src/src/exiwhat.src

   1 #! /bin/sh
   2
   3 # Copyright (c) University of Cambridge, 1995 - 2007
   4 # See the file NOTICE for conditions of use and distribution.
   5
   6 # Except when they appear in comments, the following placeholders in this
   7 # source are replaced when it is turned into a runnable script:
   8 #
   9 # CONFIGURE_FILE_USE_NODE
  10 # CONFIGURE_FILE
  11 # BIN_DIRECTORY
  12 # EXIWHAT_PS_CMD
  13 # EXIWHAT_PS_ARG
  14 # EXIWHAT_KILL_SIGNAL
  15 # EXIWHAT_EGREP_ARG
  16 # EXIWHAT_MULTIKILL_CMD
  17 # EXIWHAT_MULTIKILL_ARG
  18 # RM_COMMAND
  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 rm=RM_COMMAND
  34
  35 # Some operating systems have a command that finds processes that match
  36 # certain conditions (by default usually those running specific commands)
  37 # and sends them signals. If such a command is defined for your OS, the
  38 # following variables are set and used.
  39
  40 multikill_cmd=EXIWHAT_MULTIKILL_CMD
  41 multikill_arg=EXIWHAT_MULTIKILL_ARG
  42
  43 # In other operating systems, Exim has to use "ps" and "egrep" to find the
  44 # processes itself. In those cases, the next three variables are used:
  45
  46 ps_cmd=EXIWHAT_PS_CMD
  47 ps_arg=EXIWHAT_PS_ARG
  48 egrep_arg=EXIWHAT_EGREP_ARG
  49
  50 # In both cases, kill_arg is the argument for the (multi)kill command to send
  51 # SIGUSR1 (at least one OS requires a numeric value).
  52
  53 signal=EXIWHAT_KILL_SIGNAL
  54
  55 # See if this installation is using the esoteric "USE_NODE" feature of Exim,
  56 # in which it uses the host's name as a suffix for the configuration file name.
  57
  58 if test "x$1" = x--version
  59 then
  60     echo "`basename $0`: $0"
  61     echo "build: EXIM_RELEASE_VERSIONEXIM_VARIANT_VERSION"
  62     exit 0
  63 fi
  64
  65 if [ "CONFIGURE_FILE_USE_NODE" = "yes" ]; then
  66   hostsuffix=.`uname -n`
  67 fi
  68
  69 # Now find the configuration file name. This has got complicated because
  70 # CONFIGURE_FILE may now be a list of files. The one that is used is the first
  71 # one that exists. Mimic the code in readconf.c by testing first for the
  72 # suffixed file in each case.
  73
  74 set `awk -F: '{ for (i = 1; i <= NF; i++) print $i }' <<End
  75 CONFIGURE_FILE
  76 End
  77 `
  78 while [ "$config" = "" -a $# -gt 0 ] ; do
  79   if [ -f "$1$hostsuffix" ] ; then
  80     config="$1$hostsuffix"
  81   elif [ -f "$1" ] ; then
  82     config="$1"
  83   fi
  84   shift
  85 done
  86
  87 # check we have a config file
  88 if [ "$config" = "" -o ! -f "$config" ]; then
  89   echo Config file not found.
  90   exit 1
  91 fi
  92
  93 # Determine where the spool directory is. Search for an exim_path setting
  94 # in the configure file; otherwise use the bin directory. Call that version of
  95 # Exim to find the spool directory. BEWARE: a tab character is needed in the
  96 # first command below. It has had a nasty tendency to get lost in the past. Use
  97 # a variable to hold a space and a tab. This is less likely to be touched.
  98
  99 st='     '
 100 exim_path=`grep "^[$st]*exim_path" $config | sed "s/.*=[$st]*//"`
 101 if test "$exim_path" = ""; then exim_path=BIN_DIRECTORY/exim; fi
 102 spool_directory=`$exim_path -C $config -bP spool_directory | sed "s/.*=[ ]*//"`
 103 process_log_path=`$exim_path -C $config -bP process_log_path | sed "s/.*=[ ]*//"`
 104
 105 # The file that Exim writes when sent the SIGUSR1 signal is specified by
 106 # the process_log_path option. If that is not defined, Exim uses the file
 107 # called "exim-process.info" in the spool directory.
 108
 109 log=$process_log_path
 110 if [ "$log" = "" ] ; then
 111   log=$spool_directory/exim-process.info
 112 fi
 113
 114 # Now do the job.
 115
 116 $rm -f ${log}
 117 if [ -f ${log} ]; then
 118   echo "** Failed to remove ${log}"
 119   exit 1
 120 fi
 121
 122 # If there is a multikill command, use it. On some OS this command is called
 123 # "killall" (Linux, FreeBSD). On Solaris it is called "pkill". Note that on
 124 # Solaris, "killall" kills ALL processes - this is the System V version of this
 125 # command, and not what we want!
 126
 127 if [ "$multikill_cmd" != "" ] && type "$multikill_cmd" >/dev/null 2>&1; then
 128   $multikill_cmd $signal "$multikill_arg"
 129
 130 # No multikill command; do it the hard way
 131
 132 else
 133   $ps_cmd $ps_arg | \
 134     egrep "$egrep_arg" | \
 135     awk "{print \"kill $signal \"\$1}" | \
 136     uniq | sh
 137 fi
 138
 139 sleep 1
 140
 141 if [ ! -s ${log} ] ; then echo "No exim process data" ;
 142   else sort -nu ${log} ; fi
 143
 144
 145 # End of exiwhat