

plugins/boinc/boinc_processes

@@ -63,7 +63,7 @@ sub autoconf {
     }
   }
   print "no\n";
-  exit 1;
+  exit 0;
 }
 
 sub config {

plugins/condor/condor_activity_

@@ -52,7 +52,7 @@ fi
 
 if [ "$1" = "autoconf" ]; then
     echo "no"
-    exit 1
+    exit 0
 fi
 
 if [ "$1" = "suggest" ]; then

plugins/condor/condor_ops_

@@ -53,7 +53,7 @@ fi
 
 if [ "$1" = "autoconf" ]; then
     echo "no"
-    exit 1
+    exit 0
 fi
 
 if [ "$1" = "suggest" ]; then

plugins/condor/condor_queue_

@@ -55,7 +55,7 @@ fi
 
 if [ "$1" = "autoconf" ]; then
     echo "no"
-    exit 1
+    exit 0
 fi
 
 if [ "$1" = "suggest" ]; then

plugins/condor/condor_states_

@@ -52,7 +52,7 @@ fi
 
 if [ "$1" = "autoconf" ]; then
     echo "no"
-    exit 1
+    exit 0
 fi
 
 if [ "$1" = "suggest" ]; then

plugins/disk/du

@@ -58,11 +58,10 @@ ID=1;
 if [ "$1" = "autoconf" ]; then
 	if [ -d $DIR ]; then
 	    echo "yes"
-	    exit 0
 	else
 		echo "no (check your path)"
-		exit 1
 	fi
+	exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/disk/e2

@@ -57,11 +57,10 @@ lse2() {
 if [ "$1" = "autoconf" ]; then
 	if which dumpe2fs >/dev/null 2>&1; then
 		echo yes
-		exit 0
 	else
 		echo no
-		exit 1
 	fi
+	exit 0
 fi
 if [ "$1" = "suggest" ]; then
 	lse2 | while read name rest; do

plugins/disk/hpasmcli2_

@@ -60,7 +60,6 @@ if (defined($ARGV[0])) {
             my @chk_result = `$hpasmcli -s \"help\"`;
             if ($? eq "0") {
                 print "yes\n";
-                exit 0;
             } else {
                 my $reason = 'Unknown error';
                 foreach my $line (@chk_result) {
@@ -71,12 +70,11 @@ if (defined($ARGV[0])) {
                     }
                 }
                 print "no ($reason)\n";
-                exit 1;
             }
         } else {
             print "no (hpasmcli not found)\n";
-            exit 1;
         }
+        exit 0;
     } elsif ($ARGV[0] eq 'suggest') {
         print "temp\nfans\n";
         exit 0;

plugins/disk/linux_diskstat_

@@ -147,12 +147,11 @@ if ( defined $ARGV[0] && $ARGV[0] eq 'autoconf' ) {
     if ( !$@ && keys %stats ) {
 
         print "yes\n";
-        exit 0;
     }
     else {
         print "no\n";
-        exit 1;
     }
+    exit 0;
 }
 
 

plugins/disk/lvm_snap_used

@@ -26,10 +26,10 @@ lvdisplay=$(which lvdisplay)
 if [ "$1" = "autoconf" ]; then
     if test -n "${lvdisplay}"; then
         echo yes
-        exit 0
+    else
+        echo "no (lvdisplay not found)"
     fi
-    echo "no lvdisplay found"
-    exit 1
+    exit 0
 fi
 
 

plugins/disk/md_iostat_

@@ -96,10 +96,10 @@ $mdstat_present = -f '/proc/mdstat';
 if ( defined($ARGV[0]) and $ARGV[0] eq "autoconf") {
   if ($mdstat_present and ($detailed_present or $stat_present)) {
     print "yes\n";
-    exit 0;
+  } else {
+    print "no\n";
   }
-  print "no\n";
-  exit 1;
+  exit 0;
 }
 
 my %devs;

plugins/disk/megaraid-controller-information

@@ -126,11 +126,10 @@ my %config = (
 if ($ARGV[0] and $ARGV[0] eq "autoconf" ) {
    if (-e $Command ) {
       print "yes\n";
-      exit 0;
       } else {
       print "no\n";
-      exit 1
      }
+     exit 0;
 }
 
