Interesting.

Just in case it was something to do with version, and now that Strawberry has something newer than 5.32: I downloaded Strawberry 5.36, and tried again, comparing qx vs system for the same command.

C:> perl -TE "say $^V; say qq/Taint mode: ${^TAINT}/; say qx/date/;"
v5.38.0
Taint mode: 1
Thu Oct 26 09:43:51 Pacific Daylight Time 2023



C:> perl -TE "say $^V; say qq/Taint mode: ${^TAINT}/; say system(qq/da
+te/);"
v5.38.0
Taint mode: 1
Insecure $ENV{PATH} while running with -T switch at -e line 1.

[download]

So apparently the Strawberry build on MSWin32 doesn't do taint checking on qx but it does on system. I'm now curious whether syphilis or someone else who has their own build(s) of MSWin32 perl.exe could check on one or more of 5.32, 5.34, and 5.38, to see if there's something about Strawberry's build, or something about MSWin32 builds in general, which cause tainting to behave differently.

In reply to Re^14: How to disable taint checking by Perl? by pryrt
in thread How to disable taint checking by Perl? by dissident

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.