diff options
Diffstat (limited to 'library/safe.tcl')
| -rw-r--r-- | library/safe.tcl | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/library/safe.tcl b/library/safe.tcl index 52f6e85..4ad5c36 100644 --- a/library/safe.tcl +++ b/library/safe.tcl @@ -467,7 +467,8 @@ proc ::safe::InterpInit { ::interp expose $slave file foreach subcommand {dirname extension rootname tail} { - ::interp alias $slave ::tcl::file::$subcommand {} file $subcommand + ::interp alias $slave ::tcl::file::$subcommand {} \ + ::safe::AliasFileSubcommand $slave $subcommand } foreach subcommand { atime attributes copy delete executable exists isdirectory isfile @@ -675,6 +676,17 @@ proc ::safe::CheckFileName {slave file} { } } +# AliasFileSubcommand handles selected subcommands of [file] in safe +# interpreters that are *almost* safe. In particular, it just acts to +# prevent discovery of what home directories exist. + +proc ::safe::AliasFileSubcommand {slave subcommand name} { + if {[string match ~* $name]} { + set name ./$name + } + tailcall $slave invokehidden tcl:file:$subcommand $name +} + # AliasGlob is the target of the "glob" alias in safe interpreters. proc ::safe::AliasGlob {slave args} { @@ -761,6 +773,8 @@ proc ::safe::AliasGlob {slave args} { foreach opt [lrange $args $at end] { if {![regexp $dirPartRE $opt -> thedir thefile]} { set thedir . + } elseif {[string match ~* $thedir]} { + set thedir ./$thedir } if {$thedir eq "*" && ($thefile eq "pkgIndex.tcl" || $thefile eq "*.tm")} { |