install

一套客户/服务器模式的备份系统代码,跨平台,支持linux,AIX, IRIX, FreeBSD, Digital Unix (OSF1), Solaris and HP-UX.

#!/bin/sh
################### Start of $RCSfile: Install,v $ ##################
#
# $Source: /home/alb/afbackup/afbackup-3.3.8.1/RCS/Install,v $
# $Id: Install,v 1.4 2004/07/08 20:34:42 alb Exp alb $
# $Date: 2004/07/08 20:34:42 $
# $Author: alb $
#
#
####### description ################################################
#
#
#
####################################################################

if [ _"$1" = _--testonly ] ; then
  shift
  adminprefix=/tmp
  for f in services inetd.conf passwd group ; do
    ( test -f $adminprefix/$f || cp /etc/$f $adminprefix ; chmod u+w $adminprefix/$f ) >/dev/null 2>&1
  done
fi

#### some basic settings

OSNAME=`uname -s|sed 's/[^a-zA-Z1-9]//g'`

umask 22

servicename="afbackup"

varstosave="servinstdir username userid groupid defdev servvarinstdir clntinstdir clntvarinstdir port use_des des_header des_include des_lib des_libdir disable_threads orduserrestore runclientconfig runserverconfig servicename activate_mserver mservicename mport add_mservice use_zlib zlib_include zlib_libdir usegcc chown_server_var libdesbug_enabled do_install optimizer_flags servnamalias"


#### read the cache file overriding defaults

if [ -r Install.cache ] ; then
  grep '^[ 	]*set[ 	]' Install.cache >/dev/null
  if [ $? -eq 0 ] ; then
    # the old csh-syntax
    CACHE=`sed 's/^[ 	]*set[	 ][	 ]*//g' Install.cache | sed 's/=(/="/g;s/)$/"/g'`
  else
    CACHE=`cat Install.cache`
  fi
  eval "$CACHE"
fi

#### set defaults as not obtained from the cache file

if [ _"$servinstdir" = _ ] ; then
  servinstdir="/usr/local/afbackup"
fi
if [ _"$clntinstdir" = _ ] ; then
  clntinstdir="/usr/local/afbackup"
fi
if [ _"$port" = _ ] ; then
  port=2988
fi
if [ _"$mport" = _ ] ; then
  mport=`expr $port + 1`
fi
if [ _"$servnamalias" = _ ] ; then
  servnamalias="Yes"
fi
if [ _"$orduserrestore" = _ ] ; then
  orduserrestore="No"
fi
if [ _"$use_des" = _ ] ; then
  use_des="No"
fi
if [ _"$des_header" = _ ] ; then
  des_header="des.h"
fi
if [ _"$des_include" = _ ] ; then
  des_include="../libdes"
fi
if [ _"$des_lib" = _ ] ; then
  des_lib="-ldes"
fi
if [ _"$libdesbug_enabled" = _ ] ; then
  libdesbug_enabled="No"
fi
if [ _"$use_zlib" = _ ] ; then
  use_zlib="No"
fi
if [ _"$zlib_include" = _ ] ; then
  zlib_include="/usr/local/include"
fi
if [ _"$zlib_libdir" = _ ] ; then
  if [ _"$zlib_include" = _ ] ; then
    zlib_libdir="/usr/local/lib"
  fi
fi
if [ _"$servvarinstdir" = _ ] ; then
  servvarinstdir="/var/logs/backup"
fi
if [ _"$clntvarinstdir" = _ ] ; then
  clntvarinstdir="/var/logs/backup"
fi
if [ _"$activate_mserver" = _ ] ; then
  activate_mserver="Yes"
fi
if [ _"$add_mservice" = _ ] ; then
  add_mservice="Yes"
fi
if [ _"$mservicename" = _ ] ; then
  mservicename="afmbackup"
fi
if [ _"$chown_server_var" = _ ] ; then
  chown_server_var="Yes"
fi
if [ _"$disable_threads" = _ ] ; then
  disable_threads="No"
fi
if [ _"$optimizer_flags" = _ ] ; then
  optimizer_flags="-O2"
fi
if [ _"$do_install" = _ ] ; then
  do_install="Yes"
fi
if [ _"$runclientconfig" = _ ] ; then
  runclientconfig="Yes"
fi
if [ _"$runserverconfig" = _ ] ; then
  runserverconfig="Yes"
fi