 #Read Output of MegaRaid command

plugins/disk/raid

@@ -13,11 +13,10 @@
 if ($ARGV[0] and $ARGV[0] eq "autoconf") {
     if (-r "/proc/mdstat" and `grep md /proc/mdstat`) {
         print "yes\n";
-        exit 0;
     } else {
-        print "no RAID devices\n";
-        exit 1;
+        print "no (no RAID devices found)\n";
     }
+    exit 0;
 }
 
 if ( $ARGV[0] and $ARGV[0] eq "config" ) {

plugins/disk/raid-mismatch-count

@@ -30,14 +30,12 @@ returnval=$?
 if [ "x$1" = "xautoconf" ]; then
 	if [ -z "$targets" ]; then
 		echo "no (no md devices found under /sys/devices/virtual/block/*/md/mismatch_cnt)"
-		exit 1;
 	elif [ "x$returnval" != "x0" ]; then
 		echo "no (discovery of md devices failed strangely)"
-		exit 1;
 	else
 		echo "yes"
-		exit 0
 	fi
+	exit 0
 fi
 
 if [ "x$1" = "xconfig" ]; then

plugins/disk/xfs

@@ -20,13 +20,12 @@ if ($ARGV[0] and $ARGV[0] eq "autoconf")
   if (-r "/proc/fs/xfs/stat")
   {
     print "yes\n";
-    exit 0;
   }
     else
   {
-    print "/proc/fs/xfs/stat not found\n";
-    exit 1;
+    print "no (/proc/fs/xfs/stat not found)\n";
   }
+  exit 0;
 }
 
 my %runtime_stats = (

plugins/dkim/dkimproxy_mails

@@ -37,11 +37,10 @@ STATEFILE=$MUNIN_PLUGSTATE/dkimproxy_mails.offset
 if [ "$1" = "autoconf" ]; then
         if [ -f "${MAIL_LOG}" -a -n "${LOGTAIL}" -a -x "${LOGTAIL}" ] ; then
                 echo yes
-                exit 0
         else
                 echo no
-                exit 1
         fi
+        exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/dovecot/dovecot1

@@ -36,12 +36,12 @@ if ( $ARGV[0] and $ARGV[0] eq "autoconf" ) {
 
   if (! -x $DOVEADM) {
     print "no (no doveadm)\n";
-    exit(1);
+    exit(0);
   }
 
   if (! -f $logfile) {
     print "no (logfile $logfile does not exist)\n";
-    exit(1);
+    exit(0);
   }
 
   if (-r "$logfile") {
@@ -50,7 +50,7 @@ if ( $ARGV[0] and $ARGV[0] eq "autoconf" ) {
   } else {
     print "no (logfile not readable)\n";
   }
-  exit 1;
+  exit 0;
 }
 
 if (-f "$logfile.0") {

plugins/fan/ibmfan

@@ -19,11 +19,10 @@
 if [ "$1" = "autoconf" ]; then
 	if [ -r /proc/acpi/ibm/fan ]; then
 		echo yes
-		exit 0
 	else
 		echo no
-		exit 1
 	fi
+	exit 0
 fi
 
 

plugins/fax/faxstat

@@ -20,11 +20,10 @@ FAXQ=${faxq:=/usr/sbin/faxqclean}
 if [ "$1" = "autoconf" ]; then
         if [ -x ${FAXSTAT} ] ; then
                 echo yes
-                exit 0
         else
                 echo no
-                exit 1
         fi
+        exit 0
 fi
 
 JOBTYPES="Running Waiting Done"

plugins/ftp/pure-ftpd-bw

@@ -42,11 +42,11 @@ if [ "$1" = "autoconf" ]; then
                         exit 0
                 else
                         echo "no (logtail not found)"
-                        exit 1
+                        exit 0
                 fi
         else
                 echo "no (logfile $LOGFILE does not exist)"
-                exit 1
+                exit 0
         fi
 fi
 

plugins/ftp/pure-ftpd-logs

@@ -32,11 +32,11 @@ if [ "$1" = "autoconf" ]; then
         		exit 0
 		else
 			echo "no (logtail not found)"
-			exit 1
+			exit 0
 		fi
 	else
 		echo "no (logfile ${LOGFILE} does not exist)"
-		exit 1
+		exit 0
 	fi
 fi
 

plugins/ftp/vsftpd

@@ -8,7 +8,7 @@ if [ "$1" = "autoconf" ]; then
 		exit 0
 	else
 		echo no
-		exit 1
+		exit 0
 	fi
 fi
 

plugins/ftp/vsftpd-rel

@@ -56,7 +56,7 @@ then
 	exit 0
     else
 	echo no
-	exit 1
+	exit 0
     fi
 fi
 

plugins/google/google-rank

@@ -40,14 +40,12 @@
 
 # Auto Configure, Check it word 1 is defined
 if [ "$1" = "autoconf" ]; then
-   if [ "$URL1" != "" ]; then
-      if [ "$WORD1" != "" ]; then
-         echo yes
-         exit 0
-      fi
+   if [ -n "$URL1" ] && [ -n "$WORD1" ]; then
+      echo yes
+   else
+      echo no
    fi
-   echo no
-   exit 1
+   exit 0
 fi
 
