periodic.sh revision 321260 
1#!/bin/sh -
2#
3# $FreeBSD: stable/10/usr.sbin/periodic/periodic.sh 321260 2017-07-20 00:33:12Z ngie $
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
11usage () {
12    echo "usage: $0 <directory of files to execute>" 1>&2
13    echo "or     $0 { daily | weekly | monthly | security }"    1>&2
14    exit 1
15}
16
17output_pipe()
18{
19    # Where's our output going ?
20    eval output=\$${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
29if [ $# -lt 1 ] ; then
30    usage
31fi
32
33# If possible, check the global system configuration file,
34# to see if there are additional dirs to check
35if [ -r /etc/defaults/periodic.conf ]; then
36    . /etc/defaults/periodic.conf
37    source_periodic_confs
38fi
39
40host=`hostname`
41export 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.
48if [ $1 != "LOCKED" ]; then
49    ret=0
50    for arg; do
51        lockfile=/var/run/periodic.${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
71fi
72
73if [ $# -ne 2 ]; then
74    usage
75fi
76shift
77arg=$1
78
79tmp_output=`mktemp ${TMPDIR:-/tmp}/periodic.XXXXXXXXXX`
80context="$PERIODIC"
81export PERIODIC="$arg${PERIODIC:+ }${PERIODIC}"
82
83# Execute each executable file in the directory list.  If the x bit is not
84# set, assume the user didn't really want us to muck with it (it's a
85# README file or has been disabled).
86
87success=YES info=YES badconfig=NO empty_output=YES	# Defaults when ${run}_* aren't YES/NO
88for var in success info badconfig empty_output; do
89    case $(eval echo "\$${arg##*/}_show_$var") in
90    [Yy][Ee][Ss]) eval $var=YES;;
91    [Nn][Oo])     eval $var=NO;;
92    esac
93done
94
95case $arg in
96/*) if [ -d "$arg" ]; then
97        dirlist="$arg"
98    else
99        echo "$0: $arg not found" >&2
100        continue
101    fi
102    ;;
103*)  dirlist=
104    for top in /etc/periodic ${local_periodic}; do
105        [ -d $top/$arg ] && dirlist="$dirlist $top/$arg"
106    done
107    ;;
108esac
109
110{
111    empty=TRUE
112    processed=0
113    for dir in $dirlist; do
114        for file in $dir/*; do
115            if [ -x $file -a ! -d $file ]; then
116                output=TRUE
117                processed=$(($processed + 1))
118                $file </dev/null >$tmp_output 2>&1
119                rc=$?
120                if [ -s $tmp_output ]; then
121                    case $rc in
122                    0)  [ $success = NO ] && output=FALSE;;
123                    1)  [ $info = NO ] && output=FALSE;;
124                    2)  [ $badconfig = NO ] && output=FALSE;;
125                    esac
126                    [ $output = TRUE ] && { cat $tmp_output; empty=FALSE; }
127                fi
128                cp /dev/null $tmp_output
129            fi
130        done
131    done
132    if [ $empty = TRUE ]; then
133        if [ $empty_output = TRUE ]; then
134            [ $processed = 1 ] && plural= || plural=s
135            echo "No output from the $processed file$plural processed"
136        fi
137    else
138        echo ""
139        echo "-- End of $arg output --"
140    fi
141} | output_pipe $arg "$context"
142
143rm -f $tmp_output
144