##########################################################################
#
#  Utilities
#
##########################################################################

matches(){
  echo "$1" | egrep -i "$2" >/dev/null
}

tolowercase(){
  sed 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'
}

###########################################################################

yes_no(){
  while true ; do
    echo " "
    echo_n 'Your choice (Yes/No) ['"$1"']: '
    read yesno
    if [ _"$yesno" = _ ] ; then
      yesno="$1"
    fi
    if matches "$yesno" '^(ye?s?|no?)$' ; then
      break
    else
      echo ' '
      echo 'This is not a valid choice. Please try again.'
    fi
  done

  if matches "$yesno" '^ye?s?$' ; then
    yesno="yes"
  else
    yesno="no"
  fi

  test $yesno = yes
}


issymlink(){
  return `/bin/ls -l1 "$1" |grep '^l' | wc -l`
}

save_cache_vars(){
  echo_n "Saving cache, please wait ..."

  /bin/rm -f Install.cache
  touch Install.cache
  for var in $varstosave ; do
    set | grep '^'"$var"= >/dev/null
    if [ $? -eq 0 ] ; then
      eval valuestr='$'"$var"
      echo "$var""='$valuestr'" >> Install.cache
    fi
  done

  echo dummy | awk '{printf "\r                                                                       \r"}'
}

#
# with exit status as argument
#
do_exit(){
  save_cache_vars

  exit $1
}

#
# which as sh function
#
find_program(){
  for dir in `echo $PATH | tr : " "` ; do
    if [ -x "$dir"/"$1" ] ; then
      echo "$dir"/"$1"
      return 0
    fi
  done

  return 1
}

#
# get xinetd entry stanza
#
get_xinetd_entry(){
  sed -n '/^\([ 	]\)\?service[	 ][	 ]*'"$1"'\([	 ].*\)\?/,/^[	 ]*[}][	 ]*/ p' "$2"
}

#
# get xinetd param value
#
get_xinetd_param(){
  sed -n '/^\([ 	]\)\?service[	 ][	 ]*'"$1"'\([	 ].*\)\?/,/^[	 ]*[}][	 ]*/ p' "$3"|grep '^[ 	]*'"$2"'[ 	]*=[ 	]*'|sed 's/^[^=]*=[	 ]*//g'
}

#
# remove named xinetd entry from data stream
#
strip_xinetd_entry(){
  sed '/^\([ 	]\)\?service[	 ][	 ]*'"$1"'\([	 ].*\)\?/,/^[	 ]*[}][	 ]*/ d' "$2"
}

#
# combine empty lines to one empty line
#
comb_empty_lines(){
  awk 'BEGIN{s = 0;}{if(NF = 0){if(s = 0)print; s = 1}else{s = 0; print}}'
}

# return signal number by signal name
#
# seems csh is the only thing to print the signals without any scrolls
#
SIGNALLIST=`csh -f -c 'kill -l' | grep -v '^[ 	]$' | awk '{ for(i = 1; i <= NF; i++) print $i }' | fgrep -vx NULL | sed 's/^SIG//g'`

signalbyname(){
  echo "$SIGNALLIST" | egrep -n '^(SIG)?'"$1" | sed 's/:.*$//g'
}


####### add afbackup entry to /etc/services interactively

add_backup_service(){
  servnamvar="$1"
  eval servnam='"$'"$servnamvar"'"'
  protnam="$2"
  if [ _"$3" != _ ] ; then
    portnumvar="$3"
    eval portnum='"$'"$portnumvar"'"'
  fi