 #Configure, loop through each variable defined WORDx URLx dumping it to munin

plugins/http/mongrel_memory

@@ -83,7 +83,7 @@ when "autoconf"
     exit 0
   end
   puts "no"
-  exit 1
+  exit 0
 else
   mpm.run
 end

plugins/http/mongrel_process_memory

@@ -94,7 +94,7 @@ when "autoconf"
     exit 0
   end
   puts "no"
-  exit 1
+  exit 0
 else
   mpm.run
 end

plugins/http/wget_page

@@ -97,30 +97,20 @@ default_timeout=20
 default_join_lines=true
 
 if [ "${1}" = "autoconf" ]; then
-  result=0
-  if [ -z "${wget_bin}" -o ! -f "${wget_bin}" -o ! -x "${wget_bin}" ]; then
-    result=1
+  if [ -z "$wget_bin" ] || [ ! -f "$wget_bin" ] || [ ! -x "$wget_bin" ]; then
+    echo "no (missing 'wget' executable)"
+  elif [ -z "$time_bin" ] || [ ! -f "$time_bin" ] || [ ! -x "$time_bin" ]; then
+    echo "no (missing 'time' executable)"
+  elif [ -z "$mktemp_bin" ] || [ ! -f "$mktemp_bin" ] || [ ! -x "$mktemp_bin" ]; then
+    echo "no (missing 'mktemp' executable)"
+  elif [ -z "$grep_bin" ] || [ ! -f "$grep_bin" ] || [ ! -x "$grep_bin" ]; then
+    echo "no (missing 'grep' executable)"
+  elif [ -z "$tail_bin" ] || [ ! -f "$tail_bin" ] || [ ! -x "$tail_bin" ]; then
+    echo "no (missing 'tail' executable)"
   else
-    if [ -z "${time_bin}" -o ! -f "${time_bin}" -o ! -x "${time_bin}" ]; then
-      result=2
-    else
-      if [ -z "${mktemp_bin}" -o ! -f "${mktemp_bin}" -o ! -x "${mktemp_bin}" ]; then
-        result=3
-      else
-        if [ -z "${grep_bin}" -o ! -f "${grep_bin}" -o ! -x "${grep_bin}" ]; then
-          result=4
-        else
-          [ -z "${tail_bin}" -o ! -f "${tail_bin}" -o ! -x "${tail_bin}" ] && result=5
-        fi
-      fi
-    fi
-  fi
-  if [ ${result} -eq 0 ]; then
     echo "yes"
-  else
-    echo "no"
   fi
-  exit $result
+  exit 0
 fi
 
 if [ -z "${names}" ]; then

plugins/icecast/icecast2

@@ -26,11 +26,11 @@ case $1 in
     autoconf|detect)
 	if [ -d $ICEDIR/ ] ; then
 	    echo yes
-	    exit 0
         else
 	    echo "no (icedir not found)"
-	    exit 1
-        fi;;
+        fi
+        exit 0
+        ;;
     config)
 	cat <<'EOF'
 graph_title Icecast2 Stream Listeners

plugins/ip6/ip6_

@@ -31,15 +31,13 @@ if [ "$1" = "autoconf" ]; then
 		ip6tables -L INPUT -v -n -x -w >/dev/null 2>/dev/null
 		if [ $? -gt 0 ]; then
 			echo "no (could not run ip6tables as user `whoami`)"
-			exit 1
 		else
 			echo yes
-			exit 0
 		fi
 	else
 		echo "no (/proc/net/dev not found)"
-		exit 1
 	fi
+	exit 0
 fi
 
 if [ "$1" = "suggest" ]; then

plugins/jvm/jstat__gccount

@@ -110,15 +110,13 @@ if [ "$1" = "autoconf" ]; then
 
   if [ ! -x "${JAVA_HOME}/bin/jstat" ]; then
     echo "no (No jstat found in ${JAVA_HOME}/bin)"
-    exit 1
+  elif [ ! -f "$pidfilepath" ]; then
+    echo "no (missing file $pidfilepath)"
+  elif [ ! -r "$pidfilepath" ]; then
+    echo "no (cannot read $pidfilepath)"
+  else
+    echo "yes"
   fi
-
-  if [ ! -f "${pidfilepath}" ] || [ ! -r "${pidfilepath}" ]; then
-    echo "no (No such file ${pidfilepath} or cannot read ${pidfilepath}"
-    exit 1
-  fi
-
-  echo "yes"
   exit 0
 fi
 

plugins/jvm/jstat__gctime

@@ -130,15 +130,13 @@ if [ "$1" = "autoconf" ]; then
 
   if [ ! -x "${JAVA_HOME}/bin/jstat" ]; then
     echo "no (No jstat found in ${JAVA_HOME}/bin)"
-    exit 1
+  elif [ ! -f "$pidfilepath" ]; then
+    echo "no (missing file $pidfilepath)"
+  elif [ ! -r "$pidfilepath" ]; then
+    echo "no (cannot read $pidfilepath)"
+  else
+    echo "yes"
   fi
-
-  if [ ! -f "${pidfilepath}" ] || [ ! -r "${pidfilepath}" ]; then
-    echo "no (No such file ${pidfilepath} or cannot read ${pidfilepath}"
-    exit 1
-  fi
-
-  echo "yes"
   exit 0
 fi
 

