tests/ln/misc

   1 #!/bin/sh
   2
   3 if test "$VERBOSE" = yes; then
   4   set -x
   5   ln --version
   6 fi
   7
   8 pwd=`pwd`
   9 tmp=t2-ln.$$
  10 trap 'status=$?; cd $pwd; rm -rf $tmp && exit $status' 0
  11 trap '(exit $?); exit' 1 2 13 15
  12
  13 framework_failure=0
  14 mkdir $tmp || framework_failure=1
  15 cd $tmp || framework_failure=1
  16
  17 t=tln-symlink
  18 d=tln-subdir
  19 ld=tln-symlink-to-subdir
  20 f=tln-file
  21 fail=0
  22
  23 # Create a simple symlink with both source and destination files
  24 # in current directory.
  25 touch $f || framework_failure=1
  26 rm -f $t || framework_failure=1
  27 ln -s $f $t || fail=1
  28 test -f $t || fail=1
  29 rm $t $f
  30
  31 # Create a symlink with source file and explicit destination directory/file.
  32 touch $f || framework_failure=1
  33 rm -rf $d || framework_failure=1
  34 mkdir $d || framework_failure=1
  35 ln -s ../$f $d/$t || fail=1
  36 test -f $d/$t || fail=1
  37 rm -rf $d $f
  38
  39 # Create a symlink with source file and destination directory.
  40 touch $f || framework_failure=1
  41 rm -rf $d || framework_failure=1
  42 mkdir $d || framework_failure=1
  43 ln -s ../$f $d || fail=1
  44 test -f $d/$f || fail=1
  45 rm -rf $d $f
  46
  47 # Make sure we get a failure with existing dest without -f option
  48 touch $t || framework_failure=1
  49 # FIXME: don't ignore the error message but rather test
  50 # it to make sure it's the right one.
  51 ln -s $t $t 2> /dev/null && fail=1
  52 rm $t
  53
  54 # Make sure -sf fails when src and dest are the same
  55 touch $t || framework_failure=1
  56 ln -sf $t $t 2> /dev/null && fail=1
  57 rm $t
  58
  59 # Create a symlink with source file and no explicit directory
  60 rm -rf $d || framework_failure=1
  61 mkdir $d || framework_failure=1
  62 touch $d/$f || framework_failure=1
  63 ln -s $d/$f || fail=1
  64 test -f $f || fail=1
  65 rm -rf $d $f
  66
  67 # Create a symlink with source file and destination symlink-to-directory.
  68 rm -rf $d $f $ld || framework_failure=1
  69 touch $f || framework_failure=1
  70 mkdir $d || framework_failure=1
  71 ln -s $d $ld
  72 ln -s ../$f $ld || fail=1
  73 test -f $d/$f || fail=1
  74 rm -rf $d $f $ld
  75
  76 # Create a symlink with source file and destination symlink-to-directory.
  77 # BUT use the new --no-dereference option.
  78 rm -rf $d $f $ld || framework_failure=1
  79 touch $f || framework_failure=1
  80 mkdir $d || framework_failure=1
  81 ln -s $d $ld
  82 af=`pwd`/$f
  83 ln --no-dereference -fs $af $ld || fail=1
  84 test -f $ld || fail=1
  85 rm -rf $d $f $ld
  86
  87 # Try to create a symlink with backup where the destination file exists
  88 # and the backup file name is a hard link to the destination file.
  89 touch a b || framework_failure=1
  90 ln b b~ || framework_failure=1
  91 ln -f --b=simple a b || fail=1
  92
  93 # ===================================================
  94 # determine if link(2) follows symlinks on this system
  95 touch a || framework_failure=1
  96 ln -s a symlink || framework_failure=1
  97 ln symlink hard-to-sym > /dev/null 2>&1 || framework_failure=1
  98 ls=`ls -lG hard-to-sym`x
  99 case "$ls" in
 100   *'hard-to-symx') link_follows_symlink=yes ;;
 101   *'hard-to-sym -> ax') link_follows_symlink=no ;;
 102   *) framework_failure=1 ;;
 103 esac
 104
 105 if test $link_follows_symlink = no; then
 106   # Create a hard link to a dangling symlink.
 107   # This is not portable.  At least sunos4.1.4 and OpenBSD 2.3 fail this test.
 108   # They get this:
 109   # ln: cannot create hard link `hard-to-dangle' to `no-such-dir': \
 110   #   No such file or directory
 111   #
 112   ln -s /no-such-dir || fail=1
 113   ln no-such-dir hard-to-dangle > /dev/null 2>&1 || fail=1
 114 fi
 115 rm -rf a symlink hard-to-sym hard-to-dangle
 116 # ===================================================
 117
 118 # Make sure ln can make simple backups.
 119 # This was fixed in 4.0.34.  Broken in 4.0r.
 120 for cmd in ln cp mv ginstall; do
 121   rm -rf a x a.orig
 122   touch a x || framework_failure=1
 123   $cmd --backup=simple --suffix=.orig x a || fail=1
 124   test -f a.orig || fail=1
 125 done
 126
 127 # ===================================================
 128
 129 if test $framework_failure = 1; then
 130   echo 'failure in testing framework' 1>&2
 131   exit 1
 132 fi
 133
 134 exit $fail