  echo ' '
  echo 'An entry for the backup service is necessary in the system'
  echo "file $adminprefix/services."
  # add_service:
  while true ; do
    cont=no
    servicesline=`egrep '^[ 	]*('"$servnam"'|[^ 	][^ 	]*[ 	][ 	]*[^ 	].*[ 	]'"$servnam"')([ 	].*)?$' $adminprefix/services`
    serviceslinen=`echo $servicesline | wc -w`
    if [ $serviceslinen -gt 0 ] ; then
      while true ; do
	echo "There exists an entry for this service in $adminprefix/services."
	echo "It looks like this:"
	echo ' '
	echo "$servicesline"
	echo ' '
	echo 'Should we remove this entry and create a new one, or add another ?'
	echo '(If no is chosen, the existing entry will be used)'
	echo ' '
	echo_n 'Your choice (Yes/No/Add) [No]: '
	read c
	echo ' '
	if [ _"$c" = _ ] ; then
	  c="no"
	fi
	if matches "$c" '^(ye?s?|no?|ad?d?)$' ; then
	  break
	else
	  echo "Invalid choice. Please try again."
	  echo ' '
	fi
      done

      if matches "$c" '^ad?d?' ; then
 	# newservname:
	while true ; do
	  echo " "
	  echo_n "Enter a name for the new service: "
	  read c
	  if matches "$c" '^[a-zA-Z0-9_-]*$' ; then
	    break
	  fi
	  echo " "
	  echo "A service name should contain only A-Z, a-z, 0-9, _ or -"
	  echo "Please try again."
	done
	servnam="$c"
	continue
      fi

      if matches "$c" '^ye?s?$' ; then
	panic=0
	cp -p $adminprefix/services $adminprefix/services.$$
	CPST=$?

	saved_files="$saved_files $adminprefix/services.$$"

	if [ ! -f $adminprefix/services.$$ -o $CPST -ne 0 ] ; then
	  echo "Panic: cannot make backup copy of $adminprefix/services."
	  echo "I'll not go on to add the entry. You have to do it yourself."
	  panic=1
	else
	  NEWSRVF=`egrep -v '^[ 	]*('"$servnam"'|[^ 	][^ 	]*[ 	][ 	]*[^ 	].*[ 	]'"$servnam"')([ 	].*)?$' "$adminprefix"/services`
	  cp -p "$adminprefix"/services "$adminprefix"/services.tmp.$$ \
	   && echo "$NEWSRVF" > "$adminprefix"/services.tmp.$$ \
	   && /bin/mv "$adminprefix"/services.tmp.$$ "$adminprefix"/services
	  if [ $? -ne 0 ] ; then
	    echo "Error: removing entry from the system file failed."
	    panic=1
	  fi
	fi
	if [ $panic -ne 0 ] ; then
	  echo "The following line must be removed from $adminprefix/services"
	  echo ' '
	  egrep '^[ 	]*('"$servnam"'|[^ 	][^ 	]*[ 	][ 	]*[^ 	].*[ 	]'"$servnam"')([ 	].*)?$' "$adminprefix"/services
	  echo " "
	  echo "Please hit enter when you are done with it."
	  read a
	fi
	continue
      fi    
      if [ `matches "$c" '^no?$'` ] ; then
	portnum=`echo "$servicesline"|awk '{print $2}'|cut -d/ -f1|awk '{print $1}'`
      fi
    else
      while [ `grep -i "$portnum"/"$protnam" "$adminprefix"/services|grep -v $servnam|wc -l` -gt 0 ] ; do
	portnum=`expr $portnum + 1`
      done
      # portserviceselection:
      while true ; do
	if [ $portnum = 2988 ] ; then
	  hint=' (hex 0xbac)'
	else
	  hint=''
	fi
	echo ' '
	echo "Should we add an entry to $adminprefix/services for this"
	echo 'service ? Default port number is '"$portnum$hint"'. If'
	echo 'you do not want to add an entry, just enter no. If you'
	echo 'would like to use a different port number, enter it. If'
	echo 'you want a service name different from '"$servnam"','
	echo 'enter it (all lowercase letters, numbers or -, please).'
	echo 'If everything is ok, enter yes.'
	while true ; do
	  echo " "
	  echo_n 'Your choice (Yes/No/port/servicename) [Yes]: '
	  read c
	  if [ _"$c" = _ ] ; then
	    c='Yes'
	  fi
	  if matches "$c" '^(ye?s?|no?|[0-9][0-9]*|[a-z][a-z0-9-]*)$' ; then
	    break
	  fi
	  echo ' '
	  echo 'This is not a valid choice. Please try again.'
	done
	if matches "$c" '^[0-9][0-9]*$' ; then
	  portnum="$c"
	  echo " "
	  echo "Ok, port number changed to $c."
	  if [ `grep -c '^[ 	]*[a-z][a-z0-9-]*[ 	][ 	]*'"$c/"'[tT][Cc][Pp]' $adminprefix/services` -gt 0 ] ; then
	    echo "Warning: Port number $c is already used in $adminprefix/services."
	  fi
	  continue
	fi
	matches "$c" '^(ye?s?|no?)$'
	M=$?
	if test $M -ne 0 && matches "$c" '^[a-z][a-z0-9-]*$' ; then
	  servnam="$c"
	  echo " "
	  echo "Ok, service name changed to $c."
	  if [ `egrep '^[ 	]*('"$c"'[ 	][ 	]*[1-9][0-9]*/[tT][Cc][Pp]|[^ 	][^ 	]*[ 	][ 	]*[1-9][0-9]*/[tT][Cc][Pp].*[ 	]'"$c"')([ 	].*)?$' $adminprefix/services|wc -l` -gt 0 ] ; then
	    echo "Hm, service name $c is already used in $adminprefix/services."
	    cont=yes
	    break
	  fi
	  continue
	fi
	if matches "$c" '^no?$' ; then
	  :
	else
	  servicesline=`egrep '^[ 	]*[a-z][a-z0-9-]*[ 	][ 	]*'"$portnum/"'[tT][Cc][Pp]([ 	].*)?$' $adminprefix/services | egrep -v '^(.*[ 	])?'"$servnam"'([ 	].*)?$'`
	  lineadded="no"
	  if [ `echo $servicesline | wc -w` -gt 0 ] ; then
	    echo ' '
	    echo "Warning: The port number $portnum is already used in $adminprefix/services,"
	    echo "but without an entry for the name $servnam. It looks like this:"
	    echo ' '
	    echo "$servicesline"
	    echo ' '
	    echo "Should the existing entry be extended with $servnam as an alias name ?"
	    if yes_no $servnamalias ; then
	      servnamalias=Yes
	      cp -p $adminprefix/services $adminprefix/services.$$
	      CPST=$?
	      saved_files="$saved_files $adminprefix/services.$$"