plugins/jvm/jstat__heap

@@ -185,15 +185,13 @@ if [ "$1" = "autoconf" ]; then
 
   if [ ! -x "${JAVA_HOME}/bin/jstat" ]; then
     echo "no (No jstat found in ${JAVA_HOME}/bin)"
-    exit 1
+  elif [ ! -f "$pidfilepath" ]; then
+    echo "no (missing file $pidfilepath)"
+  elif [ ! -r "$pidfilepath" ]; then
+    echo "no (cannot read $pidfilepath)"
+  else
+    echo "yes"
   fi
-
-  if [ ! -f "${pidfilepath}" ] || [ ! -r "${pidfilepath}" ]; then
-    echo "no (No such file ${pidfilepath} or cannot read ${pidfilepath}"
-    exit 1
-  fi
-
-  echo "yes"
   exit 0
 fi
 

plugins/memory/kmemsum

@@ -16,18 +16,15 @@
 
 if [ "$1" = "autoconf" ]; then
     if [ -x /sbin/sysctl ]; then
-        /sbin/sysctl vm.kmem_size_max > /dev/null
-    	if [ $? = "0" ]; then
-	    	echo yes
-    		exit 0
-    	else
-		    echo no
-		    exit 1
-	    fi
+        if /sbin/sysctl vm.kmem_size_max >/dev/null 2>&1; then
+            echo "yes"
+        else
+            echo "no (missing sysctl variable 'vm.kmem_size_max')"
+        fi
     else
-        echo no
-        exit 1
+        echo "no (missing 'sysctl' executable)"
     fi
+    exit 0
 fi
 
 TEXT=`kldstat | tr a-f A-F | awk 'BEGIN {print "ibase=16"}; NR > 1 {print $4}' | bc | awk '{a+=$1}; END {print a}'`

plugins/memory/proc_memory_status

@@ -14,11 +14,10 @@ pid=`pgrep -o -x "$process"`
 if [ "$1" = "autoconf" ]; then
 	if [ -r /proc/$pid/status ]; then
 		echo yes
-		exit 0
 	else
 		echo no
-		exit 1
 	fi
+	exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/mogilefs/mogilefsd_activity

@@ -61,7 +61,7 @@ sub autoconf {
     if ($ret)
     {
         print "no ($ret)\n";
-        exit 1;
+        exit 0;
     }
 
     my $conn = IO::Socket::INET->new(PeerAddr => $host,
@@ -72,7 +72,7 @@ sub autoconf {
     if (!$conn)
     {
         print "no (could not connect: $!)\n";
-        exit 1;
+        exit 0;
     }
 
     my $request = "!stats\n";

plugins/mogilefs/mogilefsd_queries

@@ -61,7 +61,7 @@ sub autoconf {
     if ($ret)
     {
         print "no ($ret)\n";
-        exit 1;
+        exit 0;
     }
 
     my $conn = IO::Socket::INET->new(PeerAddr => $host,
@@ -72,7 +72,7 @@ sub autoconf {
     if (!$conn)
     {
         print "no (could not connect: $!)\n";
-        exit 1;
+        exit 0;
     }
 
     my $request = "!stats\n";

plugins/mpd/mpdstats_

@@ -83,15 +83,11 @@ ACTION="$(basename "$0" | sed 's/^.*_//')"
 do_autoconf () {
     if [ -z "$NCBIN" ] ; then
         echo "no (missing netcat program ('nc'))"
-        exit 1
-    fi
-
-    if ! echo version | "$NCBIN" "$MPDHOST" "$MPDPORT" >/dev/null 2>&1; then
+    elif ! echo version | "$NCBIN" "$MPDHOST" "$MPDPORT" >/dev/null 2>&1; then
         echo "no (connection failed)"
-        exit 1
+    else
+        echo "yes"
     fi
-
-    echo "yes"
     exit 0
 }
 

plugins/munin/healthcheck_log

@@ -78,9 +78,9 @@ MINUTE_BY_GREP_RANGE=10
 if [ "$1" = "autoconf" ]; then
     if [ $CHECKMAX -le 1 ]; then
          echo no
-         exit 1
+    else
+         echo yes
     fi
-    echo yes
     exit 0
 fi
 

plugins/munin/healthcheck_process

@@ -40,9 +40,9 @@ let CHECKMAX="$CHECKMAX + 1"
 if [ "$1" = "autoconf" ]; then
     if [ $CHECKMAX -le 1 ]; then
          echo no
-         exit 1
+    else
+         echo yes
     fi
-    echo yes
     exit 0
 fi
 

