usr.sbin/periodic/periodic.sh

   1 #!/bin/sh -
   2 #
   3 # $FreeBSD: head/usr.sbin/periodic/periodic.sh 326041 2017-11-20 23:51:51Z asomers $
   4 #
   5 # Run nightly periodic scripts
   6 #
   7 # usage: periodic { daily | weekly | monthly | security } - run standard scripts
   8 #        periodic /absolute/path/to/directory  - run periodic scripts in dir
   9 #
  10
  11 usage () {
  12     echo "usage: $0 <directory of files to execute>" 1>&2
  13     echo "or     $0 { daily | weekly | monthly | security }"    1>&2
  14     exit 1
  15 }
  16
  17 output_pipe()
  18 {
  19     # Where's our output going ?
  20     eval output=\$${1##*/}_output
  21     case "$output" in
  22     /*) pipe="cat >>$output";;
  23     "") pipe=cat;;
  24     *)  pipe="mail -E -s '$host ${2}${2:+ }${1##*/} run output' $output";;
  25     esac
  26     eval $pipe
  27 }
  28
  29 if [ $# -lt 1 ] ; then
  30     usage
  31 fi
  32
  33 # If possible, check the global system configuration file,
  34 # to see if there are additional dirs to check
  35 if [ -r /etc/defaults/periodic.conf ]; then
  36     . /etc/defaults/periodic.conf
  37     source_periodic_confs
  38 fi
  39
  40 host=`hostname`
  41 export host
  42
  43 # If we were called normally, then create a lock file for each argument
  44 # in turn and reinvoke ourselves with the LOCKED argument.  This prevents
  45 # very long running jobs from being overlapped by another run as this is
  46 # will lead the system running progressivly slower and more and more jobs
  47 # are run at once.
  48 if [ $1 != "LOCKED" ]; then
  49     ret=0
  50     for arg; do
  51         lockfile=/var/run/periodic.${arg##*/}.lock
  52         lockf -t 0 "${lockfile}" /bin/sh $0 LOCKED "$arg"
  53         case $? in
  54         0) ;;
  55         73) #EX_CANTCREATE
  56             echo "can't create ${lockfile}" | \
  57                 output_pipe $arg "$PERIODIC"
  58             ret=1
  59             ;;
  60         75) #EX_TEMPFAIL
  61             echo "$host ${arg##*/} prior run still in progress" | \
  62                 output_pipe $arg "$PERIODIC"
  63             ret=1
  64             ;;
  65         *)
  66             ret=1
  67             ;;
  68         esac
  69     done
  70     exit $ret
  71 fi
  72
  73 if [ $# -ne 2 ]; then
  74     usage
  75 fi
  76 shift
  77 arg=$1
  78
  79 if [ -z "$PERIODIC_ANTICONGESTION_FILE" ] ; then
  80         export PERIODIC_ANTICONGESTION_FILE=`mktemp ${TMPDIR:-/tmp}/periodic.anticongestion.XXXXXXXXXX`
  81 fi
  82 if tty > /dev/null 2>&1; then
  83         export PERIODIC_IS_INTERACTIVE=1
  84 fi
  85 tmp_output=`mktemp ${TMPDIR:-/tmp}/periodic.XXXXXXXXXX`
  86 context="$PERIODIC"
  87 export PERIODIC="$arg${PERIODIC:+ }${PERIODIC}"
  88
  89 # Execute each executable file in the directory list.  If the x bit is not
  90 # set, assume the user didn't really want us to muck with it (it's a
  91 # README file or has been disabled).
  92
  93 success=YES info=YES badconfig=NO empty_output=YES      # Defaults when ${run}_* aren't YES/NO
  94 for var in success info badconfig empty_output; do
  95     case $(eval echo "\$${arg##*/}_show_$var") in
  96     [Yy][Ee][Ss]) eval $var=YES;;
  97     [Nn][Oo])     eval $var=NO;;
  98     esac
  99 done
 100
 101 case $arg in
 102 /*) if [ -d "$arg" ]; then
 103         dirlist="$arg"
 104     else
 105         echo "$0: $arg not found" >&2
 106         exit 1
 107     fi
 108     ;;
 109 *)  dirlist=
 110     for top in /etc/periodic ${local_periodic}; do
 111         [ -d $top/$arg ] && dirlist="$dirlist $top/$arg"
 112     done
 113     ;;
 114 esac
 115
 116 {
 117     empty=TRUE
 118     processed=0
 119     for dir in $dirlist; do
 120         for file in $dir/*; do
 121             if [ -x $file -a ! -d $file ]; then
 122                 output=TRUE
 123                 processed=$(($processed + 1))
 124                 $file </dev/null >$tmp_output 2>&1
 125                 rc=$?
 126                 if [ -s $tmp_output ]; then
 127                     case $rc in
 128                     0)  [ $success = NO ] && output=FALSE;;
 129                     1)  [ $info = NO ] && output=FALSE;;
 130                     2)  [ $badconfig = NO ] && output=FALSE;;
 131                     esac
 132                     [ $output = TRUE ] && { cat $tmp_output; empty=FALSE; }
 133                 fi
 134                 cp /dev/null $tmp_output
 135             fi
 136         done
 137     done
 138     if [ $empty = TRUE ]; then
 139         if [ $empty_output = TRUE ]; then
 140             [ $processed = 1 ] && plural= || plural=s
 141             echo "No output from the $processed file$plural processed"
 142         fi
 143     else
 144         echo ""
 145         echo "-- End of $arg output --"
 146     fi
 147 } | output_pipe $arg "$context"
 148
 149 rm -f $tmp_output
 150 rm -f $PERIODIC_ANTICONGESTION_FILE