The Tcpdump Group git mirrors - tcpdump/blob - install-sh

   1 #! /bin/sh
   2 #
   3 # install - install a program, script, or datafile
   4 # This comes from X11R5 (mit/util/scripts/install.sh).
   5 #
   6 # Copyright 1991 by the Massachusetts Institute of Technology
   7 #
   8 # Permission to use, copy, modify, distribute, and sell this software and its
   9 # documentation for any purpose is hereby granted without fee, provided that
  10 # the above copyright notice appear in all copies and that both that
  11 # copyright notice and this permission notice appear in supporting
  12 # documentation, and that the name of M.I.T. not be used in advertising or
  13 # publicity pertaining to distribution of the software without specific,
  14 # written prior permission.  M.I.T. makes no representations about the
  15 # suitability of this software for any purpose.  It is provided "as is"
  16 # without express or implied warranty.
  17 #
  18 # Calling this script install-sh is preferred over install.sh, to prevent
  19 # `make' implicit rules from creating a file called install from it
  20 # when there is no Makefile.
  21 #
  22 # This script is compatible with the BSD install script, but was written
  23 # from scratch.  It can only install one file at a time, a restriction
  24 # shared with many OS's install programs.
  25
  26
  27 # set DOITPROG to echo to test this script
  28
  29 # Don't use :- since 4.3BSD and earlier shells don't like it.
  30 doit="${DOITPROG-}"
  31
  32
  33 # put in absolute paths if you don't have them in your path; or use env. vars.
  34
  35 mvprog="${MVPROG-mv}"
  36 cpprog="${CPPROG-cp}"
  37 chmodprog="${CHMODPROG-chmod}"
  38 chownprog="${CHOWNPROG-chown}"
  39 chgrpprog="${CHGRPPROG-chgrp}"
  40 stripprog="${STRIPPROG-strip}"
  41 rmprog="${RMPROG-rm}"
  42 mkdirprog="${MKDIRPROG-mkdir}"
  43
  44 transformbasename=""
  45 transform_arg=""
  46 instcmd="$mvprog"
  47 chmodcmd="$chmodprog 0755"
  48 chowncmd=""
  49 chgrpcmd=""
  50 stripcmd=""
  51 rmcmd="$rmprog -f"
  52 mvcmd="$mvprog"
  53 src=""
  54 dst=""
  55 dir_arg=""
  56
  57 while [ x"$1" != x ]; do
  58     case $1 in
  59         -c) instcmd="$cpprog"
  60             shift
  61             continue;;
  62
  63         -d) dir_arg=true
  64             shift
  65             continue;;
  66
  67         -m) chmodcmd="$chmodprog $2"
  68             shift
  69             shift
  70             continue;;
  71
  72         -o) chowncmd="$chownprog $2"
  73             shift
  74             shift
  75             continue;;
  76
  77         -g) chgrpcmd="$chgrpprog $2"
  78             shift
  79             shift
  80             continue;;
  81
  82         -s) stripcmd="$stripprog"
  83             shift
  84             continue;;
  85
  86         -t=*) transformarg=`echo $1 | sed 's/-t=//'`
  87             shift
  88             continue;;
  89
  90         -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
  91             shift
  92             continue;;
  93
  94         *)  if [ x"$src" = x ]
  95             then
  96                 src=$1
  97             else
  98                 # this colon is to work around a 386BSD /bin/sh bug
  99                 :
 100                 dst=$1
 101             fi
 102             shift
 103             continue;;
 104     esac
 105 done
 106
 107 if [ x"$src" = x ]
 108 then
 109         echo "install:  no input file specified"
 110         exit 1
 111 else
 112         true
 113 fi
 114
 115 if [ x"$dir_arg" != x ]; then
 116         dst=$src
 117         src=""
 118
 119         if [ -d $dst ]; then
 120                 instcmd=:
 121         else
 122                 instcmd=mkdir
 123         fi
 124 else
 125
 126 # Waiting for this to be detected by the "$instcmd $src $dsttmp" command
 127 # might cause directories to be created, which would be especially bad
 128 # if $src (and thus $dsttmp) contains '*'.
 129
 130         if [ -f $src -o -d $src ]
 131         then
 132                 true
 133         else
 134                 echo "install:  $src does not exist"
 135                 exit 1
 136         fi
 137
 138         if [ x"$dst" = x ]
 139         then
 140                 echo "install:  no destination specified"
 141                 exit 1
 142         else
 143                 true
 144         fi
 145
 146 # If destination is a directory, append the input filename; if your system
 147 # does not like double slashes in filenames, you may need to add some logic
 148
 149         if [ -d $dst ]
 150         then
 151                 dst="$dst"/`basename $src`
 152         else
 153                 true
 154         fi
 155 fi
 156
 157 ## this sed command emulates the dirname command
 158 dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
 159
 160 # Make sure that the destination directory exists.
 161 #  this part is taken from Noah Friedman's mkinstalldirs script
 162
 163 # Skip lots of stat calls in the usual case.
 164 if [ ! -d "$dstdir" ]; then
 165 defaultIFS='
 166 '
 167 IFS="${IFS-${defaultIFS}}"
 168
 169 oIFS="${IFS}"
 170 # Some sh's can't handle IFS=/ for some reason.
 171 IFS='%'
 172 set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
 173 IFS="${oIFS}"
 174
 175 pathcomp=''
 176
 177 while [ $# -ne 0 ] ; do
 178         pathcomp="${pathcomp}${1}"
 179         shift
 180
 181         if [ ! -d "${pathcomp}" ] ;
 182         then
 183                 $mkdirprog "${pathcomp}"
 184         else
 185                 true
 186         fi
 187
 188         pathcomp="${pathcomp}/"
 189 done
 190 fi
 191
 192 if [ x"$dir_arg" != x ]
 193 then
 194         $doit $instcmd $dst &&
 195
 196         if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
 197         if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
 198         if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
 199         if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
 200 else
 201
 202 # If we're going to rename the final executable, determine the name now.
 203
 204         if [ x"$transformarg" = x ]
 205         then
 206                 dstfile=`basename $dst`
 207         else
 208                 dstfile=`basename $dst $transformbasename |
 209                         sed $transformarg`$transformbasename
 210         fi
 211
 212 # don't allow the sed command to completely eliminate the filename
 213
 214         if [ x"$dstfile" = x ]
 215         then
 216                 dstfile=`basename $dst`
 217         else
 218                 true
 219         fi
 220
 221 # Make a temp file name in the proper directory.
 222
 223         dsttmp=$dstdir/#inst.$$#
 224
 225 # Move or copy the file name to the temp name
 226
 227         $doit $instcmd $src $dsttmp &&
 228
 229         trap "rm -f ${dsttmp}" 0 &&
 230
 231 # and set any options; do chmod last to preserve setuid bits
 232
 233 # If any of these fail, we abort the whole thing.  If we want to
 234 # ignore errors from any of these, just make sure not to ignore
 235 # errors from the above "$doit $instcmd $src $dsttmp" command.
 236
 237         if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
 238         if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
 239         if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
 240         if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&
 241
 242 # Now rename the file to the real destination.
 243
 244         $doit $rmcmd -f $dstdir/$dstfile &&
 245         $doit $mvcmd $dsttmp $dstdir/$dstfile
 246
 247 fi &&
 248
 249
 250 exit 0