plugins/munin/healthcheck_url

@@ -90,9 +90,9 @@ CURL=/usr/bin/curl
 if [ "$1" = "autoconf" ]; then
     if [ $CHECKMAX -le 1 ]; then
          echo no
-         exit 1
+    else
+         echo yes
     fi
-    echo yes
     exit 0
 fi
 

plugins/munin/update

@@ -40,11 +40,11 @@ fi
 
 if [ "$1" = "autoconf" ]; then
 	if [ -f $UPDATE_STATSFILE ]; then
-	    echo "yes"
-	    exit 0
+		echo "yes"
+	else
+		echo "no (logfile not readable)"
 	fi
-	echo "no (logfile not readable)"
-	exit 1
+	exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/mysql/mysql_report

@@ -60,13 +60,12 @@ default_args="--base 1000 -l 0"
 default_scale="no"
 
 if [ "${1}" = "autoconf" ]; then
-  result=0
   if [ -z "${mysqlbin}" ]; then
-    echo "no"
+    echo "no (missing mysql executable)"
   else
     echo "yes"
   fi
-  exit $result
+  exit 0
 fi
 
 if [ -z "${names}" ]; then

plugins/mysql/mysql_size_ondisk

@@ -42,11 +42,10 @@ then
 	if du -sb $DIR &> /dev/null
 	then
 		echo "yes"
-		exit 0
 	else
 		echo "no"
-		exit 1
 	fi
+	exit 0
 elif [ "${1:-}" = "config" ]
 then
 	echo "graph_title MySQL on-disk database size"

plugins/mythtv/dvb-signal

@@ -18,19 +18,15 @@ Tuner=0
 
 case $1 in
     autoconf|detect)
-       REQ=`which femon`
-       if [ "$REQ" = "" ]; then
+       if ! which femon >/dev/null; then
           echo "no (femon not installed)"
-          exit 1
-       fi
-
-       if [ -e  /dev/dvb/adapter$Tuner/ ]; then
+       elif [ -e "/dev/dvb/adapter$Tuner/" ]; then
           echo yes
-          exit 0
        else
           echo "no (dvb tuner $Tuner not found)"
-          exit 1
-       fi;;
+       fi
+       exit 0
+       ;;
 
     config)
       echo "graph_title  DVB signal strength"

plugins/mythtv/mythtv_programs

@@ -42,12 +42,10 @@ my $Channel="";
  if ($ARGV[0] and $ARGV[0] eq "autoconf" ) {
     if ( $SQLDBName ne "" ) {
        print "yes\n";
-       exit 0;
     } else {
-       print "no\n";
-       print "cannot find MythTV configuration file my.txt\n";
-       exit 1;
+       print "no (cannot find MythTV configuration file my.txt)\n";
     }
+    exit 0;
  }
 
 #Config Options

plugins/nagios/nagiosstatus

@@ -46,11 +46,10 @@ if ($ARGV[0]) {
   if ($ARGV[0] eq 'autoconf') {
     if (-r $NAGIOSSTAT) {
       print "yes";
-      exit 0;
     } else {
       print "no (Nagios status file not found)";
-      exit 1;
     }
+    exit 0;
   } elsif ($ARGV[0] eq "config") {
     print "graph_args --base 1000 -l 0 --vertical-label Checks\n";
     print "graph_title Nagios status\n";

plugins/network/brc_rssi

@@ -77,11 +77,11 @@ EOF
 
 do_autoconf () {
     case $WLERR in
-	0) echo yes; exit 0;;
-	127) echo "no ($AL)"; exit 1;;
-	*)   echo "no (wl error: $AL)"; exit 1;;
-        *) echo "no (no wl executable, or error)"; exit 1;;
+        0) echo yes;;
+        127) echo "no ($AL)";;
+        *) echo "no (wl error: $AL)";;
     esac
+    exit 0
 }
 
 case $1 in

plugins/network/denyhosts

@@ -19,11 +19,10 @@ LOG=/etc/hosts.deny
 if [ "$1" = "autoconf" ]; then
         if [ -r "$LOG" ]; then
                 echo yes
-                exit 0
         else
                 echo no
-                exit 1
         fi
+        exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/network/dns/dnsresponse_

@@ -93,11 +93,10 @@ if ( defined $ARGV[0] and $ARGV[0] eq "autoconf" ) {
 	if (! -s $resconf) { $ret .= "$resconf not found. "; }
 	if ($ret) {
 		print "no ($ret)\n";
-		exit 1;
 	} else {
 		print "yes\n";
-		exit 0;
 	}
+	exit 0;
 }
 
 if ( defined $ARGV[0] and $ARGV[0] eq "suggest" ) {

plugins/network/ethtool_

@@ -42,11 +42,10 @@ if [ "$1" = "autoconf" ]; then
   $ETHTOOL 2>/dev/null >/dev/null
   if [ $? -ne 0 ]; then
     echo no
-    exit 1
   else
     echo yes
-    exit 0
   fi
+  exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/network/fms

