tests/iquote.tests

   1 # bug in bash up to and including bash-3.0 (including patches)
   2 #
   3 # problem is conflict between CTLNUL used internally to denote quoted null
   4 # characters and its value (0x7f) appearing in the expansion of a variable
   5 #
   6 unset x
   7 recho "xxx${x}yyy"
   8
   9 y=$'\177'
  10 recho "xxx${y}yyy"
  11
  12 unset y
  13
  14 unset undef
  15
  16 set ""
  17 recho ${undef-"x$*y"}
  18
  19 set $'\177'
  20 recho ${undef-"x$*y"}
  21
  22 shift $#
  23
  24 f()
  25 {
  26         recho "-${*-x}-"
  27 }
  28
  29 f ''
  30 f $'\177'
  31
  32 unset -f f
  33
  34 x=12345
  35
  36 recho "${x:6:1}"
  37
  38 x=
  39 recho "${x:0:1}"
  40
  41 y=$'\177'
  42 recho "${y:0:1}"
  43
  44 y=xxx$'\177'yyy
  45 recho "${y:3:3}"
  46
  47 unset x y
  48
  49 eval tmp=`printf "$'\\\\\x%x'\n" 127`
  50 printf "%#1x\n" "'$tmp"
  51
  52 x=$'\177'
  53 printf "%#1x\n" "'$x"
  54
  55 a=127
  56 eval c=\$\'\\$(printf '%o' $a)\'
  57 printf "%#1x\n" "'$c"
  58
  59 recho "$c"
  60 recho "$c"@
  61 recho @"$c"@
  62 recho @"$c"
  63
  64 recho "$c"
  65 recho "$c@"
  66 recho "@$c@"
  67 recho "@$c"
  68
  69 unset tmp x a c
  70
  71 qtest()
  72 {
  73         recho ${#q} "${q}" ${q}
  74 }
  75
  76 q=$'\x7f'
  77 qtest
  78
  79 q=${q}a
  80 qtest
  81
  82 q=$'\x7fa'
  83 qtest
  84
  85 q="${q}a"
  86 qtest
  87
  88 unset -f qtest
  89 unset q
  90
  91 set -- ''
  92 recho "${*:1}"
  93 recho  ${*:1}
  94 recho  -${*:1}-
  95 recho  -"${*:1}"-
  96
  97 set $'\177'
  98 recho "${*:1}"
  99 recho "-${*:1}-"
 100
 101 recho  ${*:1}
 102 recho -${*:1}-
 103
 104 shift $#
 105
 106 DEL=`awk 'END{printf("%c", 0+127)}' </dev/null`
 107 T1=a\ $DEL
 108 T2="a $DEL"
 109 set -- x $(echo $T1|wc -c) $(echo $T2|wc -c); shift
 110 L1=$1; L2=$2
 111 case "$L1/$L2" in
 112 4/4) echo ok;;
 113 *) echo CTLNUL bug: L1=$L1, L2=$L2;;
 114 esac
 115
 116 x=$'\177'
 117 recho "aaa${x}bbb"
 118 recho ccc"${x}"ddd
 119 recho eee"$x"fff
 120 recho ggg"$(echo $x)"hhh
 121
 122 x=
 123 recho "aaa${x}bbb"
 124 recho ccc"${x}"ddd
 125 recho eee"$x"fff
 126 recho ggg"$(echo $x)"hhh
 127
 128 set -- $'\177'
 129 recho "aaa${1}bbb"
 130 recho ccc"${1}"ddd
 131 recho eee"$1"fff
 132 recho ggg"$(echo $1)"hhh
 133
 134 set -- ""
 135 recho "aaa${1}bbb"
 136 recho ccc"${1}"ddd
 137 recho eee"$1"fff
 138 recho ggg"$(echo $1)"hhh
 139
 140 recho aaa$'\177'bbb
 141 recho ccc"\x7f"ddd
 142 recho "eee\x7ffff"
 143 recho ggg"$(echo $'\177')"hhh