Tcl / Read-Only Bugs / #4810 Can't expose file command in safe interp

The Tool Command Language implementation

#4810 Can't expose file command in safe interp

Milestone: obsolete: 8.6b1

Status: closed-fixed

Owner: Donal K. Fellows

Labels: 16. Commands A-H (114)

Priority: 9

Updated: 2011-09-26

Created: 2011-03-14

Private: No

Using ActiveTcl 8.6b5 on Ubuntu Linux

I'm having the following problem:
% set i [interp create -safe]
interp0
% interp expose $i file
::tcl::mathfunc::maxunknown hidden command "file"
%

Discussion

Jeffrey Hobbs - 2011-03-15

priority: 5 --> 7
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Jeffrey Hobbs - 2011-03-15

This regression needs addressing before 8.6 final.

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Donal K. Fellows - 2011-03-16

[file] is exposed, but its unsafe subcommands fail.

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Don Porter - 2011-09-23

priority: 7 --> 9
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Donal K. Fellows - 2011-09-26

I've made [file] be hidden in safe interpreters, but I don't think it's a very good idea all the same. The change to having it be an ensemble changes the way you are best advised to write a security policy (i.e., [file] should be there, but only with safe operations in it).

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Donal K. Fellows - 2011-09-26

status: open --> closed-fixed
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