@@ -272,11 +272,10 @@ if ( !( ( $usenetstat eq "yes" and defined($fmshost) and defined($fmsport) ) or
 if ( defined($ARGV[0]) and $ARGV[0] eq "autoconf" ) {
 	if ( ( $usenetstat eq "yes" and defined($fmshost) and defined($fmsport) ) or ( $usenetstat eq "no" and defined($adminhost) and defined($adminport) and defined($adminusername) and defined($adminpassword) ) ) {
 		print("yes\n");
-		exit 0;
 	} else {
 		print("no\n");
-		exit 1;
 	}
+	exit 0;
 }
 
 if ( $usenetstat eq "yes" and defined($fmshost) and defined($fmsport) ) {

plugins/network/fms_apps

@@ -200,11 +200,10 @@ if ( defined($ARGV[0]) ) {
 	if ( $ARGV[0] eq "autoconf" ) {
 		if ( defined($host) and defined($port) and defined($username) and defined($password) ) {
 			print("yes\n");
-			exit 0;
 		} else {
 			print("no\n");
-			exit 1;
 		}
+		exit 0;
 	} elsif ( $ARGV[0] eq "config" ) {
 		print <<'END_GRAPH_CONFIG';
 graph_title Flash Media Server application connections

plugins/network/fms_apps_rate

@@ -201,11 +201,10 @@ if ( defined($ARGV[0]) ) {
 	if ( $ARGV[0] eq "autoconf" ) {
 		if ( defined($host) and defined($port) and defined($username) and defined($password) ) {
 			print("yes\n");
-			exit 0;
 		} else {
 			print("no\n");
-			exit 1;
 		}
+		exit 0;
 	} elsif ( $ARGV[0] eq "config" ) {
 		print <<'END_GRAPH_CONFIG';
 graph_title Flash Media Server application connection rates

plugins/network/fwbuilder_

@@ -64,15 +64,13 @@ if [ "$1" = "autoconf" ]; then
 		iptables -L INPUT -v -n -x -w >/dev/null 2>/dev/null
 		if [ $? -gt 0 ]; then
 			echo "no (could not run iptables as user `whoami`)"
-			exit 1
 		else
 			echo yes
-			exit 0
 		fi
 	else
 		echo "no (/proc/net/dev not found)"
-		exit 1
 	fi
+	exit 0
 fi
 
 if [ "$1" = "suggest" ]; then

plugins/network/hostsdeny

@@ -24,11 +24,10 @@
 if [ "$1" = "autoconf" ]; then
         if [ -r "$LOG" ]; then
                 echo yes
-                exit 0
         else
                 echo no
-                exit 1
         fi
+        exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/network/if_uptime

@@ -122,10 +122,8 @@ EOF
 		autoconf)
 			if [[ $(ifconfig &> /dev/null; echo "$?") == 0 ]]; then
 				echo yes
-				exit 0
 			else
 				echo "no (ifconfig doesn't work out)"
-				exit 1
 			fi
 			exit 0
 		;;

plugins/network/ip_forward_

@@ -30,15 +30,13 @@ if [ "$1" = "autoconf" ]; then
 		iptables-save -c >/dev/null 2>/dev/null
 		if [ $? -gt 0 ]; then
 			echo "no (could not run iptables-save as user `whoami`)"
-			exit 1
 		else
 			echo yes
-			exit 0
 		fi
 	else
 		echo "no (/proc/net/dev not found)"
-		exit 1
 	fi
+	exit 0
 fi
 
 if [ "$1" = "suggest" ]; then

plugins/network/ipfwnat_

@@ -34,13 +34,13 @@ ipfw="/sbin/ipfw"
 if [ "$1" = "autoconf" ]; then
 	if [ ! -x $ipfw ]; then
 		echo "no ($ipfw not found)"
-		exit 1
+		exit 0
 	fi
 
 	err=$($ipfw nat show config 2>&1)
 	if [ $? -ne 0 ]; then
 		echo "no ($err)"
-		exit 1
+		exit 0
 	fi
 
 	echo "yes"

plugins/network/ipt_accounting_

@@ -45,15 +45,13 @@ if [ "$1" = "autoconf" ]; then
                 iptables -L INPUT -v -n -x -w >/dev/null 2>/dev/null
                 if [ $? -gt 0 ]; then
                         echo "no (could not run iptables as user `whoami`)"
-                        exit 1
                 else
                         echo yes
-                        exit 0
                 fi
         else
                 echo "no (/proc/net/dev not found)"
-                exit 1
         fi
+        exit 0
 fi
 
