src/src/exiwhat.src

   1 #! /bin/sh
   2 # $Cambridge: exim/src/src/exiwhat.src,v 1.4 2009/10/19 11:47:44 nm4 Exp $
   3
   4 # Copyright (c) 2003 University of Cambridge.
   5 # See the file NOTICE for conditions of use and distribution.
   6
   7 # Except when they appear in comments, the following placeholders in this
   8 # source are replaced when it is turned into a runnable script:
   9 #
  10 # CONFIGURE_FILE_USE_NODE
  11 # CONFIGURE_FILE
  12 # BIN_DIRECTORY
  13 # EXIWHAT_PS_CMD
  14 # EXIWHAT_PS_ARG
  15 # EXIWHAT_KILL_SIGNAL
  16 # EXIWHAT_EGREP_ARG
  17 # EXIWHAT_MULTIKILL_CMD
  18 # EXIWHAT_MULTIKILL_ARG
  19
  20 # PROCESSED_FLAG
  21
  22 # Shell script for seeing what the exim processes are doing. It gets rid
  23 # of the old process log, then sends SIGUSR1 to all exim processes to get
  24 # them to write their state to the log. Then it displays the contents of
  25 # the log.
  26
  27 # The following lines are generated from Exim's configuration file when
  28 # this source is built into a script, but you can subsequently edit them
  29 # without rebuilding things, as long are you are careful not to overwrite
  30 # the script in the next Exim rebuild/install. However, it's best to
  31 # arrange your build-time configuration file to get the correct values.
  32
  33 # Some operating systems have a command that finds processes that match
  34 # certain conditions (by default usually those running specific commands)
  35 # and sends them signals. If such a command is defined for your OS, the
  36 # following variables are set and used.
  37
  38 multikill_cmd=EXIWHAT_MULTIKILL_CMD
  39 multikill_arg=EXIWHAT_MULTIKILL_ARG
  40
  41 # In other operating systems, Exim has to use "ps" and "egrep" to find the
  42 # processes itself. In those cases, the next three variables are used:
  43
  44 ps_cmd=EXIWHAT_PS_CMD
  45 ps_arg=EXIWHAT_PS_ARG
  46 egrep_arg=EXIWHAT_EGREP_ARG
  47
  48 # In both cases, kill_arg is the argument for the (multi)kill command to send
  49 # SIGUSR1 (at least one OS requires a numeric value).
  50
  51 signal=EXIWHAT_KILL_SIGNAL
  52
  53 # See if this installation is using the esoteric "USE_NODE" feature of Exim,
  54 # in which it uses the host's name as a suffix for the configuration file name.
  55
  56 if [ "CONFIGURE_FILE_USE_NODE" = "yes" ]; then
  57   hostsuffix=.`uname -n`
  58 fi
  59
  60 # Now find the configuration file name. This has got complicated because
  61 # CONFIGURE_FILE may now be a list of files. The one that is used is the first
  62 # one that exists. Mimic the code in readconf.c by testing first for the
  63 # suffixed file in each case.
  64
  65 set `awk -F: '{ for (i = 1; i <= NF; i++) print $i }' <<End
  66 CONFIGURE_FILE
  67 End
  68 `
  69 while [ "$config" = "" -a $# -gt 0 ] ; do
  70   if [ -f "$1$hostsuffix" ] ; then
  71     config="$1$hostsuffix"
  72   elif [ -f "$1" ] ; then
  73     config="$1"
  74   fi
  75   shift
  76 done
  77
  78 # check we have a config file
  79 if [ "$config" = "" -o ! -f "$config" ]; then
  80   echo Config file not found.
  81   exit 1
  82 fi
  83
  84 # Determine where the spool directory is. Search for an exim_path setting
  85 # in the configure file; otherwise use the bin directory. Call that version of
  86 # Exim to find the spool directory. BEWARE: a tab character is needed in the
  87 # first command below. It has had a nasty tendency to get lost in the past. Use
  88 # a variable to hold a space and a tab. This is less likely to be touched.
  89
  90 st='     '
  91 exim_path=`grep "^[$st]*exim_path" $config | sed "s/.*=[$st]*//"`
  92 if test "$exim_path" = ""; then exim_path=BIN_DIRECTORY/exim; fi
  93 spool_directory=`$exim_path -C $config -bP spool_directory | sed "s/.*=[ ]*//"`
  94 process_log_path=`$exim_path -C $config -bP process_log_path | sed "s/.*=[ ]*//"`
  95
  96 # The file that Exim writes when sent the SIGUSR1 signal is specified by
  97 # the process_log_path option. If that is not defined, Exim uses the file
  98 # called "exim-process.info" in the spool directory.
  99
 100 log=$process_log_path
 101 if [ "$log" = "" ] ; then
 102   log=$spool_directory/exim-process.info
 103 fi
 104
 105 # Now do the job.
 106
 107 /bin/rm -f ${log}
 108 if [ -f ${log} ]; then
 109   echo "** Failed to remove ${log}"
 110   exit 1
 111 fi
 112
 113 # If there is a multikill command, use it. On some OS this command is called
 114 # "killall" (Linux, FreeBSD). On Solaris it is called "pkill". Note that on
 115 # Solaris, "killall" kills ALL processes - this is the System V version of this
 116 # command, and not what we want!
 117
 118 if [ "$multikill_cmd" != "" ] && type "$multikill_cmd" >/dev/null 2>&1; then
 119   $multikill_cmd $signal "$multikill_arg"
 120
 121 # No multikill command; do it the hard way
 122
 123 else
 124   $ps_cmd $ps_arg | \
 125     egrep "$egrep_arg" | \
 126     awk "{print \"kill $signal \"\$1}" | \
 127     uniq | sh
 128 fi
 129
 130 sleep 1
 131
 132 if [ ! -s ${log} ] ; then echo "No exim process data" ;
 133   else sed 's/^[0-9-]* [0-9:]* \([+-][0-9]* \)*\(\[[0-9]\+\] \)\?//' ${log} | sort -n | uniq ; fi
 134
 135
 136 # End of exiwhat