	      if [ ! -f $adminprefix/services.$$ -o $CPST -ne 0 ] ; then
	        echo "Panic: cannot make backup copy of $adminprefix/services."
		echo "I'll not go on to add the entry. Please do it yourself"
		echo "and press Return, when done."
		read v
	      else
		servlineentry=`egrep '^[ 	]*[a-z][a-z0-9-]*[ 	][ 	]*'"$portnum/"'[tT][Cc][Pp]([ 	].*)?$' $adminprefix/services | egrep -v '^(.*[ 	])?'"$servnam"'([ 	].*)?$'`
		servlineno=`egrep -n '^[ 	]*[a-z][a-z0-9-]*[ 	][ 	]*'"$portnum/"'[tT][Cc][Pp]([ 	].*)?$' "$adminprefix"/services | sed 's/:.*$//g'`
		comment=`echo "$servlineentry"|grep '#'|sed 's/^[^#]*#/	#/g'`
		thebeef=`echo "$servlineentry"|sed 's/[ 	]*#.*//g'`
		cp -p "$adminprefix"/services $adminprefix/services.$$.2
		awk '{if(NR == '"$servlineno"') printf "%s '"$servnam"'%s\n","'"$thebeef"'","'"$comment"'"; else print $0}' $adminprefix/services.$$ > $adminprefix/services.$$.2
		NDIFF1=`diff $adminprefix/services.$$ $adminprefix/services.$$.2 | grep '^< ' | wc -l`
		NDIFF2=`diff $adminprefix/services.$$ $adminprefix/services.$$.2 | grep '^> ' | wc -l`
		if [ $NDIFF1 = 1 -a $NDIFF2 = 1 ] ; then
		  /bin/mv $adminprefix/services.$$.2 $adminprefix/services
		else
		  /bin/rm -f $adminprefix/services.$$.2
		  echo "Error: Could not modify $adminprefix/services correctly."
		  echo "Please do it manually and press Return afterwards."
		  read v
		fi
	      fi