 if [ "$1" = "suggest" ]; then

plugins/network/ipt_basic_

@@ -48,15 +48,13 @@ if [ "$1" = "autoconf" ]; then
 		RES=`$iptables -L $TNAME -nvx -w 2>&1 >/dev/null`
 		if [ $? -gt 0 ]; then
 			echo "no (could not run iptables as user `whoami`; $RES)"
-			exit 1
 		else
 			echo yes
-			exit 0
 		fi
 	else
 		echo "no (/proc/net/dev not found)"
-		exit 1
 	fi
+	exit 0
 fi
 
 if [ "$1" = "suggest" ]; then

plugins/network/ldap_connections

@@ -99,12 +99,11 @@ if [ "$1" = "autoconf" ]; then
   done
 
   if [ -n "$ONE_LISTENING" ]; then
-  	echo yes
-  	exit 0
+    echo "yes"
   else
-  	echo no '(no slapd listening on '$PORTS')'
-  	exit 1
+    echo "no (no slapd listening on $PORTS)"
   fi
+  exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/network/mtr100_

@@ -34,17 +34,15 @@ totrace=`basename $0 | sed 's/^mtr100_//g'`
 if [ "$1" = "autoconf" ]; then
     if ( mtr -nrc 1 localhost 2>/dev/null >/dev/null ); then
         echo yes
-        exit 0
     else
         if [ $? -eq 127 ]
         then
             echo "no (mtr program not found - install the mtr(-tiny) package)"
-            exit 1
         else
             echo no
-            exit 1
         fi
     fi
+    exit 0
 exit 0
 fi
 

plugins/network/proc_netstat

@@ -32,11 +32,10 @@ STRIP_OUTPUT="/\($TO_REMOVE\)/d"
 if [ "$1" = "autoconf" ]; then
   if [ -r $NETSTATS ]; then
     echo yes
-    exit 0
   else
     echo no
-    exit 1
   fi
+  exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/network/qos_

@@ -46,9 +46,9 @@ if ( exists $ARGV[0] and $ARGV[0] eq 'autoconf' ) {
     } else {
       print "no (program $TC died)\n";
     }
-    exit 1;
+  } else {
+    print "yes\n";
   }
-  print "yes\n";
   exit 0;
 }
 

plugins/network/smtp_hello_

@@ -43,11 +43,10 @@ elif [ "$1" == "autoconf" ]; then
 
         if [ -x /usr/bin/time ] && [ -x /usr/bin/nc ]; then
                 echo "yes"
-                exit 0
         else
                 echo "no (/usr/bin/time or /usr/bin/nc missing)"
-                exit 1
         fi
+        exit 0
 
 else
 

plugins/network/tc_

@@ -52,11 +52,10 @@ case "$1" in
     autoconf)
 	if [ -r /proc/net/dev ]; then
 	    echo yes
-	    exit 0
 	else
 	    echo "no (/proc/net/dev not found)"
-	    exit 1
 	fi
+	exit 0
 	;;
     suggest)
 	if [ -r /proc/net/dev ]; then

plugins/network/tc_drops_

@@ -23,11 +23,10 @@ case $1 in
     autoconf)
 	if [ -r /proc/net/dev ]; then
 	    echo yes
-	    exit 0
 	else
 	    echo "no (/proc/net/dev not found)"
-	    exit 1
 	fi
+	exit 0
 	;;
     suggest)
 	if [ -r /proc/net/dev ]; then

plugins/network/tc_packets_

@@ -23,11 +23,10 @@ case $1 in
     autoconf)
 	if [ -r /proc/net/dev ]; then
 	    echo yes
-	    exit 0
 	else
 	    echo "no (/proc/net/dev not found)"
-	    exit 1
 	fi
+	exit 0
 	;;
     suggest)
 	if [ -r /proc/net/dev ]; then

plugins/network/zenus_

@@ -233,9 +233,9 @@ sub load_data {
 if ( defined $ARGV[0] and $ARGV[0] eq "autoconf" ) {
     if ($ret) {
         print "no ($ret)\n";
-        exit 1;
+    } else {
+        print "yes\n";
     }
-    print "yes\n";
     exit 0;
 }
 

plugins/nfs/nfsv4

@@ -48,11 +48,10 @@ proc="access close commit create delegpurge delegreturn getattr getfh link lock
 if [ "$1" = "autoconf" ]; then
 	if [ -f "$NFSD" ]; then
 		echo yes
-		exit 0
 	else
 		echo "no (no $NFSD)"
-		exit 1
 	fi
+	exit 0
 fi
 
 if [ "$1" = "config" ]; then

plugins/nginx/nginx-combined

@@ -48,7 +48,7 @@ if ( exists $ARGV[0] and $ARGV[0] eq "autoconf" )
 {
 	if ($ret){
 		print "no ($ret)\n";
-		exit 1;
+		exit 0;
 	}
 
 	my $ua = LWP::UserAgent->new(timeout => 30);
@@ -57,7 +57,7 @@ if ( exists $ARGV[0] and $ARGV[0] eq "autoconf" )
 	unless ($response->is_success and $response->content =~ /server/im)
 	{
 		print "no (no nginx status on $URL)\n";
-		exit 1;
+		exit 0;
 	}
 	else
 	{

plugins/nginx/nginx_connection_request

@@ -112,7 +112,7 @@ my $UA = exists $ENV{'ua'} ? $ENV{'ua'} : 'nginx-status-verifier/0.1';
 if (exists $ARGV[0] and $ARGV[0] eq "autoconf" ) {
   if ($ret) {
     print "no ($ret)\n";
-    exit 1;
+    exit 0;
   }
   my $ua = LWP::UserAgent->new(timeout => 30);
   # Set the UA to something different from the libwww-perl.
@@ -122,7 +122,7 @@ if (exists $ARGV[0] and $ARGV[0] eq "autoconf" ) {
 
   unless ($response->is_success and $response->content =~ /server/im) {
     print "no (no nginx status on $URL)\n";
-    exit 1;
+    exit 0;
   } else {
     print "yes\n";
     exit 0;

plugins/ntp/ntp_peers

@@ -69,15 +69,13 @@ if ($ARGV[0] and $ARGV[0] eq "autoconf") {
 	if ($? eq "0") {
 		if (`$NTPQ -np | wc -l` > 0) {
 			print "yes\n";
-			exit 0;
 		} else {
 			print "no (unable to list peers)\n";
-			exit 1;
 		}
 	} else {
 		print "no (ntpq not found)\n";
-		exit 1;
 	}
+	exit 0;
 }
 
 my %peers;

plugins/ntp/ntp_peers_ipv6

@@ -55,15 +55,13 @@ if ($ARGV[0] and $ARGV[0] eq "autoconf") {
 	if ($? eq "0") {
 		if (`$NTPQ -np | wc -l` > 0) {
 			print "yes\n";
-			exit 0;
 		} else {
 			print "no (unable to list peers)\n";
-			exit 1;
 		}
 	} else {
 		print "no (ntpq not found)\n";
-		exit 1;
 	}
+	exit 0;
 }
 
 my %peers;

plugins/ntp/ntp_queries

@@ -51,15 +51,13 @@ if ($ARGV[0] and $ARGV[0] eq "autoconf") {
     if ($? eq "0") {
         if (`$NTPDC -c sysstats | wc -l` > 0) {
             print "yes\n";
-            exit 0;
         } else {
             print "no (unable to list system stats)\n";
-            exit 1;
         }
     } else {
         print "no (ntpdc not found)\n";
-        exit 1;
     }
+    exit 0;
 }
 
 my $queries = 0;

plugins/openvz/vpsmem

@@ -12,11 +12,10 @@ BEANCOUNTERS=/proc/user_beancounters
 if [ "$1" == "autoconf" ]; then
     if [ -e $BEANCOUNTERS ]; then
         echo yes
-        exit 0
     else
         echo no
-        exit 1
     fi
+    exit 0
 fi
 
 if [ ! -r $BEANCOUNTERS ]; then

plugins/oracle/oracle__connections

@@ -66,14 +66,14 @@ if (exists $ARGV[0]) {
 	# Check for DBD::Oracle
 	if (! eval "require DBD::Oracle;") {
 	     print "no (DBD::Oracle not found)";
-	     exit 1;
+	     exit 0;
 	}
         if ($dbh) {
             print "yes\n";
             exit 0;
         } else {
             print "no Unable to access Database $dbname on host $dbhost as user $dbuser.\nError returned was: ". $DBI::errstr;
-            exit 1;
+            exit 0;
 	}
     }
 

plugins/oracle/oracle__database_hitratio

@@ -63,14 +63,14 @@ if (exists $ARGV[0]) {
 	# Check for DBD::Oracle
 	if (! eval "require DBD::Oracle;") {
 	     print "no (DBD::Oracle not found)";
-	     exit 1;
+	     exit 0;
 	}
         if ($dbh) {
             print "yes\n";
             exit 0;
         } else {
             print "no Unable to access Database $dbname on host $dbhost as user $dbuser.\nError returned was: ". $DBI::errstr;
-            exit 1;
+            exit 0;
 	}
     }
 

plugins/oracle/oracle__locks

@@ -64,14 +64,14 @@ if (exists $ARGV[0]) {
 	# Check for DBD::Oracle
 	if (! eval "require DBD::Oracle;") {
 	     print "no (DBD::Oracle not found)";
-	     exit 1;
+	     exit 0;
 	}
         if ($dbh) {
             print "yes\n";
             exit 0;
         } else {
             print "no Unable to access Database $dbname on host $dbhost as user $dbuser.\nError returned was: ". $DBI::errstr;
-            exit 1;
+            exit 0;
 	}
     }