	      lineadded="yes"
	    else
	      continue
	    fi
	  fi
	  if [ $lineadded = no ] ; then
 	    echo "$servnam		$portnum/$protnam" >> $adminprefix/services
	  fi
	fi
	break
      done
    fi
    if [ _"$cont" != _yes ] ; then
      break
    fi
  done

  eval "$servnamvar"='"'"$servnam"'"'
  eval "$portnumvar"='"'"$portnum"'"'
}

################### add entry to /etc/inetd.conf file

add_inetd_entry(){
  servnam="$1"
  waitforexit="$2"
  prognam="$3"
  protnam=tcp

  waityesno="no"
  if [ $waitforexit = "wait" ] ; then
    waityesno="yes"
  fi

  echo 'An entry for this service is necessary in the system'
  echo "file $inetdfile."
  while true ; do
    # add_inetdentry:
    if [ $use_xinetd -ne 0 ] ; then
      inetdentry=`get_xinetd_entry $servnam $inetdfile`
    else
      inetdentry=`egrep '^[ 	]*'"$servnam"'([ 	].*)?$' $inetdfile`
    fi
    inetdentryn=`echo $inetdentry|wc -w`
    if [ $inetdentryn -gt 0 ] ; then
      echo "There exists an entry in $inetdfile."
      echo "It looks like this:"
      echo ' '
      if [ $use_xinetd -ne 0 ] ; then
	get_xinetd_entry $servnam $inetdfile
      else
	echo "$inetdentry"
      fi
      echo ' '
      def="No"
      if [ $use_xinetd -eq 0 ] ; then
	I=1
	N=`echo "$inetdentry" | wc -w`
	while [ $I -le $N ] ; do
	  eval i"$I"='"'`echo "$inetdentry" | awk '{print $'"$I"'}'`'"'
	  I=`expr $I + 1`
	done
	if matches "$i6""/" ^"$servinstdir""/" ; then
	  :
	else
	  echo 'The directory path in this entry seems to be wrong (It'
	  echo 'should be '"$servinstdir"'/... )'
	  def="Yes"
	fi
	if matches "$i6" /"$prognam"'$' && matches "$i7" /"$prognam"'$' ; then
	  :
	else
	  echo "The program name in this entry is wrong (it must be $prognam)."
	  def="Yes"
	fi
	if matches "$i7""/" '^'"$servinstdir""/" ; then
	  :
	else
	  echo 'The program path in this entry is wrong ('"it must be $servinstdir/$prognam"').'
	  def="Yes"
	fi
	if [ _"$i5" != _"$username" ] ; then
	  echo 'The username in this entry is wrong (should be '$username').'
	  def="Yes"
	fi
	i3=`echo "$i3" | tolowercase`
	if [ "$i3" != "$protnam" -o "$i4" != "$waitforexit" -o "$i2" != stream ] ; then
	  echo 'The protocol in this entry is wrong (we are allowing'
	  if [ "$waitforexit" = "nowait" ] ; then
	    echo 'several server processes).'
	  else
	    echo 'only one server process)'
	  fi
	  def="Yes"
	fi
      else
	# xinetd
	server=`get_xinetd_param "$servnam" server "$inetdfile"`
	if matches "$server""/" '^'"$servinstdir""/" ; then
	  :
	else
	  echo 'The directory path in this entry seems to be wrong (It'
	  echo 'should be '"$servinstdir"'/... )'
	  def="Yes"
	fi
	server_args=`get_xinetd_param "$servnam" server_args "$inetdfile"`
	I=1
	N=`echo "$server_args" | wc -w`
	while [ $I -le $N ] ; do
	  eval server_args"$I"='"'`echo "$server_args" | awk '{print $'"$I"'}'`'"'
	  I=`expr $I + 1`
	done
	if matches "$server" /"$prognam"'$' && matches "$server_args1" /"$prognam"'$' ; then
	  :
	else
	  echo "The program name in this entry is wrong (it must be $prognam)."
	  def="Yes"